PipesERW & SW Pipes from Rourkela Steel Plant

SW PipesOuter Diameter

OD in Inch OD in mm20 508

24 609.6

28 711.2

32 812.8

36 914.4

40 1016

44 1117.6

48 1219.2

52 1320.8

56 1422.4

60 152.4

64 1625.6

Product Range

ERW PipesDiameter Thickness (mm)(inch)

8 5/8 4.8 5.2 5.6 6.0 6.4 7.1 7.9 9.5 10

10 3/4 4.8 5.2 5.6 6.0 6.4 7.1 7.9 9.5 1012 3/4 5.0 5.2 5.6 6.0 6.4 7.1 7.9 9.5 10

14 5.0 5.2 5.6 6.0 6.4 7.1 7.9 9.5 10

16 5.2 5.6 6.0 6.4 7.1 7.9 9.5 10

18 5.2 5.6 6.0 6.4 7.1 7.9 9.5 10

Pipes can be supplied with rust preventive coatings like varnish, red oxide, enamel, etc.

1. ERW pipes in API specifications can be supplied with wall thickness upto 10 mm, if mutuallyagreed 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 can be produced as per mutualagreement

* The standard outer diameter of SW pipes are 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 12.4 metres, usually supplied with plain bevelled edges,

bevelled angle being 300 (+50, - 00) with a root face of 1.6 ± 0.8 mm. Pipes with closer length

tolerance can also be supplied as per mutual agreement.

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

IS: 3589 ERW and SW Pipes for Water and Sewerage (Salient Points)

This specification derives assistance from ISO 559/1977 (International Standards Organisation),BS: 534/1981 (British Standard), BS 3601/1974 (British Standard), API 5L (American PetroleumInstitute)

Grade Chemical Composition Mechanical Properties

C % Mn % P % S % CE YS UTS Elongationmax max max max max MPa MPa %

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 eachpipe.

Notes

NotesUnless otherwise agreed, end shall be bevelled to an angle of 30° (+5°, – 0°) measured froma line drawn perpendicular to the axis of the pipe.

Hydraulic Pressure Test

Each pipe shall be hydraulically tested at the manufacturers’ works. The maximum test pressurewill be 60% of the specified min YS as per

P = ST/D, where

P = Hydraulic test pressure in MPa

S = Min YS

T = Specific thickness in mm

D = Specific outside diameter in mm

Note : Pipes can also be supplied in IS 4270 (ERW ), IS 5504 (SW ), ASTM A53 (ERW ) Grades

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

Grade & Class C % Mn% Si% P% S% Othermax1 max1 max max max

PSL-1 Welded

A 0.22 0.90 0.030 0.030

B 0.26 0.20 0.030 0.030 c, d

X 42 0.26 1.30 0.030 0.030 d

X46, X52, X56 0.26 1.40 0.030 0.030 d

X60 0.26e 1.40e 0.030 0.030 f

X65 0.26e 1.45e 0.030 0.030 f

X70 0.26e 1.65e 0.030 0.030 f

PSL-2

B 0.22 1.20 0.025 0.015 e, l

X42 0.22 1.30 0.025 0.015 e, l

X46 0.22 1.30 0.45 0.023 0.015 d, e, l

X52, X56 0.22 1.40 0.45 0.025 0.015 d, e, l

X60 0.12f 1.60f 0.025 0.015 g, h, l

X65 0.12f 1.60f 0.025 0.015 g, h, l

X70 0.12f 1.70f 0.025 0.015 g, h, l

X80 0.12f 1.85f 0.025 0.015 g, h, i

Notes for PSL 1 Pipea. Cu ≤0,50%; Ni≤0,50%, Cr ≤0,50% and Mo≤0.25%b. For each reduction of 0,01% below the specified maximum concentration for carbon, an

increase of 0.05% above the specified maximum concentraion for Mn is permissible, up toa maximum of 1.65% for grades ≥L245 or B, but ≤L360 or X52; up to a maximum of 1,75%for grades >L360 or X52, but <L485 or X70; and up to a maximum of 2.00% for grade l485or X70.

c. Unless otherwise agreed, Nb+V≤0,06%.d. Nb+V+Ti≤0,15%.e. Unless otherwise agreed.f. Unless otherwise, Nb+V+Ti<0,15%.g. No deliberate addition of b is permitted and the residual B<0,001%

a. Based upon product analysis. For seamless pipe with t>20,0 mm (0.787 in), the CE limitsshall be as agreed. The CEIIW Limits apply if C>0.12% and the CEPcm limits apply if C<0,12%.

b. For each reduction of 0,01% below the specified maximum for C, an increase of 0,05% abovehe specified maximum for Mn is permissible, up to a maximum of 1,65% for grades≥L245 orb, but ≤L360 or X52; up to a maximum of 1,75% for grades>L360 or X52, but <L485 or X70;up to a maximum of 2,00% for grades ≥L485 or x70, but ≤L555 or X80; and up to a maximumof 2,20% for grades >L555 or X80.

c. Unless otherwise agreed, Nb+V≤0,06%.d. Nb+V+Ti≤0,15%.e. Unless otherwise agreed, Cu≤0,50%; Ni≤0,30%; Cr≤0,30% and Mo≤0,15%.f. Unless otherwise agreed.g. Unless otherwise agreed, Nb+V+Ti≤0,15%.h. Unless otherwise agreed, Cu≤0,50%; Ni≤0,50%; Cr≤0,50% and Mo≤0,50%.i. Unless otherwise agreed, Cu≤0,50%; Ni≤1,00%; Cr≤0,50% and Mo≤0,50%.j. B≤0,004%.k. Unless otherwise agreed, Cu≤0,50%; Ni≤1,00%; Cr≤0,55% and Mo≤0,80%.l. For all PSL 2 pipe grades except those grades to which footnote j already applies, the following

applies. Unless otherwise agreed no intentional addition of B is permitted and residualB<0,001%.

Notes for PSL 2 Pipe

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 be as per mutualagreement.

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

3. Rust preventive varnish coating and end protectors on pipe ends can be provided as permutual agreement.

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

Electrical Steels

To meet the demands of the electrical industry, Rourkela Steel Plant offers Cold Rolled NonOriented (CRNO) fully processed steel used in the manufacture of magnetic cores and components.

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

Standard Length : The standard length of CRNO sheets are 2000 and 2500 mm.

Coil Weight : 1 to 5 tonnes.

Tolerances in dimensions and shape

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

% on in Transverse of length at 0.5mNominal Direction length

mm mm mm mm mm mm

< 50 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

CRNO Coils & Sheets

Grades and Specifications

CRNO steels from RSP are graded on the basis of Epstein Core Loss Test at magnetic inductionof 1.5 Tesla. The maximum core loss limit is based upon the general procedure establishedby the American Society for Testing and Materials (ASTM A 34). For this purpose RSP has setup a fully equipped and modern testing laboratory consisting of among other equipment,a sophisticated Digital Core Loss Testing Unit. Other test instruments include Franklin SurfaceInsulation Resistance Tester, Hay Bridge, DC Hysteresis Loop Tracer etc.

Magnetic properties and lamination factor of SAIL CRNO coils/sheets are in conformity ASTMA 677 specifications.

Grades Thickness Assumed Maximum Core a.c Magnetization MinimumAs per BIS (mm) Density Loss at 50 Hz and (50 Hz) Minimum Stacking

(kg/dm3) 1.5T (W/kg) Values of B MaxTesla 5000 A/m

50C 330 7.65 3.30 1.60

50C 350 7.65 3.50 1.60

50C 400 7.70 4.0 1.63

50C 470 7.70 4.7 1.64

50C 530 7.70 5.3 1.65

50C 600 0.50 7.75 6.0 1.66 96.0

50C 630 7.75 6.3 1.68

50C 700 7.80 7.0 1.69

50C 800 7.80 8.0 1.70

50C 900 7.80 9.0 1.70

50C 1000 7.85 10.0 1.72

Note : The present production is in 0.50 mm thickness. Production can be undertakenin 0.35mm and 0.65mm thickness conforming to BIS Specification IS:648 with mutual consent.

Magnetic and Mechanical Properties

The values are measured in accordance with ASTM A34/HS C 2550 methods using assheared specifications consisting of half of the strip parallel and half sheared transverse to therolling directions.

Magnetic Ageing : The Non-Oriented steels will have less than 5% increase in core loss upona standard ageing treatment (at 2250C for 24 hours). Grading is done based on watt loss valueobtained after ageing.

Packing : The material is first wrapped in stretch film over card board protectors in the eyeand OD edges followed by an additional layer of air-bubble polythene type covering. It is thenpacked in galvanised sheet metal envelope. Metallic collars are provided in the eye of the coiland on the OD to prevent handling damages. The envelope with strapped with 4 eye and 3 to4 circumferential straps. Additional support is provided when warranted. No metallic packingis given on slit coil.

Insulation and Applications

Insulation Description ApplicationsDesignation

C-0 Natural coating Fractional horsepower motors and relays, smallcommunication power transformers and reactors.

C-3 Organic coating Air/Oil cooled medium sized power and distributiontransformers, medium sized continuous duty, highefficiency rotating electrical machinery.

C-4 Inorganic coating Applications requiring insulation similar to C-3 and astress relief anneal. Used extensively for small stampedlaminations that 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 hermetically sealed compressors usedin refrigeration system

Tin Plates

Tin plates are produced by electrolytically coating tin (Sn) on low carbon cold rolled brightannealed mild steel sheets of extra deep drawing quality as per IS 597 in ETP line at RourkelaSteel 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 oil

0.28 x 895/905/935 x 710 – Body size for cashew nut containers

0.28 x 765 x 510 – End size

Temper and Hardness

Temper : CA (57), CA (61)

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

Electrolytic Tin Plates

Chemical composition for PSL 1 pipe with t ≤ 25.0 mm (0.984 in)

Steel gradeMass fraction, based upon heat and product analyses a,g (%)

(Steel name) C Mn P S V Nb Timaxb maxb min max max max max max

Seamless pipe

L175 or A25 0.21 0.60 - 0.030 0.030 - - -

L175P or A25P 0.21 0.60 0.045 0.080 0.030 - - -

L210 or A 0.22 0.90 - 0.030 0.030 - - -

L245 or B 0.28 1.20 - 0.030 0.030 c,d c,d d

L290 or X42 0.28 1.30 - 0.030 0.030 d d d

L320 or X46 0.28 1.40 - 0.030 0.030 d d d

L360 or X52 0.28 1.40 - 0.030 0.030 d d d

L390 or X56 0.28 1.40 - 0.030 0.030 d d d

L415 or X60 0.28e 1.40e - 0.030 0.030 f f f

L450 or X65 0.28e 1.40e - 0.030 0.030 f f f

L485 or X70 0.28e 1.40e - 0.030 0.030 f f f

Welded pipe

L175 or A25 0.21 0.60 - 0.030 0.030 - - -

L175P or A25P 0.21 0.60 0.045 0.030 0.030 - - -

L210 or A 0.22 0.90 - 0.030 0.030 - - -

L245 or B 0.26 1.20 - 0.030 0.030 c,d c,d d

L290 or X42 0.26 1.30 - 0.030 0.030 d d d

L320 or X46 0.26 1.40 - 0.030 0.030 d d d

L360 or X52 0.26 1.40 - 0.030 0.030 d d d

L390 or X56 0.26 1.40 - 0.030 0.030 d d d

L415 or X60 0.26e 1.40e - 0.030 0.030 f f f

L450 or X65 0.26e 1.45e - 0.030 0.030 f f f

L485 or X70 0.26e 1.65e - 0.030 0.030 f f f

a Cu≤ 0.50%; Ni ≤0.50%; Cr ≤ 0.50% and Mo ≤ 0.15%b For each reduction of 0.01% below the specified maximum concentration for carbon, an increase

of 0.05% above the specified maximum concentration for Mn is permissible, up to maximum of1.65% for grades ≥ L245 or B, but ≤ L360 or X52; up to a maximum of 1.75% for grades >L360or X52, but <L485 or X70 and up to a maximum of 2.0% for grade L485 or X70.

c Unless otherwise agreed, Nb + V ≤ 0.06%.d Nb + V + Ti ≤ 0.15%.e Unless otherwise agreed.f Unless otherwise agreed, Nb + V + Ti ≤ 0.15%.g No deliberate addition of B is permitted and the residual B²0.001%.

Chemical composition for PSL 2 pipe with t ≤ 25.0 mm (0.984 in)

Steel gradeMass fraction, based upon heat and product analyses a,g (%) Carbon

(Steel nameeqivalenta %maximum

Cb Si Mnb P S V Nb Ti Other CEIIW CEPcmSeamless and welded pipes

L245R or BR 0.24 0.40 1.20 0.025 0.015 c c 0.04 e,l 0.40 0.25L290R or X42R 0.24 0.40 1.20 0.025 0.015 0.06 0.05 0.04 e,l 0.43 0.25L245N or BN 0.24 0.40 1.20 0.025 0.015 c c 0.04 e,l 0.43 0.25L290N or X42N 0.24 0.40 1.20 0.025 0.015 0.06 0.05 0.04 e,l 0.43 0.25L320N or X46N 0.24 0.40 1.40 0.025 0.015 0.07 0.05 0.04 d,e,l 0.43 0.25L360N or X52N 0.24 0.45 1.40 0.025 0.015 0.10 0.05 0.04 d,e,l 0.43 0.25L390N or X56N 0.24 0.45 1.40 0.025 0.015 0.10f 0.05 0.04 d,e,l 0.43 0.25L415N or X60N 0.24f 0.45f 1.40f 0.025 0.015 0.10f 0.05f 0.04f g,e,l as agreedL245Q or BQ 0.18 0.45 1.40 0.025 0.015 0.05 0.05 0.04 e,l 0.43 0.25L290Q or X42Q 0.18 0.45 1.40 0.025 0.015 0.05 0.05 0.04 e,l 0.43 0.25L320Q or X46Q 0.18 0.45 1.40 0.025 0.015 0.05 0.05 0.04 e,l 0.43 0.25L360Q or X52Q 0.18 0.45 1.50 0.025 0.015 0.05 0.05 0.04 e,l 0.43 0.25L390Q or X56Q 0.18 0.45 1.50 0.025 0.015 0.07 0.05 0.04 d,e,l 0.43 0.25L415Q or X60Q 0.18f 0.45f 1.70f 0.025 0.015 g g g h,l 0.43 0.25L450Q or X65Q 0.18f 0.45f 1.70f 0.025 0.015 g g g h,l 0.43 0.25L485Q or X70Q 0.18f 0.45f 1.80f 0.025 0.015 g g g h,l 0.43 0.25L555Q or X80Q 0.18f 0.45f 1.90f 0.025 0.015 g g g i,j as agreedL625Q or X90Q 0.16f 0.45f 1.90 0.020 0.010 g g g j,k as agreedL690Q or X100Q 0.16f 0.45f 1.90 0.025 0.015 g g g j,k as agreed

Welded pipe

L245M or BM 0.22 0.45 1.20 0.025 0.015 0.05 0.05 0.04 e,l 0.43 0.25L290M or X42M 0.22 0.45 1.30 0.025 0.015 0.05 0.05 0.04 e,l 0.43 0.25L320M or X46M 0.22 0.45 1.30 0.025 0.015 0.05 0.05 0.04 e,l 0.43 0.25L360M or X52M 0.22 0.45 1.40 0.025 0.015 d d d e,l 0.43 0.25L390M or X56M 0.22 0.45 1.40 0.025 0.015 d d d e,l 0.43 0.25L415M or X60M 0.12f 0.45f 1.60f 0.025 0.015 g g g h,l 0.43 0.25L450M or X65M 0.12f 0.45f 1.60f 0.025 0.015 g g g h,l 0.43 0.25L485M or X70 0.12f 0.45f 1.70f 0.025 0.015 g g g h,l 0.43 0.25L555M or X80M 0.12f 0.45f 1.85f 0.025 0.015 g g g l,l 0.43 f 0.25L625M or X90M 0.10 0.55f 2.10f 0.020 0.010 g g g l,l - 0.25L690M or X100M 0.10 0.55f 2.10f 0.020 0.010 g g g l,l - 0.25L830M or X120M 0.10 0.55f 2.10f 0.020 0.010 g g g l,l - 0.25

a Based upon product analysis. For seamless pipe with l >20.0 mm (0.787 in), the CE limits shall be agreed. The CEIIWlimits apply if C >0.12% and the CEpcm limits apply if C ≤ 0.12%.

b For each reduction of 0.01% below the specified maximum for carbon, an increase of 0.05% above the specified maximumfor Mn is permissible, up to maximum of 1.65% for grades ≥ L245 or B, but ≤ L360 or X52; up to a maximum of 1.75%for grades > L360 or X52, upto a maximum of 1.75% for grades L360 or X52, but < L485 or X70 and up to a maximumof 2.0% for grade ≥ L485 or X70, but ≤ L555 or X80; and up to maximum of 2.20% for grades > L555 or X80.

c Unless otherwise agreed, Nb + V ≤ 0.06%.d Nb + V + Ti ≤ 0.15%.e Unless otherwise agreed, Cu ≤ 0.50%; Ni ≤ 0.30%; Cr ≤ 0.30% and Mo ≤ 0.50%.f Unless otherwise agreed.g Unless otherwise agreed, Nb + V + Ti ≤ 0.15%.h Unless otherwise agreed, Cu ² 0.50%; Ni ≤ 0.50%; Cr ≤ 0.50% and Mo ≤ 0.50%.i Unless otherwise agreed, Cu ≤ 0.50%; Ni ≤ 1.00%; Cr ≤ 0.50% and Mo≤ 0.50%.j B ² 0.004%.k Unless otherwise agreed, Cu ≤ 0.50%; Ni ≤ 1.00; Cr ≤ 0.55% and Mo≤ 0.80%.l For all PSL 2 pipe grades except those except those grades to which footnote j already applies, the following applies.

Unless other agreed no international addition of B is permitted and residual B ≤ 0.001%.