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SemisRationalised sizes of Blooms, Billets and Slabs

Item Size Sectional Weight Millmm kg/m

Blooms Bhilai Steel Plant150 x 150 172.00 BBM

260 x 300 585.00 BBLM

280 x 285 581.00 BBLM

295 x 320 700.00 BBLM

300 x 325 730.00 BBLM

300 x 335 765.00 BCCS

310 x 340 770.00 BBLM

320 x 320 735.00 BBLM

Durgapur Steel Plant150 x 150 176.63 DCCP

185 x 160 239.62 DBLM

190 x 160 230.00 DBLM

200 x 160 242.00 DBLM

200 x 200 314.00 DBLM

210 x 160 255.00 DBLM

230 x 160 279.00 DBLM

230 x 230 400.00 DBLM

240 x 160 291.00 DBLM

250 x 160 303.00 DBLM

250 x 210 398.00 DBLM

250 x 250 490.63 DBLM

260 x 140 276.00 DBLM

300 x 140 318.00 DBLM

300 x 250 568.00 DBLM

300 x 300 706.50 DBLM

350 x 140 371.00 DBLM

365 x 140 387.00 DBLM


IISCO Steel Plant230 x 250 490.60 IBLM

200 x 200 315.00 IBLM

180 x 180 233.6 IBLMkg/m


Billets Bhilai Steel Plant 60 x 60* 28.00 BMM 90 x 90 60.70 BBM100 x 100 76.20 BBM110 x 110 92.00 BBM

Durgapur Steel Plant100 x 100 76.80 DBM/DCCP125 x 125 122.65 DBM

IISCO Steel Plant91 x 91 63.3 IBM92 x 92 64.2 IBM96 x 96 71.0 IBM118 x 118 107.0 IBM125 x 125 120.0 IBM

Slabs Bhilai Steel Plant200 x 250 392.50 BBLM200 x 310 486.70 BBLM200 x 410 643.70 BBLM205 x 325 523.00 BBLM205 x 405 651.75 BBLM200 x 1250 1962.50 BCCS200 x 1300 2041.00 BCCS200 x 1500 2355.00 BCCS

250 x 1500 2943.75 BCCS

320 x 1500 3768.00 BCCS


Durgapur Steel Plant140 x 80 86.83 DBM150 x 80 93.11 DBM160 x 80 99.39 DBM180 x 80 111.16 DBM190 x 80 117.44 DBM205 x 75 118.82 DBM235 x 75 136.48 DBM240 x 75 139.42 DBM

* Rounded corners square

Abbreviation used : BCCS : Bhilai Continuous Casting Shop

BBLM : Bhilai Blooming Mill

BBM : Bhilai Billet Mill

BMM : Bhilai Merchant Mill

DBLM : Durgapur Blooming Mill

DBM : Durgapur Billet Mill

DCCP : Durgapur Continuous Casting Plant

IBLM : IISCO Blooming Mill

IBM : IISCO Billet Mill

Common grades : IS 2830/1992, IS 2831/1975,SAE 1070, EN 8, EN 9, SAIL Tower, SAILMA, 20 Mn Cr 5,IS 1875/1992, SWR-14, SAIL HCR

Chemical Composition

Specification Grade C% Mn% P% max S% max

IS 2830/ C15 0.12-0.18 0.30-0.60

C18 0.15-0.21 0.30-0.60

C20 0.17-0.23 0.30-0.60

C15MMn 0.12-0.18 0.60-1.00

C18MMn 0.15-0.21 0.60-1.00

C20MMn 0.17-0.23 0.60-1.00

C15HMn 0.12-0.18 1.00-1.50

C18HMn 0.15-0.21 1.00-1.50

C20HMn 0.17-0.23 1.00-1.50

IS 2831/ Fe310 OB 0.10-0.17 0.40-1.20 0.070 0.0701975

Fe410 OB 0.18-0.30 0.40-1.20 0.070 0.070

SAE 1070 0.65-0.75 0.60-0.90 0.040 0.045

EN 8 0.35-0.45 0.60-1.00 0.06 0.06

EN 9 0.50-0.60 0.50-0.80 0.06 0.06

SAIL Tower Grade 1 0.12-0.17 0.8-1.2 0.045 0.045

Grade 2 0.15-0.20 1.0-1.5 0.045 0.045

Grade 3 0.18-0.22 1.0-1.5 0.045 0.045Grade 4 0.16-0.20 1.2-1.5 0.045 0.045

Grade 5 0.18-0.22 1.2-1.5 0.045 0.045

Grade 6 0.2-0.24 1.2-1.5 0.045 0.045

SAILMA 350 HI 0.20 max 1.50 max 0.04 0.0420Mn Cr5 0.17-0.22 1.1-1.4 0.035

Spring Steel 55 Si 7 0.50-0.60 0.80-1.00 0.04 0.04(Si1.5-2.0)

60Si7 0.55-.65 0.80-1.0 0.035 0.035(Si1.5-2.0)

SUP IIA 0.55-0.65 0.7-1.0 0.035 0.035Si 0.15-0.35, Cr 0.7-1.0, B 0.0005 min, Cu+8Sn 0.4 max

High Carbon SAE1040- 0.35-0.85 0.6-0.9 0.035 0.035SAE1080

For P&S refer toNote on next

page

1992


Specification Grade C% Mn% P% max S% max

IS 1875/ Class 1 0.1-0.18 0.6-0.9 0.04 0.04

Class 1A 0.1-0.2 0.6-0.9 0.04 0.04

Class 2 0.15-0.25 0.6-0.9 0.04 0.04

Class 2A 0.2-0.3 0.6-0.9 0.04 0.04

Class 3 0.25-0.35 0.6-0.9 0.04 0.04

Class 3A 0.3-0.4 0.6-0.9 0.04 0.04

Class 4 0.4-0.5 0.6-0.9 0.04 0.04

Class 5 0.5-0.6 0.6-0.9 0.04 0.04

Class 6 0.6-0.7 0.5-0.8 0.04 0.04

SWR-14 0.14 0.70 0.05 0.05

SAIL HCR 0.20 0.045 0.045

SAIL BORON 0.20-0.25 1.20-1.5 0.04 0.04

B : 0.003-0.005, Cr : 0.35-0.50

ASTM A105 0.2-0.24 0.85-1.5 0.035 0.035

HCRS (Cu-P) 0.15 max 0.25-0.80 0.07-0.15 0.03

Cu : 0.20 min

1992

Notes :IS 2830/1992 :

(1) Min Si content not less than 0.1% in Silicon killed steel.(2) Total micro alloying elements like Nb, V and Ti not to exceed 0.2%.(3) Copper content shall be between 0.20 and 0.35%, if agreed.(4) All types of steel in above specification may be supplied in three grades A, B,

& C, having Sulphur, Phosporous (ladle analysis) and Carbon equivalent asfollows: Grade A - Sulphur and Phosporous each 0.05 max, CE 0.42 max;Grade B - Sulphur and Phosporous each 0.045 max, CE 0.41 max;Grade C - Sulphur and Phosporous each 0.04 max, CE 0.39 max.

IS 2831/1975 : (1) For Fe 310 OB Copper content may be 0.35%.(2) For Fe 410 OB Copper content may be 0.35% max

SAE 1070 : Si 0.05 – 0.30%EN 8, EN 9 : Si 0.05 – 0.35%SAIL Tower : (for grades 4, 5 & 6) : Nb/V 0.003% min. CE - Gr-1 0.35-0.40,

Gr-2 & 3 0.40-0.45, Gr-4 0.35-0.40, Gr-5 0.40-0.45, Gr-6 0.40-0.49

SAILMA : Nb+V+Ti 0.20 max20 Mn Cr 5 : Cr 1.4- 1.7%IS 1875/1992 : Si 0.15-0.35%SAIL HCR : Content of corrosion resistant elements will be 0.75% min,

S+P = 0.090% maxHIGH CARBON : Si = 0.15-0.30%* SAIL BORON, SAIL SPRING & HIGH CARBON Billet produced from DSP with E.M.S.

Tolerances

Product Width across Thickness TolerancesFlat (mm) (mm) (mm)

IS:2830/ Billets Up to 75 – ± 1.51992 Over 75 – ± 3

Blooms Up to 150 – + 4.0, - 3.0Over 150 – + 6.0, - 3.0

Slabs Up to 300 Over 150 + 3.0, - 4.0Up to 150 + 3.0, - 6.0

Over 300 Up to 150 + 5.0, - 10.00

Applications

Specification Application

IS 2830/1992 Re-rolling into structurals, rounds and rebars

IS 2831/1975 Commercial grade for re-rolling into structuralsand rounds.

SAE 1070 Manufacture of tractor discs

EN 8, EN 9 Forging purposes

IS 1875/1992

SAIL Tower Re-rolling into structurals for TLT segment

SAILMA 350 Re-rolling into high tensile structurals

20 Mn Cr 5 Case hardening steel for automobile gear

SWR-14 Re-rolling into wire rods

SAIL HCR Re-rolling into high corrosion resistant rebars

SAIL BORON Tractor Disc

SpringSteel/Sup 11A Helical/Leaf Springs, Rail Clips

Chain Steel Chain links

High Carbon Wire rope, cycle spoke, Tyre bead etc.

ASTM A 105 Pipe Flanges


StructuralsRationalised sizes of Beams/Joists, Channels and Angles

Section Dimensions Sectional Weight Lengthmm kg/m m

Beams/ Durgapur Steel Plant

175 x 85 x 5.8 19.6

200 x 100 x 5.7 25.4

IISCO Steel Plant

250 x 125 x 6.9 37.3

300 x 140 x 7.7 46.0

350 x 140 x 8.1 52.4

400 x 140 x 8.9 61.5

450 x 150 x 9.4 72.4

Beams Bhilai Steel Plant

250 x 125 x 6.9 37.3 10 - 13

300 x 140 x 7.7 46.0

350 x 140 x 8.1 52.4

400 x 140 x 8.9 61.5

450 x 150 x 9.4 72.4

500 x 180 x 10.2 86.9

600 x 210 x 12 123.0

for alldimensions

10 - 11.5

Joists

11.5 &above

Durgapur Steel Plant

125 x 65 x 5.3 13.10 10 - 11.5

125 x 66 x 6 13.70

150 x 75 x 5.7 16.80

150 x 76 x 6.5 17.70

175 x 75 x 6 19.60

200 x 75 x 6.2 22.30

200 x 76 x 7.5 24.30

Bhilai Steel Plant

250 x 82 x 9 34.2 10 - 12

300 x 90 x 7.8 36.3

400 x 100 x 8.8 50.1

IISCO Steel Plant

75 x 40 x 4.8 7.14 10 & above

100 x 50 x 5 9.56

125 x 65 x 5.3 13.1

250 x 82 x 9 34.2

300 x 90 x 7.8 36.3

for alldimensions

for alldimensions

11.5 &above

Channels Bhilai Steel Plant

75 x 40 x 4.8 7.14 10 - 12

100 x 50 x 5 9.56




Angles Bhilai Steel Plant50 x 50 x 5* 3.8 10 -13

50 x 50 x 6 4.5

60 x 60 x 5/6/8* 4.5/5.4/7.0

65 x 65 x 5* 4.9

65 x 65 x 6/8/10 5.8/7.7/9.4

70 x 70 x 5/6* 5.3/ 6.3

75 x 75 x 5/ 6/ 8/ 10 5.7/6.8/8.9/11.0

80 x 80 x 6/8/10 7.3/9.6/11.8

90 x 90 x 6/8/10 8.2/10.8/13.4

Durgapur Steel Plant100 x 100 x 10/12 14.9/17.7 10 - 11.5

110 x 110 x 10/12 16.6/19.7

130 x 130 x 10/12 19.7/23.5

150 x 150 x 12/16 22.9/27.3

Bhilai Steel Plant150 x 150 x 16/ 20* 35.8/44.1 10 -13

200 x 200 x 16 48.5

200 x 200 x 20 60.0

200 x 200 x 24 70.8

for alldimensions

for alldimensions

for alldimensions


Angles IISCO Steel Plant65 x 65 x 6 5.8 10 & above

65 x 65 x 8 7.7

65 x 65 x 10 9.4

75 x 75 x 6 6.8

75 x 75 x 8 8.9

75 x 75 x 10 11.0

90 x 90 x 6 8.2

90 x 90 x 8 10.8

90 x 90 x 10 13.4

90 x 90 x 12 15.8

100 x 100 x 6 9.2

100 x 100 x 8 12.1

100 x 100 x 10 14.9

100 x 100 x 12 17.7

130 x 130 x 10 19.7

130 x 130 x 12 23.5

150 x 150 x 12 27.3

150 x 150 x 16 35.8

150 x 150 x 20 44.1

for alldimensions

11.5 &above



Unequal IISCO Steel PlantAngles

125 x 75 x 8 12.1 10 &above

125 x 75 x 10 14.9

150 x 115 x 10 20 .1 11.5 &above

150 x 115 x 12 24.0

* Can be produced, if sufficient orders are available.

Below 10m/11.5m length can also be supplied

While standard lengths are mentioned in tables above, BSP can supplymaterial in any fixed length in the range 6-13 m and DSP can supply in anyfixed length in the range 5.5-11.5 m

Common grades : IS 2062/1999 and SAILMA

Copper bearing structurals are also rolled as per customer’s specifications.High strength light structurals are also available as per the needs of TLTmanufacturers.

Structurals are also available in the following foreign specifications:

ASTM-A-36, JIS-G-3101-SS400, BS-4360 Grades 40A, 43A, 43B, 43C,50B, 50C, EN-10025, Grades S-275 JO, JR, S-355 JO, JR, DIN-17100 ST37.2/44.2

(all in semi-killed quality), if sufficient orders are available.

Rolling tolerance for Structural Steel sections as per IS1852/1985

Beams

Depth Tolerance Width of flange Tolerance

Up to 200 mm + 3.0, - 2.0 mm Up to 100 mm ± 2.0 mm

>200 to 400 mm ± 3.0 mm >100 to 125 mm ± 2.5 mm

>400 to 600 mm ± 4.0 mm >125 to 250 mm ± 4.0 mm

Tolerance on weight per metre shall be ± 2.5% or alternatively +4, -1% ofthe weight per metre. The permissible limits for camber and sweep shall be0.2% of the length.

Channels

Depth Tolerance Width of flange Tolerance

Up to 200 mm ± 2.5 mm Up to 100 mm ± 2 mm

> 200 to 400 mm ± 3.0 mm

Tolerance on weight per metre shall be ± 2.5% or alternatively +4, -1% ofthe standard weight per metre up to 200 mm depth. The permissible limitsfor camber and sweep shall be 0.2% of the length.

Angles

Leg length Tolerance Leg length Camber

Up to 45 mm ± 1.5 mm < 100 mm As peragreement

>45 to 100 mm ± 2.0 mm > 100 mm 0.2% oflength

>100 mm ± 2%

Tolerance on Sectional Weight

Thickness Tolerance

Up to 3 mm ± 5%

Over 3 mm + 5%, -3%

Structurals with closer tolerance can be supplied by mutual agreement.



Specification Grade C% Mn% P% S% CEmax max max max max

IS 2062/ Grade A 0.23 1.5 0.050 0.050 0.421999 (Sk)

Grade B 0.22 1.5 0.045 0.045 0.41(K)

Si = 0.40% max.

Straightening and Despatch :

At BSP’s Merchant Mill and Rail & Structural Mill every piece of each sectionis straightened through a straightening machine. Heavy structurals fromR&S Mill are despatched piece wise while light structurals from MerchantMill are clubbed in bundles of 8-12 tonnes in fixed length.

Angles from Merchant Mill for TLT manufacturers can be nested andpacketted, after piece by piece inspection. Customers are requested tospecify this, if required.

At DSP’s Section Mill 100% products are straightened.

SAILMA Nb + Ti +V%

300 0.25 1.5 0.055 0.055 0.20 max

300 HI 0.20 1.5 0.040 0.040 0.20 max

350 0.25 1.5 0.055 0.055 0.20 max

350 HI 0.20 1.5 0.040 0.040 0.20 max

410 0.25 1.5 0.055 0.055 0.20 max

410 HI 0.20 1.5 0.040 0.040 0.20 max

HCRS 0.15 0.25- 0.07- 0.03 Cu : 0.20(Cu-P) max 0.8 0.15 max min

Mechanical Properties

Specifi- Grade Yield Ultimate Elonga- Charpy Bendcation stength Tensile tion % Impact Test

Min Strength in gauge ValueMPa Min Length Joules

MPa 5.65√√√√√So MinMin

<20 20-40 >40mm mm mm

IS 2062/ Grade 250 240 230 410 23 3T1999 A (Sk)

Grade 250 240 230 410 23 27 2T/B (K) 3T*

* 2T for < 25 mm thickness, 3T for > 25 mm thickness

SAILMA 300 300 440-560 20 0°C -20°C 3T

300 HI 300 440-560 21 40 - 3T

350 350 490-610 20 3T

350 HI 350 490-610 21 40 30 3T

410 410 540-660 19 3T

410 HI 410 540-660 20 35 25 3T

HCRS - 340 480 21 1T(Cu-P)

Crane RailsProfile Sectional Standard Mill

Wt, kg/m Length, m

CR - 80* 64.2 13 Rail & Structural Mill, Bhilai


CR -120* 118.0 13 Rail & Structural Mill, Bhilai


* Denotes head width

Specification Chemical Composition %

C Mn P Max S Max Si

Crane Rails 0.40-0.65 0.85-1.55 0.060 0.060 0.03-0.30


Special SectionsZ - Section Centre Sill

Ixx 23624 cm4

ZTOP 1442 cm3

ZBTM 1448 cm3

Section 327 x 174 x 101.5 mm

Sectional Weight 55.211 kg/m

Weight per metre 110.422 kg

Area of Section 140.945 cm2

Strees Ratio Top 0.0071

Strees Ratio Bottom 0.0071

ApplicationsApplications : Railway Wagons

Standard Length : 11.5 m and above

Length below 11.5 m can also be supplied

Rolling ToleranceLong Flange + 5 mm - 3.0 mm

Short Flange + 4.0 mm - 6.0 mm

Sectional Weight + 5% - 3%

Steel Quality

IS 2062/1999 Gr. A with or without Cu.

IS 8500/1991 Fe490/540 with or without Cu.

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Z - Type Sheet-piling SectionSection (mm) 400 x 185 x 7.5/8.5Weight per meter of pile 49.25 kgWeight per sqare meter of wall 123.12 kgSection Modules per meter wall 1021 cm3

Moment of inertia per meter of wall 9448.5 cm4

Section area per meter of wall 157 cm2

Perimeter per meter of wall 283 cmDistance of joints (centre to centre) 400 mmDepth of section 185 mmWeb thickness 7.5 mmFlange thickness 8.5 mm

ApplicationsApplications : Leak proof retaining wall in construction of dams, bridgefoundation, construction in ports.Advantages : Sharp edged lock may be considered as being tight. Due toself-locking facilities these can be erected very easily and quickly withoutany extra fixing details, Z-Piling retaining wall can resist higher amount oftransverese thrust in comparison to wall of other equivalent structuralsections.Typical Length : 11 meters and above.

Steel QualityIS 2062/1999 Gr. A (SK) with or without Cu.Tolerance on Sectional weight + 4% - 2.5%

M S ArchSectional Wt. 28.2 kg/mZxx 93. 1 cm3

Ixx 540 cm4

rxx 3.89 cmSectional Area 3570 mm2

Zyy 89 cm3

Iyy 620 cm4

ryy 4.17 cmMin YS 250 MPaMax YS 410 MPaMax. Rolling Length 12.5 m (approx)

ApplicationsApplications : To support underground galleries in collieries and forconstructions of tunnels in hydroelectric projects etc.

Advantages : Can resist higher amount of axial compresive load incomparison to equivalent ISMB joist sections.Due to its configuration, itcan be bent to arch shape without any corrugation. Sliding joint facilityhelps to release exces overburden load.

Typical Length : 11.5 meters and above. Length below 11.5 m can alsobe supplied.

Steel QualityIS 2062/1999 Gr. A with or without Cu.

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Common grades : IS 2062/1999, IS 1786/1985, (SAIL TMT and SAILTMT HCR). Also available in the following foreign specifications :ASTM-A 615 Grade 40 (for TMT wire rods) and ASTM-A 615 Grade 40/Grade 60 (for TMT Bars), if sufficient orders are available.

Packaging : Signode strapping in bundles of 5 tonnes

Plain Rounds/TMT rebars/TMT-HCR rebars in sizes 8, 10 and 12 mm areavailable in coils. The other sizes of Plain Rounds/TMT rebars/TMT-HCRrebars are available in straight lengths.

Applications

Specification Application Special Qualities

SAIL TMT General concrete Excellent bendability,reinforcements in high good weldability andrise buildings, bridges high fatigueand other concrete resistance onstructures dynamic loading

SAIL TMT HCR Construction exposed In addition to aboveto coastal, marine or this has high corrosionunderground environment resistance properties

SAIL TMT Underground mine roof Better bond propertiesRoof Bolts support and slope with excellent strength

stabilisation in hills

SAIL TMT EQR Construction in Better UTS/YS ratioearthquake prone zone

Tolerances on Lengths and Nominal Mass as per IS: 1786 - 1985Specified LengthsIf bars are specified to be cut to certain lengths, each bar shall becut within the deviations of + 75 mm, - 25 mm on the specified length,but if minimum lengths are specified, the deviations shall be+ 50 mm, - 0 mm.

Tolerance on Nominal Mass

Nominal Size Tolerance on the Nominal Mass, percent

mm Batch Individual Individual Sample Sample* for Coils only* *

<10 ± 7 - 8 ± 8

> 10 to 16 ± 5 - 6 ± 6

> 16 ± 3 - 4 ± 4

* For individual sample plus tolerance is not specified.* * For coils batch tolerance is not applicable

Bars, Rods & RebarsRationalised sizes of Bars, Rods & Rebars

Plain Rounds SAIL TMT/ SAIL TMT HCR Mill

Size Weight Size Weight Lengthmm kg/m mm kg/m m

8 0.395 available BWRM

10 0.617 in

12 0.89 coils

16 1.5 16 1.58 5.5 to 13 DMM/IMM

18 2.00 18 2.00 for all other DMM

20 2.47 20 2.47 sizes DMM/IMM

22 2.98 22 2.99 DMM/IMM

25 3.85 25 3.86 DMM/IMM

28 4.83 28 4.83 DMM/BMMIMM

32 6.31 32 6.31 BMM/IMM

33.5* 6.92 BMM

36 7.99 36 7.99 BMM/IMM

40 9.85 40 9.85 BMM/IMM

45 12.50 BMM

50 15.41 BMM/IMM

53* 17.32 BMM/IMM

56 19.34 BMM/IMM

60* 22.0 BMM

63 24.47 BMM/IMM

67* 27.68 BMM/IMM

80 39.50 BMM/IMM

*Bright Bar SizesAbbreviations used : BWRM : Bhilai Wire Rod Mill

BMM : Bhilai Merchant MillDMM : Durgapur Merchant MillIMM : IISCO Merchant Mill



Specifi- Grade Yield Ultimate Elonga- Bend Testcation Strength Tensile tion min

MPa min Strength % min

<20 20-40 >40 MPa Up to Abovemm mm mm min 22 22

mm mm

IS Gr A(Sk) 250 240 230 410 23.0 2d 3d

2062/ Gr B (K) 250 240 230 410 23.0 2d 3d

1999 Gr C (K) 250 240 230 410 23.0 2d 3d

IS Fe 415 415 485 14.5 3d 4d

1786/ Fe 500 500 545 12.0 4d 5d

1985 Fe 550 550 585 8.0 5d 6d

Up to Above28mm 28mm

SAIL Fe 415 415 500 22.0 20.0 2d 3d

TMT Fe 500 500 580 20.0 18.0 2d 3d

Fe 550 550 680 18.0 16.0 2d 3d

Up to Above28mm 28mm

SAIL Fe 415 415 500 500 22.0 20.0 2d 3d

TMT Fe 500 500 580 560 20.0 18.0 2d 3d

HCR Fe 550 550 630 610 18.0 16.0 2d 3d

SAIL Fe 415 415 1.2 times of YS 20 2d 3d

TMT Fe 500 500 18

(Roof Fe 550 550 1.15 times 16

Bolt)* Fe 600 600 of YS 14

SAIL Fe 415 415 1.25 times of YS 22 20 2d 3d

TMT Fe 500 500 1.2 times of YS 20 18 2d 3dEQR


Specification Grade C % Mn% P % S % CE/S+Pmax max max max max

CE max

IS 2062/1999 Gr A (Sk) 0.23 1.50 0.050 0.050 0.42Gr B (K) 0.22 1.50 0.045 0.045 0.41Gr C (K) 0.20 1.50 0.040 0.040 0.39

S+P% max

IS 1786/1985 Fe 415 0.30 0.060 0.060 0.110Fe 500 0.30 0.055 0.055 0.105Fe 550 0.30 0.050 0.050 0.100

SAIL TMT Fe 415 0.25 0.050 0.050 0.100Fe 500 0.25 0.050 0.050 0.100Fe 550 0.25 0.050 0.050 0.100

CE max

SAIL TMT Fe 415 0.20 1.50 0.035 0.035 0.55HCR-A Fe 500

Fe 550SAIL TMT Fe 415 0.20 1.50 0.035 0.035 0.42HCR-M Fe 500

Fe 550SAIL TMT Fe 415 0.15 1.50 0.035 0.07- 0.35HCR-P Fe 500 0.12

Fe 550S+P max

SAIL TMT Fe 415 0.25 1.5 0.035 0.035 0.065Roof/Rock Bolts Fe 500

Fe550Fe600

CE max

SAIL TMT EQR Fe415 0.22 1.50 0.040 0.040 0.42/0.53 #

Fe500 S+P% max : 0.075

Note : SAIL TMT-HCR-A : Cu+Cr > 0.40%SAIL TMT-HCR-M : Cu+Mo > 0.40%SAIL TMT-HCR-P : Cu+P > 0.40%# For low alloy steel having Cu, Cr, P etc.

Savings in steel* when using SAIL TMT or SAIL TMT-HCR

Grade Fe 415 Fe 500 Fe 550

Saving in steel compared 40% 44% 47%to IS-2062 plain bar

Saving in steel compared 14% 19%to IS-1786/Fe 415 CTD

* In case of doubly reinforced beams using M15 and M20 grades of cement.

* with modified Rib pattern

High Temperature StrengthSAIL TMT-HCR-A, SAIL TMT-HCR-M, SAIL TMT-HCR-P reinforcement bars exhibit higherthermal resistance even at temperatures up to 600°C. The retention of significant strengthor, in other words, resistance to softening, is attributed to design of steel chemistry, presenceof tempered martensite layer on the rebar surface and absence of any cold worked structuralzone. Thus the thermally hardened SAIL TMT-HCR-A, SAIL TMT-HCR-M, SAIL TMT-HCR-P rebars are ideal for use in places prone to fire hazards.


Tolerance

As per IS 1852/1985

Size Diameter Ovality (max)

5.5, 6 & 7 mm ± 0.50 mm 0.65 mm

8 & 10 mm ± 0.50 mm 0.65 mm

Applications


IS : 2062/1999 Structural applications

IS : 2879/1998 Arc welding electrodes, welding machine wires

SWR-14, SAE-1010 Bolts, nuts, rivets, machine screw, wire nail,fencing wire, wire netting, bright bar and othergeneral engineering applications

SWR-10 SAE-1008 Cable armouring, wire mesh and other lowcarbon applications

Mechanical PropertiesSpecification Grade Yield Strength Tensile Elongation

MPa Strength %MPa

IS 2062/1999 Grade A 250 min 410 min 23 min

IS 2879/1998* Rimming

SWR-14*

SWR-10*

SAE 1008*

SAE 1010*

High Carbon EN-8, EN-9

* Mechanical properties not mandatory

Wire RodsRods in coils

Size in mm Weight kg/m Mill

5.5 0.186 BWRM

6 0.222 BWRM

7 0.302 BWRM

8 0.395 BWRM

10 0.617 BWRM

Abbreviation used : BWRM: Bhilai Wire Rod Mill

Coil Weight : 850 kg per coil

Coil Dimension : Outer diameter -1240/1380 mm; Inner diameter830/956 mm; Height 512/620 mm

Packaging : Each coil is strapped with metallic straps.

Common grades : IS 2062/1999, IS 2879/1998, SWR-14, SWR-10,SAE 1008*, SAE 1010* (* CHQ under development)

Materials are also available in the following foreign specifications :JIS-G-3505-SWRM-10, JIS-G-3112-1991-SR-235, ASTM-A 510M-93, SAE-1015, if sufficient orders are available.


Specification Grade C % Mn % S % P %max max

IS 2062/1999 Grade A 0.23 max 1.50 max 0.05 0.05

IS 2879/1998 Rimming 0.1 max 0.38-0.62 0.03 0.03

SWR-14 0.14 max 0.70 max 0.05 0.05

SWR-10 0.1 max 0.60 max 0.04 0.04

SAE 1008 0.1 max 0.30-0.50 0.05 0.04

SAE 1010 0.08-0.13 0.30-0.60 0.05 0.04

High Carbon EN-8 0.35-0.45 0.60-1.0 0.030 0.035

EN-9 0.50-0.60 0.50-0.80 0.030 0.035

Note : For EN-8 & EN-9, Si 0.1 to 0.35


Coils can also be supplied in 1830 mm width and other sizes, as per mutualagreement.

Inner diameter of coils : 850 mm

Outer diameter of coils : 2300 mm (max)

Coil weight : 29 tonnes max.

Bokaro Steel Plant

Rationalised sizes of Hot Rolled Sheets

Thickness, mm (gauge) Width (mm) Length (mm)

2.00 mm (14) 1000, 1100, 1250 2500

2.50 mm (12), 2.90mm, 1000, 1100, 1250, 2500, 4000, 45003.15 mm (10), 3.55 mm (9), 14004.00 mm (8)

Thickness and width tolerances are as per IS 1852/1985. Closer tolerancescan also be supplied on demand.

Packaging : Bare bundles with cross-wise steel strip. Packet weight:7 - 18 tonnes. Marking : Paint marked on the top sheet of the bundleOR Sticker/label on top sheet of bundle with required details.

Common grades for Hot Rolled Coils and Sheets : IS 10748/1995 gradesI, II, III, API 5L grades A, B, X42, X46, X52, X56, X60, X65, SAIL-WTCR, IS11513/1985 grades O, D, DD, EDD, IS 1079/ 1994 grades O, D, DD, EDD,Medium Carbon Strapping Steel, MC-11,MC-12 HCRS, SAE-1040, SAE –1055, C 30, 40, 50, Medium Silicon Electrical Steel, IS 6240/1999, SAIL HSLPG, SAILMA, IS 2062 grades B/C, IS 5986/1992 Fe 330, 360, 410, 510,SAILRIM, IS 2062/1999 Grade B with copper, SAILCOR/IRSM-41, IS 8500/1992, SAE 1020, SAE 1012, SAE 1541 Auto Chassis Grade: E 34 / 30 / 46 &SAPH 45.

Materials are also available in the following foreign specifications : Forstructural and general purposes- ASTM-A 36/A 569/A 570 Grades 33/40,JISG 3101 SS400, JISG 3131 SPHC, DIN 17100 ST 37.2/ST 44.2, BS4360 Grades 40/43A, EN 10025; For Tube-making and other grades : JISG3132 SPHT 1/2, DIN 1614 Pt. 1/2 ST 22/23/24, SAE 1006, SAE 1018 orequivalents, if sufficient orders are available.

Hot Rolled Coils, Sheets and SkelpRourkela Steel PlantRationalised sizes of Hot Rolled Coils

Thickness (mm) Width (mm)2.0 910, 930, 1010, 1020, 10402.2 910, 930, 1010, 1020, 1030, 10402.3 910, 930, 1010, 1020, 1030, 10402.5 910, 930, 1010, 1020, 1030, 1040, 11302.8 910, 930, 1010, 1020, 1040, 1100, 1130, 12503.1 910, 930, 1010, 1020, 1040, 1130, 1250, 13103.5 910, 930, 1010, 1020, 1040, 1130, 1250, 13103.7 910, 930, 1020, 1030, 1040, 1130, 1250, 13104.1 910, 930, 1020, 1030, 1040, 1130, 1250, 1310, 1400, 14203.8, 4.3, 4.6, 4.8 910, 930, 1020, 1040, 1130, 1250, 1310, 1400, 14205.0, 5.6, 6.0 910, 930, 1040, 1130, 1250, 1310, 1400, 14206.6, 7.4 910, 930, 1040, 1050, 1130, 1250, 1310, 1380, 1400, 14207,8,9,10 910, 930, 1040, 1130, 1250, 1310, 1400, 142011.5 910, 930, 1040, 1130, 1250, 1310, 1400, 1420Coils can also be supplied in other width/thickness combination, as permutual agreement.Inner diameter of coils : 760 mm. Coil weight : 8 -17 tonnesBokaro Steel PlantRationalised sizes of Hot Rolled Coils

Thickness (mm) Width (mm)1.2, 1.25, 1.4 930, 9401.6 930, 10301.8 930, 1030, 11302.0 930, 1030, 1130, 1250, 13102.2 930, 1030, 1130, 1250, 1310, 14002.5 930, 1030, 1130, 1250, 1310, 14002.8 930, 1030, 1130, 1250, 1310, 14003.0 930, 1030, 1130, 1250, 1310, 14003.7 930, 1030, 1130, 1250, 1310, 14003.9 930, 1030, 1130, 1250, 1310, 14004.3 930, 1030, 1130, 1250, 1310, 1400, 15504.5 930, 1030, 1130, 1250, 1310, 1400, 15504.8 930, 1030, 1130, 1250, 1310, 1400, 15505.0 930, 1030, 1130, 1250, 1310, 1370, 1400, 1550, 17305.6 930, 1030, 1130, 1250, 1310, 1370, 1400, 1550, 17306.0 930, 1030, 1130, 1250, 1310, 1370, 1400, 1550, 17306.7 930, 1030, 1130, 1250, 1310, 1370, 1400, 1550, 17307.0 930, 1030, 1130, 1250, 1310, 1370, 1400, 1550, 17308.0 930, 1030, 1130, 1250, 1310, 1370, 1400, 1550, 17308.6 930, 1030, 1130, 1250, 1310, 1370, 1400, 1550, 17309.7 930, 1030, 1130, 1250, 1310, 1370, 1400, 1550, 173010 930, 1030, 1130, 1250, 1310, 1370, 1400, 1550, 173011,12,14,16 930, 1030, 1130, 1250, 1310, 1370, 1400, 1550


Applications (Hot Rolled Coils, Sheets and Skelp)Specification Application

IS 10748/1995, Grades I, II, III, IV, V Tube making

SAIL-WTCR, IS 11513/1985, Cold reducing segmentGrades O, D, DD, EDD,SAIL DRAW (EDD with CBT)

IS 1079/ 1994 General structural applicationsGrades O, D, DD, EDD

SAILRIM Manufacture of cycle rims

SAE 1012 Manufacture of wheel disc andcold formed products

SAIL PROP (SAE 1020) Manufacture of propeller shaft

SAIL PREFAB (SAE 1020 Spl.) Manufacture of Prefabricated structures

IS 2062/1999, Grade B with Copper, Manufacture of corrosion resistantSAILCOR/ IRSM-41/HCRS engineering products

SAILMA, IS 2062/1999, Fabrication of engineering structurals,Grades B, C, IS 5986/1992, Manufacture of Hamilton and other poles,Fe 330, 360, 410, 510 flanging applications

Strapping quality (IRS P 41) Strapping for packaging

SAE 1541 Manufacture of fork and spokesfor two wheelers

Medium Carbon Grades Chains, hair clip, sprocket, clutch plate,(MC 11, MC-12, C-30, 40,45, 50 hacksaw blade etc.SAE 1040, SAE 1045, SAE 1055)

Medium silicon electrical steel Manufacture of electrical equipment

IS 6240/1999 Domestic / Auto LPG Cylinders

SAIL HS LPG Export quality LPG Cylinders(JISG 3116, EN 10120)

SAIL FORM 34, 38, 46 Fabrication of long & cross members for (E34, E 38, E 46/ BSK 46) LCV, MCV and HCV

SAIL SUPER FORM 45 Long and cross member of LCV & MCV,(JISG 3113, SAPH 45) wheel disc, wheel rim and other structural

components of passenger car

API 5L, Grades A, B, X42, X46, Manufacture of tubes & pipes mostly for oilX52, X56, X60, X65 and gas sector

HR Sheets for Conventional LPG Cylinders

Thickness (mm) Width (mm) Length (mm)

2.9 1240 2480

2.8 1250 2500

Sheets can also be supplied in the following sizes on mutual agreement :2.9 x 1360 x 2720 mm, 2.9 x 1270 x 2540 mm, 3.0 x 1360 x 2700 mm

Other sizes of hot rolled coils and sheets can be supplied as per mutualagreement.

HR Coils for LPG Cylinders

Grade Thickness (mm) Width (mm)

Conventional 2.9 1090, 1160, 1685

SAIL HS LPG 2.2 - 4.0 1090, 1160, 1250

Durgapur Steel Plant

Rationalised sizes of Skelp

Width (mm) Thickness (mm)

147 2.7, 3.0, 3.7

166 2.5, 3.0

181 4.1, 4.3

184 2.5, 2.7, 3.0, 3.3, 3.4, 3.8

196 2.5, 2.8, 3.0

205 2.5, 2.8, 3.0, 3.4, 3.7

212 2.5, 2.8, 3.0, 3.4, 3.7

230 3.0, 3.4, 3.7

234 3.0, 3.4, 3.7

Any customised dimension of width 147 mm to 252 mm and thickness2.5 mm to 4.5 mm can be supplied as per mutual agreement.

Coil weight : 0.88 - 1.24 tonnes

Inner diameter : 550 mm Outer diameter : 1100 - 1300 mm

Common Grades : Skelp is produced in IS 10748/1995, Grades I, II (Sk),IS 11513/1985 and Medium Carbon.

Packing : Bare packing with 4 steel straps through coil eye.

Tags : Cast details, specifications, etc.


Rolling and Cutting Tolerance as per IS:1852 - 1985Tolerance on Width of Strip Supplied with as Rolled Edges

Width (mm) Tolerance (mm)Upto 250 + 4, - 0> 250 to 600 + 6, - 0> 600 to 800 + 10, - 0> 800 to 1250 + 30, - 0> 1250 to 1550 + 35, - 0> 1550 to 1850 + 40, - 0

Tolerance on Thickness of Strip up to and including 500 mmwidth

Width (mm) Tolerance on thickness (mm)

Upto 200 ± 0.20> 200 to 320 ± 0.23>320 to 400 ± 0.25> 400 to 500 ± 0.30

Tolerance on Thickness for Strip above 500 mm width

Width (mm) Tolerance on thickness (mm)

> 1.6 to 2 > 2 to 3 > 3 to 5 > 5 to 8 > 8 to 10 500 to 1250 ± 0.18 ± 0.20 ± 0.25 ± 0.30 ± 0.35 1250 to 1550 ± 0.20 ± 0.25 ± 0.30 ± 0.35 ± 0.40 1550 to 1850 ± 0.22 ± 0.28 ± 0.35 ± 0.40 ± 0.40

Rolling and Cutting Tolerance for HR Sheetsas per IS: 1852 - 1985

Width (mm) Tolerance (mm) Length (mm) Tolerance

Up to 1250 + 6 , - 0 Up to 2500 + 25 mm, - 0 mm

> 1250 to 1550 + 0.5%, - 0 Over 2500 + 1% of the length(max 70 mm), - 0 mm

Thickness tolerance for sheets as per table of HR CoilsTolerance on WeightThickness (mm) ToleranceUp to 1.25 ± 9 %1.25 to 1.6 ± 8 %1.6 to 4.0 ± 7 %Note: Cutting tolerance for all lengths for all products exceptplate, strip and sheet shall be + 100 mm, - 0 mm.Closer tolerances can be supplied on mutual agreement.

Chemical CompositionSpecification Grade C % Mn % P % S % Si %

max max max max max

IS 10748/ 1 0.10 0.50 0.040 0.040

1995 II 0.12 0.60 0.040 0.040III 0.16 1.20 0.040 0.040IV 0.20 1.30 0.040 0.040V 0.25 1.30 0.040 0.040CE: 0.45 max for grades IV and V

WTCR - 0.06 0.25 0.025 0.025 0.04IS 11513- 0 0.15 0.60 0.055 0.0551985/ IS D 0.12 0.50 0.040 0.0401079-1994 DD 0.10 0.45 0.035 0.035

EDD 0.08 0.40 0.030 0.030SAIL DRAW EDD 0.04 0.15 0.015 0.015 0.03

(CBT) Al:0.025-0.06

SAILRIM 0.07-0.11 0.30-0.45 0.040 0.040SAE 1012 0.10-0.15 0.30-0.60 0.030 0.035 0.10 maxSAIL PROP SAE1020 0.17-0.23 0.3-0.6 0.04 0.03SAIL PREFAB SAE1020 0.23 max 1.35 max 0.04 0.03 Nb:0.005 -0.05

spl

IS 2062/1999 A 0.23 1.50 0.050 0.050 0.4 maxB 0.22 1.50 0.045 0.045 0.4 maxC 0.20 1.50 0.040 0.040 0.4 max

CE Max 0.42 for Gr A, 0.41 for GrB, 0.39 for GrC Cu between 0.2 and 0.35% for copper bearingquality. Deoxidation mode - Grade A : Semi-killed or killed, Grade B&C : Killed

SAILCOR 0.10 0.25-0.45 0.075 0.030 0.28-0.72(IRSM41) -0.140

Cr 0.35-0.60, Ni 0.20-0.47, Cu 0.30-0.60, Al 0.03 max

HCRS 0.15 0.25-0.8 0.07 0.03 0.28-0.50(Cu –P) -0.15 (Cu 0.20 min)

IS 5986 Fe 330 0.17 1.00 0.045 0.045

Fe 360 0.17 1.20 0.045 0.045

Fe 410 0.20 1.30 0.045 0.045

Fe 510 0.20 1.50 0.045 0.045

CE 0.42 max for Fe 410 and 0.45 max for Fe 510

SAILMA 300 0.25 1.50 0.055 0.055

300 HI 0.20 1.50 0.040 0.040

350 0.25 1.50 0.040 0.040

350 HI 0.20 1.50 0.040 0.040

Nb+V+Ti 0.20% max

For semikilledquality Sicontentshall be0.08% max


Specification Grade C % Mn % P % S % Si %max max max max max

Strapping IRS P 41 0.25-0.45 1.20-1.45 0.040 0.040 0.15-0.35Quality

SAE 1541 0.36-0.44 1.30-1.60 0.030 0.030 0.15-0.35Cr :0.03-0.10

Medium MC 11 0.35-0.45 0.5-0.7 0.040 0.04Carbon

MC 12 0.50-0.60 0.5-0.7 0.040 0.04 0.15-0.35

C 30 0.25-0.35 0.60-0.90 0.035 0.035 Al 0.02 min

C 40 0.35-0.45 0.60-0.90 0.040 0.040

C 50 0.45-0.55 0.60-0.90 0.040 0.040

SAE1040 0.36-0.44 0.6-0.9 0.04 0.040

SAE1055 0.52-0.60 0.6-0.9 0.04 0.040

Medium Si 0.05 0.40 0.025 0.025 0.30-1.50ElectricalSteel

IS 6240/1999 0.16 0.30 min 0.030 0.030 0.25Al 0.02 min

SAIL HS LPG SG 255 0.20 max 0.30 min 0.04 0.040 -JISG 3116

SG 295 0.20 max 0.10 max 0.04 0.040 0.35

SAIL HS LPG P265NB 0.19 max 0.40 min 0.025 0.015 0.25EN 10120

P310NB 0.20 max 0.70 min 0.025 0.015 0.50

Nb 0.05 max Ti 0.03 max for SG 295 and P310 NB

Specification Grade C % Mn % P % S % Si %max max max max max

SAILFORM 34 E34 0.10 0.70 0.030 0.030 0.20

SAILFORM 38 E38 0.10 1.00 0.030 0.030 0.40

SAILFORM-46 E 46/ 0.12 1.2 0.025 0.025 0.4BSK46

SAIL SUPER SAPH 0.14 1.2 0.015 0.010 0.15FORM 45/440JIS G 3113

Nb +Ti 0.10 Max for all SAIL FORM Grade

API-5L A 0.22 0.90 0.030 0.030

B 0.26 1.20 0.030 0.030

X42 0.26 1.30 0.030 0.030

X46 0.26 1.40 0.030 0.030

X52 0.26 1.40 0.030 0.030

X56 0.26 1.40 0.030 0.030

X60 0.26 1.40 0.030 0.030

X65 0.26 1.45 0.030 0.030

X70 0.26 1.65 0.03 0.03

Nb + V + Ti < 0.15%



Specification Grade Yield Ultimate Elongation InternalStrength Tensile % diameter

Strength of bend

MPa MPa Up to Abovemin 3mm 3mm

IS 10748/1995 I 170 290 30 TII 210 330 28 2TIII 240 410 25 2TIV 275 430 20 3TV 310 490 15 3T

WTCR 35 IS 1079 O 2T 1994 D 240-400 25 T

DD 260-390 28 CloseEDD 260-380 32 Close*Up to 3 mm GL 5.65√S0, above 3 mm GL=200mm

SAIL DRAWSAIL RIMSAE 1012SAIL PROP SAE 1020 310-320 440 15SAIL SAE 1020 345min 450 min 21PREFAB spl.IS 2062/1999 A 250 410 23 3T

B 250 410 23 2TC 250 410 23 2T

SAILCOR 340 480 22 THCRS (Cu–P) 340 480 22 TIS 5986/1992 Fe 330 205 330-440 18 25 T

Fe 360 235 360-470 18 25 TFe 410 255 410-520 17 23 2TFe 510 355 510-620 16 20 2T

SAILMA 300 300 440-560 20 3T300 HI 300 440-560 21 3T350 350 490-610 20 3T350 HI 350 490-610 21 3T


Specification Grade Yield Ultimate Elongation InternalStrength Tensile % diameter

Strength of bend

MPa MPa Up to Abovemin 3mm 3mm

StrappingQualitySAE 1541Medium MC11/12Carbon SAE1040/

1055

C 30 55% of UTS 500-600 21C 40 580-680 18C 50 660-780 13

Med Si ElecIS 6240/1999 240 350-450 25 TSAIL HS LPG SG 255 255 400 28JISG 3116

SG 295 295 450 26SAIL HS LPG P265NB 265 410-500 24EN 10120

P310NB 310 460-550 28SAIL FORM 34 E34 333 392 27 CloseSAIL FORM 38 E38 372 441 25 0.5TSAIL FORM46 E46/ 451 490 21 0.5T

BSK-46SAIL SUPER JISG 3113 304( t<6mm) 441 34% (t<6mm) GL: 50mmFORM 294( t : 6 to 32% (t: 6-8 mm)SAPH 45 SAPH 8 mm)

45/440

API-5L A 207 331B 241-448 414-758X42 290-496 414-758X46 317-524 434-758X52 359-531 455-758X56 386-544 490-758X60 414-565 517-758X65 448-600 531-758X70 483-621 565-758Note : These are pipe properties. Hot rolled plate/coilproperties are to be mutually agreed upon by producer andpipe manufacturers.

% elongation1.944A. 0.2/ U0.9(GL:50.8mm) for allAPI GradesA :Crosssectionalarea in mm2

U : MinimumUTS in MPa


PlatesBhilai Steel Plant

Rationalised sizes of Plates from Plate Mill

Length (mm)

Thick- Width (mm)ness(mm) 1600 1800 2000 2200 2500 2800 3000 3200

8 6300930012500

10 9300 6300930012500

12 6300 6300 6300 71009300 9300 8000 1000012500 12500 12500

14 9300 5600 50006300 56007100 63009000 71009300 800012500 9000

12500

16 7100 5600 5000 56009300 7100 6300 7100

9000 8000 80009300 9000 1000012500 12500

18 5600 5600 5000 5600 50007100 6300 6300 7100 63009300 7100 8000 8000 9000

8000 9000 10000 93009000 12500 10000930012500

Length (mm)


20 5600 5000 5000 5600 5000 56007100 5600 5600 7100 6300 80009300 6300 6300 8000 9000 9000

7100 8000 10000 9300 93009000 9000 100009300 1250012500

22 5000 5000 5600 5000 5600 50005600 5600 7100 6300 6300 56006300 6300 8000 7100 8000 71007100 8000 10000 9300 9000 80009000 9000 10000 9300 93009300 1250012500

25 5000 5000 5000 5600 5000 6300 6300 56005600 5600 6300 6300 5600 7100 12500 63006300 7100 9000 8000 7100 12500 125008000 10000 9300 9000 800012500 10000 9300

28 5000 5000 5600 5000 6300 5600 5600 50005600 6300 8000 5600 7100 6300 6300 56007100 9000 9000 7100 12500 12500 10000 930010000 9300 9300 8000 12500 10000

10000

32 5000 5000 5000 5000 5600 5000 5000 50006300 5600 7100 6300 6300 5600 9000 80009000 8000 8000 7100 12500 9300 9300 90009300 9000 12500 10000 10000 930010000 10000

36 5000 5000 6300 5600 5000 5000 8000 71005600 7100 7100 6300 5600 8000 9000 80008000 8000 12500 12500 9300 9000 9300 90009000 10000 9300


Length (mm)


40 5000 6300 5600 5000 5000 7100 7100 63007100 7100 6300 5600 9000 8000 8000 71008000 12500 12500 10000 9300 9000 8000

10000 930010000

45 6300 5600 5000 5000 8000 7100 6300 63007100 6300 5600 9300 9000 8000 7100 710012500 12500 10000 10000 9300

50 5600 5000 5000 8000 7100 6300 5600 56006300 5600 9000 9000 8000 7100 6300 630012500 9300 9300 9300 7100

10000 10000

56 5000 5000 8000 7100 6300 5600 5000 50005600 9300 9000 8000 7100 6300 5600 56009300 10000 930010000

63 4500 8000 7100 6300 5600 5000 4500 45005000 9300 8000 7100 6300 5600 5000 50009000930010000

75 7100 6300 5600 5000 4500 4500 45008000 7100 6300 5600 5000 5000

80 6300 5600 5000 4500 45007100 6300 5600 5000 50008000 7100 6300 5600

90 6300 5600 5000 50006300 5600

100 5000 5000 50005600 56006300

110 5000 50005600

120 45005000

Note: Plates above 40 mm will be flame cut.

Rourkela Steel Plant

Rationalised sizes of Plates from Plate Mill

Length (mm)

Thickness Width (mm)(mm)

1500/1600 2000 2500

8,10,12 4500, 5000, 5600, 4500, 5000, 5600, 4500, 5000, 5600,6300, 7100, 8000, 6300, 7100, 8000, 6300, 7100, 8000,9000, 9300, 9000, 9300, 10000, 9000, 9300, 10000,10000, 12500 12500 12500

14, 16, 4500, 5000, 5600, 4500, 5000, 5600, 4500, 5000, 5600,18, 20 6300, 7100, 8000, 6300, 7100, 8000, 6300, 7100, 8000,

9000, 9300, 9000, 9300, 10000, 9000, 9300, 10000,10000, 12500 12500 12500

22, 25 4500, 5000, 5600, 4500, 5000, 5600, 4500, 5000, 5600,6300 7100, 8000, 6300, 7100, 8000, 6300, 7100, 8000,9000, 9300, 9000, 9300, 10000, 9000, 9300, 10000,10000, 12500 12500 12500

28 4500, 5000, 5600, 4500, 5000, 5600, 4500, 5000, 5600,6300, 7100, 8000, 6300, 7100, 8000, 6300, 7100, 8000,9000, 9300, 9000, 9300, 10000, 9000, 9300, 1000010000, 12500 12500

32 4500, 5000, 5600, 4500, 5000, 5600, 4500, 5600,6300, 7100, 8000, 6300, 7100, 8000, 6300, 7100, 80009000, 9300, 9000, 9300, 10000,10000, 12500 12500

36 4500, 5000, 5600, 4500, 5000, 5600, 5600, 6300, 7100,6300, 7100, 8000, 6300, 7100, 8000, 80009000, 9300, 10000, 9000, 9300, 1000012500

40 4500, 5000, 5600, 4500, 5000, 5600, 5600, 6300, 71006300, 7100, 8000, 6300, 7100, 8000,9000, 9300, 10000, 900012500


Packing & Supply Condition

Plates are supplied in bare packaging condition. Plates are normalised asper the requirements of specification. Thickness wise supply conditionsare mentioned here :

Thickness (mm) Supply Condition

8 -20 mm Sheared condition

>20-63 mm With gas cut edges

Length (mm)

Thickness Width (mm)(mm)

1500/1600 2000 2500

45 4500, 5000, 5600, 5600, 6300, 7100, 5600, 63006300, 7100, 8000, 80009000, 9300, 10000

50 4500, 5000, 5600, 5600, 6300, 7100, 5000, 56006300, 7100, 8000, 80009000, 9300, 10000

56 4500, 5000, 5600, 5600, 63006300, 7100, 8000

63 5600, 6300, 7100, 56008000

Note : 1. For 8 mm order acceptable in minimum width of 1600 mm.

2. For normalised plates minimum length to be 6300 mm.

3. Plates can be supplied with random ultrasonic testing (offline)upto maximum 50 mm thickness.

4. Plates in other sizes can be supplied as per mutualagreement.


Rourkela Steel Plant

Rationalised sizes of Plates from Hot Strip Mill


5, 6, 7, 8, 9, 10 1000,1250, 1400 5000, 6300, 10000

Sizes of Chequered Plates of RSP

5, 6, 7, 8, 9, 10 900 to 1200,1201 to 1350 5000,10000

Note : 1. Plates are supplied in Mill Edge conditions(Width + 20 to + 50 mm)

2. Chequered plates are supplied with tear drop pattern

Bokaro Steel Plant

Rationalised sizes of HR Plates


5, 6, 7, 8, 10 1000, 1100, 1250, 4500, 5000, 5600,1400, 1500, 1600, 6300, 80001700, 1800

ApplicationsSpecification Application

IS 2062/1999 (Grades A,B,C), General structuralsASTM-A-36 M, DIN 17100, IS 1977/1996

IS 5986/1992, Fe 330, 360, 410, 510 Flanging and formingoperations

SAILCOR (IRS M-41) HCRS (Cu+P), Atmospheric corrosionASTM-A-588M, IS 2062 with Copper, resistance

SAIL BoilerIS 2002/1992, ASTM-A-285 M (Grade C), Boilers and pressureASTM-A-515 M, ASTM-A-516 M, vesselsASTM-A-517 M (Grade F), ASTM-A-537 M(Class 1), ASTM-A-204 (Grade B),DIN 17155 (Grade H1), EN 10028,BS 1501

ASTM-A-517 (Grade F) Penstock

SAILHARD Abrasion Resistant

SAILMA 300, 350,410, 450 High TensileIS:8500/1992, DIN 17100 52.3IS:5986/1992, Fe 510

SAIL MarineIS 3039, Lloyds Grade A, B Ship BuildingABS Grade A, NCD 1431

API 5L, Grade A, B, X42, X46, X52, Oil and gas pipelineX56, X60, X65 manufacturing

Chequered Plates conforming to Industrial FlooringIS 3502/1994*

Dead Soft Quality Galvanising Pots andspecial engineeringapplication

SAIL Form 34/38/46 Fabrication of long & crossSAIL Super Form 45 (SAPH 45) members in auto sector

SAIL HITEN 690 AR ATM Safe,Earth Moving Equipment

SAIL SPP 400/700 (Hardox 400/ Earth Moving EquipmentWeldox 700)

* Base material as per IS 2062/1999 and IS 1977/1996.


Plates manufactured by different steel plants as per followingspecifications

Bhilai Steel Plant Rourkela Steel Plant Bokaro Steel Plant

IS 2062/1999 IS 2062/1999 IS 2062/1999

Grades B, C Grades B, C Grades B, CIS 1977/1996 ASTM-A-36M SAILMA

ASTM-A-36M SAILMA 300HI/350HISAILMA 300HI/350HI/410HI/450HI E38/ E34300HI/350HI/410HI/ Wheels IS 8500/1992

450 HI Lloyds Grades A, B, D SAILCOR/ HCRSIS 2002/1992 IS 2002/1992 IRSM-41ASTM-A-588M ASTM-A-285 M BSK-46

Grade A Grade C SAPH-45ASTM-A-515/516 M Dead Soft Quality IS1977-Grades 60/65/70 LO-Pearl Fe 290/330/370

ASTM-A-204M IS 8500/1992 IS 2002Grade B IS 5986/1992 IRS Gr. AASTM-A-537M IS 3502 E-550, E-500, E-450

Class I ASTM-A-517 ASTM AA 36BS1501/EN 10028 Grade F JIS 3101 SS 4011SAILHARD IS 3039/1988 IS 5986ABS Grade A SAPH 440 DIN 17100

Lloyds Grades A, B ASTM-A-537 M Cl I IS 6240NCD 1431 ASTM-A-515/ 516 MNE S 791 Grades- 60/65/70

GOST 5521 BSK-46DIN 17100 API 5L gradeDIN 17155 A, B, X 42,

API 5L A, B, X-42, X-46, X46, X52, X56X-52, X-56, X-60, X-65 X60, X65IS 8500/1992 DIN St 42.2/52.3

IS 5986/1992SAILCOR/IRSM-41 SAIL SPP 400/700IS 3039/1988

HCRS (Cu-P)HCRSSAIL HITEN 690 AR

Rolling and cutting tolerance for plates(as per IS 1852/85)

WidthThe tolerances on width of plate shall be as follows :

Length Width Thickness Tolerance(mm) (mm) (mm) on Width

Up to and Up to and Up to and - 0, +10mmincluding 8000 including 2000 including 20

Over 20 -0, +15 mm

Up to and Over 2000 Up to and - 0, +0.5% of widthincluding 8000 including 20

Over 20 -0, +20 mm

Over 8000 All widths Up to and - 0, +0.2% of lengthincluding 20Over 20 -0, +0.3 % of length

Note 1 : Plates over 20 mm in thickness may be supplied with either as rolledor gas-cut edges. In case of Bhilai plates, above 40 mm thick plates shall besupplied with flame cut edges. The tolerances on width in such cases shall besubject to arrangement between the purchaser and the supplier.

Note 2 : In case plates below 20 mm in thickness are supplied in as- rolledcondition the tolerances shall be mutually agreed to between the purchaserand the supplier.

ThicknessThe tolerances on thickness shall be as follows :

Thickness Tolerance in percentage ofnominal Thickness

Less than 8 mm +12.5, - 5.0

From 8 mm up to +7.5, - 5.0& including 12 mm

Over 12 mm ± 5.0

The thickness shall be measured at the following points(a) One at each corner of the plate.(b) One in the middle of the width, and(c) One in the middle of the length.These measurements shall be 25 mm away from the edge and at pointsrandomly chosen. The thickness measured at each of these points shallsatisfy the tolerances specified above.


Length

The tolerances on length of plate produced in non-continuous mill shall beas follows :

Length (mm) Thickness (mm) Tolerance onlength

Over Up to andincluding

— 2200 Up to and including 20 - 0, +10 mmOver 20 - 0, +15 mm

2200 3000 Up to and including 20 - 0, +0.5%Over 20 - 0, +15 mm

3000 6300 Up to and including 20 - 0, +0.5 %Over 20 - 0, +0.5 %

6300 8000 Up to and including 20 - 0, +35 mmOver 20 - 0, +0.5 %

8000 — Up to and including 20 - 0, +35 mmOver 20 - 0, +40 mm

The tolerance for length of plates from 5 to 10 mm thickness when producedin continuous mill shall be as follows

Length (mm) Tolerance

Up to and including 2500 +25 mm, - 0 mm

Over 2500 +1 percent of the length subject toa maximum of 70 mm, - 0 mm

Note : Plates over 32 mm in thickness may be supplied with either as-rolledor gas-cut edges. In case of Bhilai plates, above 40 mm thick plates shallbe supplied with flame cut edges. The length tolerance in such cases shallbe subject to agreement between the purchaser and the supplier.

Chemical CompositionSpecification Grade C % Mn % P % S % Si % CE

max max max max max

IS 2062/ A 0.23 1.50 0.050 0.050 0.40x 0.421999

B 0.22 1.50 0.045 0.045 0.40 0.41

C 0.20 1.50 0.040 0.040 0.40 0.39

Mode of deoxidation - Grade A : Killed or semi-Killed,Grade B & C : Killed. Cu between 0.2 and 0.35% for Copperbearing quality.

IS 1977/ Fe 290 0.25 1.25 0.055 0.0551996

Fe 330 0.25 1.25 0.055 0.055

Fe 370 0.25 1.25 0.055 0.055

SAILMA Nb+V+Ti%=0.20max

300 0.25 1.5 0.055 0.055

300 HI 0.20 1.5 0.040 0.040

350 0.25 1.5 0.055 0.055

350 HI 0.20 1.5 0.040 0.040

410 0.25 1.5 0.055 0.055

410 HI 0.20 1.5 0.040 0.040

450 0.25 1.5 0.055 0.055

450 HI 0.20 1.5 0.040 0.040

IS 8500/ Fe 440 0.20 1.30 0.040 0.040 0.45 0.401991

Fe 440 B 0.20 1.30 0.040 0.040 0.45 0.40

Fe 490 0.20 1.50 0.040 0.040 0.45 0.42

Fe 490 B 0.20 1.50 0.040 0.040 0.45 0.42

Fe 540 0.20 1.60 0.040 0.040 0.45 0.44

Fe 540 B 0.20 1.60 0.040 0.040 0.45 0.44

Fe 570 0.22 1.60 0.040 0.040 0.45 0.46

Fe 570 B 0.22 1.60 0.040 0.040 0.45 0.46

Fe 590 0.22 1.80 0.040 0.040 0.45 0.48

Fe 590 B 0.22 1.80 0.040 0.040 0.45 0.48

Micro alloying elements like Nb, V, Ti or B shall be added singly orin combination and total micro alloying elements shall not be morethan 0.20%


Mechanical PropertiesSpecification Grade Yield Strength Ultimate Tensile Elongation Internal

MPa Min Strength MPa %min GL diameterMin 5.65√√√√√S0 of bend

mm <20 20-40 >40

IS 2062/ A 250 240 230 410 23 3T1999

B 250 240 230 410 23 <25mm >25mm2T 3T

C 250 240 230 410 23 2T

Charpy Impact energy: 27J. For Grade B min Charpy impact energy to be guaranteed at00 C, if agreed. The impact properties for Grade C material guaranteed at any one of thethree temperatures 00C or -200C or -400C as specified by the purchaser.

IS 1977/ Fe 290 165 290-390 23 2T1996

Fe 330 170 330-340 23 3T

Fe 370 215 370-470 23 3T

SAILMA 300 300 440-560 20 3T

300 HI 300 440-560 21 3T

350 350 490-610 20 3T

350 HI 350 490-610 21 3T

410 410 540-660 19 3T

410 HI 410 540-660 20 3T

450 450 570-720 18 3T

450 HI 450 570-720 19 3T

Charpy Impact energy: 40J at 0°C for 300HI, 40J at 00 C, 30J at -200 C for 350 HI, 35J at 00

C, 25J at -20°C for 410 HI, 30J at 0°C , 20J at -20°C for 450 HI. Impact will be given for any onetemperature. For 450HI impact is for >12mm. For <12mm impact to be given only if specified.

IS 8500/ m m <16 16-40 41-63 >63 <12 12-251991

Fe 440 300 290 280 * 440 22 2T 3T

Fe 440 B 300 290 280 * 440 22 2T 3T

Fe 490 350 330 320 * 490 22 2T 3T

Fe 490 B 350 330 320 * 490 22 2T 3T

Fe 540 410 390 380 * 540 20 2T 3T

Fe 540 B 410 390 380 * 540 20 2T 3T

Fe 570 450 430 420 * 570 20 2T 3T

Fe 570 B 450 430 420 * 570 20 2T 3T

Fe 590 450 430 420 * 590 20 2T 3T

Fe 590 B 450 430 420 * 590 20 2T 3T

* By arrangement. ** Charpy Impact energy - Min Values 50J at RT, 30J at -200 C for Fe440B, 50J at RT, 25J at -200 C for Fe 490B & Fe 540B, 45J at RT, 20 J at -200 C for Fe570B & Fe 590 B. RT= Room Temperature.


max max max max maxASTM-A-36 0.25 0.80- 0.04 0.05 0.15-

1.20 0.40

IS 5986/1992 Fe 330 0.17 1.00 0.045 0.045 Nb+V

Fe 360 0.17 1.20 0.045 0.045 +Ti

Fe 410 0.20 1.30 0.045 0.045 0.42 0.20%

Fe 510 0.20 1.50 0.045 0.045 0.45 max

ASTM- A 0.19 0.80- 0.040 0.050 0.30-A-588 M 1.25 0.65

Al 0.02 min, Cr 0.40-0.65, Ni 0.40 max, Cu 0.25-0.40, V 0.02-0.10

DIN 17100 ST 52.3 0.20-0.22 1.6 0 0.040 0.040 0.55 Al 0.02 min

HCRS 0.15 0.25-0.8 0.07- 0.03- 0.28 Cu 0.2 min(Cu+P) 0.15 -0.50SAILCOR 0.10 0.25- 0.075- 0.03 0.30-(IRS M-41) 0.45 0.140 0.60

Al 0.03 max, Cr 0.35-0.60, Ni 0.20-0.47, Cu 0.30-0.60 V 0.05 maxIS 2002/ 1 0.18 0.50- 0.035 0.040 0.15- 0.44 Cu 0.10%1992 1.20 0.35 max,

2 0.20 0.50- 0.035 0.040 0.15- 0.44 Al 0.022%1.20 0.35 max

3 0.22 0.50- 0.035 0.040 0.15- 0.441.20 0.35

ASTM-A-285 M C 0.28 0.90 0.035 0.035

ASTM-A- 515M 60 0.24/ 0.90 0.035 0.035 0.15- Al 0.02 %0.27 0.40 max

65 0.28/ 0.90 0.035 0.035 0.15-0.31 0.40

70 0.31/ 1.20 0.035 0.035 0.15-0.33 0.40

ASTM-A-516M 60 0.21/ * 0.035 0.035 0.15-0.23 0.4

65 0.24/ 0.85- 0.035 0.035 0.15-0.26 1.2 0.4

70 0.27/ 0.85- 0.035 0.035 0.15-0.28 1.2 0.4 Al 0.02 min

* For grade 60 for thickness 12.5 mm and below Mn %0.60-0.90, for thickness >12.5 mm Mn % 0.85-1.20

ASTM-A-537M Cl 1 0.24 0.7- 0.035 0.035 0.15-1.60 0.50

Al 0.02 min, Cr 0.25 max, Ni 0.25 max, Cu 0.35 max, Mo 0.08 max

DIN 17155 H1 0.16 0.40- 0.035 0.030 0.351.20

Al 0.02 %min, Cr 0.25% max, Ni 0.30% max, Cu 0.30% max,Nb 0.01% max, V 0.03% max , Ti 0.03% max, Mo 0.10% max

Micro alloyed withNb/V if required


Mechanical PropertiesSpecification Grade Yield Ultimate Tensile Elongation Internal

Strength Strength % min GL diameterMPa Min MPa Min 5.65√S0 of bend

ASTM-A-36 250 400-550 200mm-1850mm-21

IS 5986/ >12mm >12mmFe 330 205 330-440 25 T 2TFe 360 235 360-470 25 T 2TFe 410 255 410-520 23 2T 3TFe 510 355 510-620 20 2T 3T

ASTM-A < < 200 50 -20 < 20 > 25- 588M mm mm mm < 25 < 40

A 345 485 16 19 T 1.5T 2TDIN 17100 ST 52.3 <16mm >16<40 >40<63

355 345 335 490- 18630

Charpy Impact energy 27J at –20 0 C

SAILCOR(IRSM-41) 340 480 22 T<16mm >16<40 >40>60

IS 2002/ 1 235 225 215 360- 24 2T1992 480

2 265 255 245 410- 22 2T530

3 290 285 280 460- 21 3T580

200 50 < 25 >25 <40mm mm mm mm

ASTM-A C 205 385-515 23 27 1T 1.5T-285MASTM-A 60 220 415-550 21 25 T 1.5T-515 M 65 240 450-585 19 23 1.5T 2T

70 260 485-620 17 21 2T 2TASTM-A 60 220 415-550 21 25 T 1.5T516 M 65 240 450-585 19 23 1.5T 2T

70 260 485-620 17 21 2T 2TCharpy Impact energy 18 J for Gr 60&65 at - 51oC and 20J for Gr 70 at- 46oC for -25 mm; 18J for Gr 60&65 at - 46oC and 20J for Gr 70 at - 40°Cfor >25 -50.

ASTM-A- Class 1 345 485-620 18 22 -32 1.5T537M >32 2TDIN 17155 H1 235 for 225 for 360-480 24

<16mm >16<40mm

Charpy Impact energy 31J at 00 C

For ASTM-A-588M/ 285M/ 204M/ 515M/ 516M/ 537 M & DIN 17100Bend Test is a supplementary requirement

1992

HCRS(Cu+P)


max max max max max

ASTM-A B 0.20/ 0.90 0.035 0.035 0.15--204M 0.23 0.40

Mo 0.45 - 0.60%

ASTM-A -517 F 0.1-0.2 0.6-1.0 0.035 0.035 0.15-0.35

Ni 0.7-1.0, Cr 0.4-0.65, Mo 0.4-0.6, V 0.03-0.08, Cu 0.15- 0.50, Bo 0.0005-0.0006

API-5L A 0.22 0.90 0.030 0.030

B 0.26 1.20 0.030 0.030

X-42 0.26 1.30 0.030 0.030

X-46 0.28 1.40 0.030 0.030

X-52 0.28 1.40 0.030 0.030

X-56 0.26 1.40 0.030 0.030

X-60 0.26 1.40 0.030 0.030

X-65 0.26 1.45 0.030 0.030

X-70 0.26 1.65 0.03 0.03

Nb+V+Ti<0.15%

IS 3039/1988 I 0.23 * 0.040 0.040 ** 0.42 ***

* Mn content not less than 2.5 times Carbon content if thickness >12.5 mm.** Si 0.10-0.35% if killed quality, otherwise up to 12.5 mm thickness. *** Al min 0.01%

II 0.21 0.70-1.4 0.040 0.040 0.10-0.35

III 0.18 0.70-1.5 0.040 0.040 0.19-0.50 *

* Al min 0.015%

Lloyds Grade A 0.20- 2.5xc% 0.035 0.035 0.50 0.400.23 min

B 0.21 0.80min 0.035 0.035 0.35 0.40

For Gr B Mn 0.60% min if impact tested.

SAILHARD 0.23 1.6 0.050 0.050 0.50

Al 0.10 max, Cr 0.65 max, Nb+V+Ti 0.15 max

GOST 19282 09G2S 0.12 1.3-1.7 0.035 0.040 0.5-0.8

10G2S1 0.12 1.3-1.65 0.035 0.040 0.8-1.1

Al 0.050 max, Cr 0.30 max, Ni 0.30 max, Cu 0.30 max, Ti 0.03 max,N 0.008 max

Dead Soft Quality 0.05 0.35 0.03 0.03 0.10 Al 0.01 minLO-Pearl 0.10 0.80 0.04 0.04 Cu 0.20-0.35SAILFORM 34 E 34 0.10 0.70 0.030 0.030 0.20SAILFORM 38 E 38 0.10 1.00 0.030 0.030 0.40 Al 0.02 min,SAILFORM 46 E 46/ 0.12 1.20 0.025 0.025 0.040

BSK46

Nb + Ti + V:0.20 Max


Specification Grade C % Mn % P % S % Si % Othersmax max max max max

SAIL SPP 400 0.20 1.70 0.02 0.01 0.10- Cr : 0.80 max0.70 Mo : 0.80 max

SAIL SPP 700 0.21 1.4 0.02 0.01 0.40 Cr : 0.5Mo : 0.45V : 0.08

SAIL HITEN 0.22 1.60 0.025 0.015 0.60 Al - 0.02 max690 AR V - 0.20 max

Ti - 0.02 maxNb - 0.50 max


Specification Grade Yield Ultimate Elongation InternalStrength Tensile Strength % min GL diameterMPa Min MPa Min 5.65√√√√√S0 of bend

ASTM-A 200 50 <25 >25-204M mm mm mm < 40 mm

B 275 485 -620 17 21 1.5T 2T

ASTM -A F 690 795-930 16-517

API 5L A 207 331 25

B 241-448 414-758 1.944A 0.2/ U0.9 (GL:50.8 mm)

X-42 290-496 414-758 A :Cross sectional area in mm2

X-46 317-524 434-758 U : Minium UTS in MPa

X-52 359-531 455-758

X-56 386-544 490-758

X-60 414-565 517-758

X-65 448-600 531-758

IS 3039/ < 25 >25<501988 mm mm

I 230 220 400-900 22

II 235 235 400-900 22

III 235 235 400-900 22

Lloyds A 235 400-490 22

Grade B 235 400-490 22

Impact 27J at 0°C for >25mm


Specification Grade Yield Ultimate Elongation InternalStrength Tensile Strength % min GL diameterMPa Min MPa Min 5.65√S0 of bend

SAILHARD Hardness - 200 BHN (Min)

GOST mm 8 to 10 to >20 >32 8 to 10 to >20 >3219282 for YS <10 <20 <32 <40 <10 <20 <32 <40

& UTS

09G2S 490 470 460 450 345 325 305 285

10G2S1 490 480 470 450 345 335 325 325

Elong 21, Bend Test- 2T, Charpy Impact energy 59 J min at +200 C.Impact for category 3 only.

DSQ

LO-Pearl 245 375 25 3T

SAIL FORM 34 E 34 333 392 27 Close

SAIL FORM 38 E 38 372 441 25 0.5T

SAIL FORM 46 E46 451 490 21 0.5 T

304 for t < 6 mm

SAIL SUPER FORM SAPH45/440 294 for t = 6-8 mm

HCRS Cu-P 340 480 21

SAIL SPP 900 1100 10400

SAIL SPP 620 725-860 16700

SAILHITEN 550 690 15 3.5T690 AR

Note : The mechanical properties specified in API Grades are for pipes only.HRC/Plate properties are to be mutually agreed upon by the producers & pipemanufacturers.



Cold Rolled Coils and SheetsBokaro Steel Plant : Rationalised sizes of CR Coils

Thickness (mm) Width (mm)0.27, 0.30, 0.35 900, 905, 910, 914, 9200.40, 0.45 900, 905, 910, 914, 920, 1000, 1005, 1010, 10200.5 900, 905, 910, 914, 920, 1000, 1005, 1010, 1020, 1105,

11200.55, 0.58 900, 905, 910, 914, 920, 1000, 1005, 1010, 1020, 11050.60 900, 905, 910, 914, 920, 1000, 1005, 1010, 1020, 1100,

1105, 11200.63 900, 905, 910, 914, 920, 1000, 1005, 1010, 1020, 1100,

1105, 1120, 1219, 1250, 12700.70 900, 905, 910, 914, 920, 1000, 1005, 1010, 1020, 1105,

1219, 1250, 12700.8, 0.9 900, 914, 920, 1000, 1020, 1120, 1219, 1250, 1270,

14201.00 900, 914, 920, 1000, 1020, 1120, 1219, 1250, 1270,

1320, 1420, 1520, 15801.25, 1.50 900, 914, 920, 1000, 1020, 1120, 1219, 1250,

1.60/ 1.85 1270, 1320, 1420, 1520, 1580, 16202.00 900, 914, 920, 1020, 1120, 1219, 1250, 1270, 1320,

1420, 1520, 1580, 1620Bitumen Size0.63 876, 896, 1120Barrel Size0.9 914, 920, 1225, 13201, 1.2, 1.25 914, 920, 1225, 1320, 1580

Coil weight : 5 to 13 tonnes for width above 1100 mm and 3 to 10 tonnes upto 1100 mm width.Coil Internal Diameter : 610 mm (CR-1 route) and 510 mm (Tandem Millroute).Common Grades : IS 513/1994 Grade O & D

Note : Some quantity may be available in mixed thicknesses of 0.3 - 0.5mm and mixed widths of 750-1000 mm

Bokaro Steel Plant : Rationalised sizes ofCold Rolled Sheets

Thickness (mm) Width (mm) Length (mm)0.60, 0.63, 0.70 900, 1000, 1100, 1250 2000, 2500, 3000, 3600

0.80, 0.90 900, 1000, 1100, 1250, 1400 2000, 2500, 3000, 3600

100, 1.25, 1.50, 900, 1000, 1100, 1250, 2000, 2500, 3000, 36001.60, 1.85, 2.00 1400, 1500

Barrel Size

1.0/ 1.25 915, 920 1815

1.0/ 1.25 1315, 1320 1970, 2000

Coil Dimension : Outer diameter : 2200 mm, maximum. Internal diameter: 510 mm (thickness 0.63 mm and below and width upto 1020 mm) and 600mm (for other sizes) and Coil weight : 6-23 tonnes (as per size)Tolerance as per IS - 513/1994Common Grades : IS 513/1994 (O, D, DD & EDD), IRSM 41, SAILCOR,SAILRIM, HSCR - 26/35.Bokaro Steel Plant also produces cold rolled coils and sheets to the followingforeign specifications : ASTM A 568/366, BS-1449-Pt-1, JIS G 3141 SPCC/CD, DIN-1623 St 12.3 or equivalent, if sufficient orders are available.

Rourkela Steel Plant : Rationalised Sizes of CR CoilsThickness (mm) Width (mm)0.35, 0.4, 0.5 900/9200.63, 0.8 900/920, 1000/10201.0,1.25, 1.6, 1.85 900/920, 1000/1020, 1100/1120, 1250/1270

Common grades: IS 513/1994, IRSM 41, SAILCORCR coils/sheets are supplied in oiled/unoiled condition as per customers’requirements.Tolerance as per IS - 513/1994.

Rourkela Steel Plant : Rationalised sizes of ColdRolled Sheets

Thickness (mm) Width (mm) Length (mm)0.5 900 25000.63, 0.8 900, 1000 2500

1.0, 1.25, 1.6 900, 1000, 1100, 1250 2500

Common grades : IS 513/1994 Grade O&D

Tolerances as per IS 513/1994

Packaging : CR CoilsCoils are first packed with paper and high-density polythene and then securedwith steel strapping. A coil is strapped with three eye and two circumferentialstraps. For identification, one sticker and one metallic tag with a sticker areprovided. These are then loaded into wagons with the eye of the coil inhorizontal position. Coils are then unitised by straping.Packaging : CR SheetsThese are packed in packets of 3 - 10 tonnes each and covered with high densitypolythene and paper. Thereafter, these are bound with steel straps. They alsohave stickers inside the packets and metal tags attached to the strips.


Tolerance on Thickness of Sheets

Tolerance on Thickness for differentwidths

Nominal thickness (mm) Up to Above 1250 Above1250 mm Up to 1600 mm 1600 mm

Up to 0.25 ± 0.03

Above 0.25 Up to 0.40 ± 0.04

Above 0.40 Up to 0.60 ± 0.05 ± 0.06

Above 0.60 Up to 0.80 ± 0.06 ± 0.07 ± 0.08

Above 0.80 Up to 1.00 ± 0.08 ± 0.09 ± 0.10

Above 1.00 Up to 1.25 ± 0.09 ± 0.10 ± 0.12

Above 1.25 Up to 1.60 ± 0.11 ± 0.12 ± 0.14

Above 1.60 Up to 2.00 ± 0.12 ± 0.14 ± 0.16

Tolerance on Width of Sheets

Width of Sheets Tolerance (mm)

Up to 1250 mm + 7, - 0

Above 1250 mm + 10, - 0

Tolerance on Length of Sheets

Length of Sheets Tolerance

Up to 2000 mm + 15 mm, - 0 mm

Above 2000 mm + 0.75% of length, - 0


Specification Grade C% Mn% P % S% Si%max max max max max

IS 513/1994 O 0.15 0.60 0.055 0.055D 0.12 0.50 0.040 0.040DD 0.10 0.45 0.035 0.035EDD 0.08 0.40 0.030 0.030

SAIL Draw EDD 0.04 0.15 0.015 0.015 0.03(CBT) (Al:0.025-

0.06)

SAILRIM 0.07-0.11 0.35-0.45 0.040 0.040 0.06 max

Semi Processed 0.05 0.25-.50 0.025 0.02 0.5-0.7electrical steel (Al : 0.08-0.12)

HSCR 26 0.08 0.8 0.025 0.025 0.5

35 0.12 1.20 0.025 0.025 0.3

Al 0.02 Min for both grades,Nb 0.02% max for grade 26 and 0.06% max for HSCR 35

SAILCOR (IRSM-41) 0.10 0.25 – 0.75 – 0.03 0.28 –0.45 0.140 0.72

Ni 0.20 – 0.47%, Cu 0.3 – 0.60%, Cr 0.35 – 0.60%, Mo 0.05% max, V 0.05% max, Al0.03% max, Mo+V+Al=0.09% max


Specifi- Grade YS UTS Elonga Hardness HRcation MPa MPa tion % HRB (max)

(max) (min) 30 T5.65√S0

IS 513/ O

D 280 270-410 23 65 60

DD 250 270-310 26 57 55

EDD 220 270-350 32 50 50

SAIL EDD 190 270-320 40 45DRAW (CBT)

HSCR 26 260 min 350 min 26

35 350 min 430 min 22

Bend : Close for both grades

SAILCOR (IRSM-41) 300 min 440 min 26

1994


Galvanised Plain Sheets and CoilsGalvanised Corrugated SheetsGalvanised steel sheets/coils are produced as per IS277/2003.

Bokaro Steel Plant : Rationalised sizes ofGalvanised Plain Coils

Thickness, mm (Gauge) Width (mm)

0.45 (27), 0.40 (28), 0.35 (29), 0.30 (30) 900, 1000

0.63 (24), 0.55 (25), 0.50 (26) 900, 1000, 1100

1.6 (16), 1.4 (17), 1.25 (18), 1.0 (20)

0.80 (22), 0.63 (24) 900, 1000, 1100, 1200, 1220

Bokaro Steel Plant : Rationalised sizes ofGalvanised Plain Sheets

Thickness, mm (Gauge) Width (mm) Length (mm)

0.45(27), 0.40(28), 0.35(29), 0.30(30) 900, 1000 2500, 3000

0.63(24), 0.55(25), 0.50(26) 900, 1000, 1100 2500, 3000

1.60(16), 1.40(17), 1.25(18),1.0(20), 900, 1000, 1100, 2500, 30000.80(22), 0.63(24) 1200, 1220

Width 1250 mm can be supplied on negotiation

Rourkela Steel Plant : Rationalised sizes ofGalvanised Plain Sheets


1.25(18), 1.00(20), 0.8(22), 0.63(24) 900,1000 2500, 3000

0.50(26), 0.40(28), 0.35(29) 900 2500

Rourkela Steel Plant : Rationalised sizes ofGalvanised Corrugated Sheets

Thickness, mm (Gauge ) Width (mm) Length (mm)

1.25 (18), 1.00(20), 810, 910 2500, 30000.8(22), 0.63(24), 0.50(26)

Applications

Specification Size Application

Full Hard IS 513 O 0.27 to 0.60 mm Coated Sheetsun-annealed thickness

SAILNOXIS 513 O (Sk)/D (K) Bitumen and Barrel sizes Packaging

SAIL PRESS Household applicationsIS 513 D/DD/EDD All sizes Automobile

IS 513 O (Sk)/D (K) 0.8 to 2 mm thickness Precision tubes

SAILCOR (IRSM41) 1.25 to 2 mm thickness Railway Couches/Wagons

IS 513 O/D with Cu 0.63 to 2 mm thickness Corrosionresistanceapplications

SAILRIM, SAILHUB 0.56 to 0.9 mm thickness CycleSAILMUDGUARD manufacturing

SEMI PROCESSED 0.5 to 0.63 Fractional Horse PowerELECTRICAL Motors & ElectricalSTEEL, SAIL LEC Applications

HSCR 26/35 0.8 to 2.0 Load bearing componentsfor automobiles,Roll formed sections,Industrial storagesystems, Drums,Barrels etc.


Bokaro Steel Plant : Rationalised sizes ofGalvanised Corrugated Sheets


1.6(16), 1.4(17), 1.25(18), 0.8(22), 800, 880, 885 2500, 3000, 36000.63(24), 0.55(25), 0.5(26), 0.45(27),0.4(28), 0.35(29), 0.30(30)

Packet Weight of GP/GC SheetsPlant GP sheets GC sheets

BSL 5 - 11 tonnes 5 -11 tonnes

RSP 3 - 10 tonnes 3 -9 tonnes

Special Coated Products from BSL.

(i) Galbo GP coils : Base Material is CRCA Grade ‘D’ (Sk) which is SkinPassed and stretcher levelled. Sheets will have normal spangles.

(ii) Galbo MSS GP coils : The base material is same as in (i). Sheets willhave virtually no observable spangles.

Various zinc coatings available from BSL and RSP, as per SpecificationIS 277/2003 are as follows :

Class of coating Zinc wt gm/ m2 Plant

CL II 450 RSP

CL III 350 RSP

CL IV 275 RSP/ BSL

CL V 220 RSP/ BSL

CL VI 200 RSP/ BSL

CL VII 180 RSP/ BSL

CL VIII 120 RSP/ BSL

Note : GP/GC sheets from Bokaro Steel Plant are supplied under theBrand Name “SAIL JYOTI”.

Applications

Material Application

GP Panelling, door frames, shutters, AC ducts,coolers, storage bins, auto sector, ice box,drums, buckets, tubs, tanks, trunks etc.

GC Roofing, Industrial sheds etc.

Tin Plates

Electrolytic Tin Plates

Tin plates are produced by electrolytically coating tin (Sn) on low carboncold rolled bright annealed mild steel sheets of extra deep drawing qualityas per IS 597 in ETP line at Rourkela Steel Plant.Specification : IS 1993 in Standard/Seconds or TIN SAIL.

Code Nominal coating Min average coating masswt in gm/m2 in gm/m2

Per surface Total both Total both surfacessurfaces

E2.8/2.8 2.8 5.6 4.9

Oil can

0.28 x 895/905/935 x 660 – Body size for edible oil0.28 x 895/905/935 x 710 – Body size for cashew nut containers0.28 x 765 x 510 – End size

Temper and Hardness

Temper : CA (57), CA (61)Hardness : +57 , -3 HR (30T)


Electrical Steels

CRNO Coils & Sheets

To meet the demands of the electrical industry, Rourkela Steel Plant offersCold Rolled Non Oriented (CRNO) fully processed steel used in the manu-facture of magnetic cores and components.

Standard Width : The standard width of CRNO coils or sheets are 900, 950and 1000 mm. Slit coils can be supplied in minimum width of 100 mm andthen in multiples of 10 mm. Other sizes are negotiable.

Standard Length : The standard length of CRNO sheets are2000 and 2500 mm.

Coil Weight : 1 to 5 tonnes.

Tolerances in dimensions and shape

Width Nominal Thickness Thickness Width Camber Flatness MaximumThickness Tolerance Deviation Tolerance per 2m (%max) Bow Height

% on in Transverse of length at 0.5mNominal Direction length

mm mm mm mm mm mm

<150 0.50 ±8 <0.03 +0.3 <1.0 2 10

>150 – 0.50 ±8 <0.03 +0.5 <1.0 2 10500

>500 – 0.50 ±8 <0.03 +1.5 <1.0 2 101000

>1000 0.50 ±8 <0.03 +1.5 <1.0 2 10

Flatness %: (Wave height/Wave length) x 100Burr height : maximum 50 micron

Grades and Specifications

Magnetic and Mechanical Properties

CRNO steels from RSP are graded on the basis of Epstein Core Loss Testat magnetic induction of 1.5 Tesla. The maximum core loss limit is basedupon the general procedure established by the American Society for Testingand Materials (ASTM A 34). For this purpose RSP has set up a fully equippedand modern testing laboratory consisting of among other equipment, asophisticated Digital Core Loss Testing Unit. Other test instruments includeFranklin Surface Insulation Resistance Tester, Hay Bridge, DC HysteresisLoop Tracer etc.

Magnetic properties and lamination factor of SAIL CRNO coils/sheets arein conformity ASTM A 677 specifications.

Grade Thickness Assumed Maximum Maximum MinimumDensity Core Loss Magnetic Stacking

Flux Density Factor %at 5000 A/m

mm (in) kg/ dm3 Watts perkg at 50Hz & 1.5T

M-27 7.70 3.31 1.60

M-36 7.70 3.57 1.60

M-43 0.50 7.70 4.01 1.61 96.0

M-45 (0.0197) 7.75 5.31 1.62

M-47A 7.75 6.98 1.64

M-47B 7.75 8.01 1.65

M-27 7.70 3.92 1.60

M-36 7.70 4.18 1.60

M-43 0.65 7.70 4.70 1.61 96.5

M-45 (0.0256) 7.75 6.27 1.63

M-47A 7.75 8.73 1.65

M-47B 7.75 10.01 1.66

Note : The present production range is in 0.50 mm thickness.


The values are measured in accordance with ASTM A34/JIS C 2550 methodsusing as sheared specimens consisting of half of the strip parallel and halfsheared transverse to the rolling directions.

Magnetic Ageing : The Non-Oriented steels will have less than 5% increasein core loss upon a standard ageing treatment (at 2250C for 24 hours). Gradingis done based on watt loss value obtained after ageing.

Packing : The material is first wrapped in stretch film over card boardprotectors in the eye and OD edges followed by an additional layer of air-bubble polythene type covering. It is then packed in galvanised sheet metalenvelope. Metallic collars are provided in the eye of the coil and on the ODto prevent handling damages. The envelope with strapped with 4 eye and 3to 4 circumferential straps. Additional support is provided when warranted.No metallic packing is given on slit coil.

Insulation and ApplicationsInsulation Description ApplicationsDesignation

C-0 Natural Fractional horsepower motors and relays,coating small communication power transformers

and reactors.

C-3 Organic Air/Oil cooled medium sized power andcoating distribution transformers, medium sized

continuous duty, high efficiency rotatingelectrical machinery.

C-4 Inorganic Applications requiring insulation similar tocoating C-3 and a stress relief anneal. Used

extensively for small stamped laminationsthat require higher resistance than what isprovided by annealing oxides.

C-6 Semi-organic Applications requiring stress-relief annealcoating and burn-off treatment. Extremely useful

for stamped laminations of hermeticallysealed compressors used in refrigerationsystem


Note : 1. ERW pipes in API specifications can be supplied with wallthickness upto 7.1 mm (0.281”), if mutually agreed upon.

2. Other thickness within the range can be produced for both ERW& SW Pipes

3. For SW Pipes thickness above 10.3 mm up to 12.7 mm canbe produced through negotiation

* The standard outer diameter of SW pipes are 18”, 20”, 22”, 24”,28”, 30”, 32”, 34”, 36”, 38”, 40”, 42”, 44”, 46”, 48”, 52”, 56”, 60”and 64”. Pipes in other diameters can be supplied as per mutualagreement.

Length

ERW Pipe : In random lengths of 6.2 to 12.2 metres, usually supplied withplain bevelled edges, bevelled angle being 300 (+50, - 00) with a root face of1.6 ± 0.8 mm

SW Pipe : In random lengths of 7.5 to 13 metres, usually supplied with plainbevelled edges, bevelled angle being 300 (+50, - 00) with a root face of 1.6 ±0.8 mm

IS 3589 Electrical Welded Steel PipesFor Water and Sewerage (Salient Points)

This specification derives assistance from ISO 559/1977 (InternationalStandards Organisation), BS 534/1981 (British Standard), BS 3601/1974(British Standard), API 5L (American Petroleum Institute)

Grade Chemical Composition Mechanical Properties

C% Mn% P% S% CE YS UTS Elonga-max max max max max MPa MPa tion %

min min min

Fe 330 0.16 1.20 0.040 0.040 — 195 330 20

Fe 410 0.20 1.30 0.040 0.040 0.45 235 410 18

Fe 450 0.25 1.20 0.040 0.040 0.45 275 450 12

Tolerances

A) Outer Diameter – ± 0.75%B) Wall Thickness – ERW ± 10 %

SWPP + 20%, - 12.5%C) Straightness - Deviation from straightness not to exceed 0.2% of the

total length of each pipe.

PipeERW & SW PipesProduct Range

Wall Thickness ERW SWOuter Diameter Outer Diameter *

Inch mm Inch mm Inch mm

0.188 4.8 85/8 219.1103/4 273.1

0.219 5.6 85/8 219.1 18-24 457-610103/4 273.1123/4 323.914 355.6

0.250 6.4 85/8 219.1 18-32 457-813103/4 273.1123/4 323.914 355.616 406.4

0.281 7.1 85/8 219.1 18-48 457-1219103/4 283.1123/4 323.914 355.616 406.4

0.312 7.9 85/8 219.1 18-64 457-1626103/4 273.1123/4 323.914 355.616 406.4

0.344 8.7 85/8 219.1 18-64 457-1626103/4 273.1123/4 323.914 355.616 406.4

0.375 9.5 85/8 219.1 18-64 457-1626103/4 273.1123/4 323.914 355.616 406.4

0.406 10.3 18-64 457-1626


Tolerances

(A) For diameter of welded, non-expanded pipes.

Size (Outer Diameter) Tolerance

Pipe Body

2 3/8 “ to <20” ± 0.75%

20" - 36" + 0.75%, - 0.25%

Above 36" + 6.35 mm, - 3.20 mm

Pipe Ends

< 10 3/4" - 0.4 mm, + 1.59 mm

> 10 3/4" - 0.79 mm, + 2.38 mm

(B) For wall thickness

Grade B or lower Grade X42 and higher

< 20" + 15%, -12.5% + 15%, - 12.5%

> 20" + 17.5 %, -12.5% + 19.5%, - 8 %

Notes:

1. Chemical composition over and above specified API composition to beas per mutual agreement.

2. Supplementary requirements of API 5L as per mutual agreement.

3. Rust preventive varnish coating and end protectors on pipe ends can beprovided as per mutual agreement.

4. Pipes in PSL-2 can be supplied only as per mutual agreement.

EndsUnless otherwise agreed, end shall be bevelled to an angle of 300 (+50,– 00 ) measured from a line drawn perpendicular to the axis of the pipe.

Hydraulic Pressure TestEach pipe shall be hydraulically tested at the manufacturers’ works. Themaximum test pressure will be 60% of the specified min YS as perP= ST/D, where

P = Hydraulic test pressure in MPaS = Min YST = Specific thickness in mmD = Specific outside diameter in mm

However, the maximum test pressure to be 5 MPa

API-5L Specifications for Line Pipe(Salient Points)

Grade & Class C % Mn% P% P% S% Other maxa maxa min max max

PSL-1 Welded

A 0.22 0.030 0.030

B 0.26 0.030 0.030 b,d

X 42 0.26 0.030 0.030 c,d

X46, X52, X56 0.26 0.030 0.030 c,d

X605 0.26 0.030 0.030 c,d

X655 0.26 0.030 0.030 c,d

X705 0.26 0.030 0.030 c,d

PSL-2

B 0.22 1.20 0.025 0.015 b,d

X42 0.22 1.30 0.025 0.015 c,d

X46, X52, X56 0.22 1.40 0.025 0.015 c,d

X605 0.22 1.40 0.025 0.015 c,d

X655 0.22 1.45 0.025 0.015 c,d

X705 0.22 1.65 0.025 0.015 c,d

X80 5 0.22 1.85 0.025 0.015 c,d

Notes1. For each reduction of 0.01% below the specified maximum carbon

content, an increase of 0.05% above the specified maximum manganesecontent is permissible, up to a maximum of 1.5% for grades X42 through

X52, up to a maximum of 1.65% for grades higher than X52 but lessthan X70, and up to 2.00% for grades X70 and higher.

2. Columbium (niobium), vanadium, titanium, or combinations thereof maybe used by agreement between purchaser and manufacturer.

3. Columbium (niobium), vanadium, titanium, or combinations thereof maybe used at the discretion of the manufacturer.

4. The sum of columbium (niobium), vanadium and titanium contents shallnot exceed 0.15%

5. Other chemical compositions may be furnished by agreement betweenthe purchaser and manufacturer, providing that the limits of Note d andthe tabular limits for phosphorous and sulphur are met.


RailsBhilai Steel Plant : Details of Rails

Profile Sectional Standard MillWt Kg/M Length

R – 45 44.61 13m Rail & Structural Mill, Bhilai



Specifications

Specifi- Grade Chemical Composition % Mechanicalcation Properties

C Mn P S Si TS % El #max max MPa

IRS – 880 0.60 – 0.80 – 0.035 0.035 0.10 – 880 10.0T12/96a 0.80 1.30 0.50 min

IRS – Med 0.40 – 0.80 – 0.060 0.060 0.03 – 860 10.0T18/86* Min 0.65 1.45 0.30 min

Industrial Use 0.60 – 0.80 – 0.055 0.055 0.10 – 840 10.0Rails 0.85 1.40 0.50 min

High 0.11 0.30 – 0.050 0.050 0.04Conductivity Rails max 0.50

a For IRS:T-12/96 Hydrogen content < 3 ppm and Al max 0.02%

# % Elongation in 5.65√S0 gauge length

* Also arising of grade 880 with respect to surface defect and dimensions are suppliedagainst T-18 category as per Chemical composition of T-12 grade 880

Bhilai Steel Plant can also produce rails as per specifications of the Union ofInternational Railways and other foreign specifications, like British Standard orJapanese Industrial Standard, if sufficient orders are available.

ApplicationsSpeed of Specification Sectional Unit Hydrogen Testtrain km/hr Weight Tensile Content Certificate

kg/m Strength

> 50 IRS: T-12/ 96 52/60 90 < 3 ppm Yes

30-50 IRS: T-18/ 86 52/ 60 Yes

< 30 IU 52/ 60 No

IISCO Steel PlantProfile Sectional Wt Standard Mill

kg/m Length

15 kg/m 14.88 10 m and above LSM

30 kg/m 29.76 11.5 m and above HSM

45 kg/m 44.61 11.5 m and above HSM

* Work Tested Quality only

LSM : Light Structural Mill

HSM : Heavy Structural Mill

Note : Below 10/11.5 m can also be supplied

DimensionsReference 45 30 15Mark (mm) kg/m kg/m kg/m

A 142.88 114.30 79.38

B 136.53 109.54 78.20

C 66.68 57.15 41.28

D 13.89 11.11 7.54

E 43.66 35.72 25.40

F 20.64 16.69 11.90

G 59.93 47.63 32.94

H 4.76 3.97 1.59

J 12.70 9.53 7.94

K 9.53 5.56 4.76

L 9.53 8.73 6.35

M 381.00 228.60 190.50

r 1.5 1.5 1.5

S1 3 3 3

S2 6 6 6


Wheels, Axles & Wheel SetsDurgapur Steel Plant: Details of Wheels, Axles and Wheel Sets

Item Weight Wheel Axleper tread load,piece, dia, tkg mm

Diesel Loco Wheel 528 1097

BG Coach Wheel 384 920

13T BG CoachWheel Set 1072 915 13.00

16T AC Wheel Set 1092 915 16.25

IR-20 Bogie Wheel 333 890

BOX Wheel Set 1343 1000 20.00

BOX N Wheel Set 1430 1000 22.90

BOX N Loose Wheel 473 1000

BOX N Loose Axle 552 22.90

16T Loose Axle 378 16.25

13 T Loose Axle 363 13.00

All the above items are as per the relevant drawings.Chemical Composition

Specification C% Mn % P% S% Si%max max max max

IRS: R-16/ 95* 0.37 1.12 0.040 0.040 0.15-0.46

IRS: R-19/ 93** 0.52 0.60- 0.030 0.030 0.15-0.80 0.40

IRS: R-34/ 99*** 0.57- 0.60- 0.030 0.030 0.150.67 0.85 min

* P+S = 0.07 max

** For IRS: R-19/93 Hydrogen content < 3ppm (Liquid steel)

* * * For IRS: R-34/99 Hydrogen content < 2.5 ppm

ApplicationsSpecifications Applications

15 kg/m Crane Rail, Coal tub tram in colliery etc.

30 kg/m Crane Rail

45 kg/m Slow speed Railway, Light post,

Charging Car, Coke Car and Coke guide

car track etc.

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Applications


IRS : R-34/99 Diesel Loco Wheels

IRS : R-19/93 BG Coaching and other wheels

IRS : R-16/95 Axles


Specification Yield Tensile % V-NotchStrength Strength Elongation Impact(Min) MPa ToughnessMPa at +20°C

J/cm2

IRS: R-16/ 95 Normalised 320 550-650 22 min 25 min

Quenched& Tempered 350 550-700 24 min 40 min

IRS: R-19/ 93 50% of 820-940 14 min 15 minUTS

IRS: R-34/ 99 50% of 775-900 13-11 min 10 minUTS (at web)

For IRS : R-19/93 : Hardness range- 241 to 277 BHN.

For IRS : R-34/99 : Hardness range on outside face of rim : 300-341 BHN.On web face of the wheel, hardness shall not exceed 293 BHN.

Wheels are 100% rim-sprayed, tempered and hardness tested along withultrasonic testing in IRS : R-19/93 and IRS : R-34/99 specifications.

Pig IronThe mass of each pig pallet shall be either 45 kg having two notches or22.5 kg having one notch, subject to mutual agreement between thepurchaser and manufacturer.

Specifications

Specification Grade Designation Si% Mn% P% S%max

IS 13502/ Steel- PG Si X Mn1 P40 See <0.5 <0.4 0.061992 making PG Si X Mn3 P40 Note 1 0.5-1.0

PG Si X Mn5 P40 1.0-1.5

Note :

1. When ordering the integer given below shall be substituted for thesymbol ‘X’ in the designation to the specific silicon range :

Integer No. Steelmaking Pig Iron

1 < 0.75

2 > 0.75 but < 1.25

3 >1.25 but < 1.75

2. Other elements such as Cr, Mo, Ni, Ti, V etc. may be present in traces(total not exceeding 10%). The contents of these elements shall not beused in classification of pig iron. Pig Iron is available in SAIL grade withsilicon content of 1 - 1.5%.

FertiliserAmmonium Sulphate (20.6% N) – Brand name “Raja”

Coal ChemicalsBenzene (NG); Toluene (NG & IG); Xylene; Light Solvent Naphtha; SolventOil; Heavy Solvent Naphtha; Benzol (IG); Still Bottom Oil; Hard, Medium,Granulated and Liquid Pitch; Extra Hard Pitch; Hot Pressed Naphthalene/Naphthalene Flakes; Heavy Creosote Oil; Anthracene Oil; Light CreosteOil; Meta Para Creosole; Light Oil; Sodium Phenolate; Drained NaphthaleneOil; Dephenolised Oil; Heavy Benzol

NG: Nitration Grade IG: Industrial Grade

For purchase of coal chemicals customers may contact the MarketingManagers of the plants at Bhilai, Bokaro, Durgapur and Rourkela.