IS 2062:2006(Superseding IS 1977:1996

and IS 8500: 1991)

TkFi’TF&T-l-d( u-mp%w )

Indian Standard

HOT ROLLED LOW, MEDIUM AND HIGHTENSILE STRUCTURAL STEEL

(Sixth Revision)

ICS 77.140.01

0 BIS 2006

BUREAU OF INDIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

October 2006 Price Group 5

Wrought Steel Products Sectional Committee, MTD 4

FOREWORD

This Indian Standard (Sixth Revision) was adopted by the Bureau of Indian Standards, after the drafl finalizedby the Wrought Steel Products Sectional Committee had been approved by the Metallurgical Engineering DivisionCouncil.

This standard was first published in 1962 and revised in 1969, 1975, 1984, 1992 and 1999. While reviewingthis standard, in the light of experience gained during these years, the Committee decided to revise it to bring inline with the present practices being followed by the Indian industry and overseas standards of structural steels.

In this revision the following changes have been made:

a) Title of this standard has been modified.

b) Amendments No. 1, 2, 3 and 4 have been incorporated.

c) A new clause on references has been incorporated.

d) Number of grades have been increased to nine.

e) ‘International grades designation system based on yield stress has been adopted, simultaneously olddesignations have also been given in parentheses.

Q Provision of normalizing rolling/controlled cooling have been incorporated.

g) Requirements of IS 1977 and IS 8500 have been incorporated.

The revised standard shall supersede the following standards:

a) IS 1977: 1996 Low tensile structural steels

b) IS 8500:1991 Structural steel — Microalloyed (medium and high strength qualities)

To keep the pace of technical upgradation in the steel industry, the Committee agreed to reduce the sulphur andphosphorus content, during the next revision.

For all the tests specified in this standard (chemical/physical/others), the method as specified in relevant1S0 Standard may also be followed as an alternate method.

While revising the standard assistance has been derived fkom 1S0 630: 1995 ‘Structural steels — Plates, wideflats, bars, sections tid profiles’.

The composition of the Committee responsible for formulation of this standard is given in Annex A.

For the purpose ~f deciding whether a particular requirement of this standard is complied with, the finalvalue, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordancewith IS 2: 1960 ‘Rules for rounding off numerical values (revised)’. The number of significant places retainedin the rounded off value sho-uldbe the same as that of the specified value in this standard.,,

IS 2062:2006

Indian Standard

HOT ROLLED LOW, MEDIUM AND HIGHTENSILE STRUCTURAL

(Sixth Revision )

1 “SCOPE

1.1 This standard covers the requirements of steelincluding micro-alloyed steel plates, strips, shapes andsections (angles, tees, beams, channels, etc), flats, bars,etc, for use in structural work.

1.1.1 The steels are suitable for welded, bolted andriveted structures and for general engineering purposes.

1.1.2 Where welding is employed for fabrication andguaranteed-weldability is required, welding procedureshould be as specified in IS 9595.

2 REFERENCES

The standards listed below contain provisions, whichthrough reference in this text constitute provisions ofthis standard. At the time of publication, the editionsindicated were valid, AU standards are subject torevision and parties to agreements based on thisstandard are encouraged to investigate the possibilityof applying the most recent editions of the standardsindicated below:

IS No.

228 (in variousparts)

808:1989

1173:1978

1252:1991

1599:1985

1608:2005

1730:1989

1731:1971

1732:1989

Title

Method for chemical analysis of steel

Dimensions for hot rolled steelbeam, column, channel and anglesections (third revision)

Hot rolled slit steel tee bars (secondrevision)

Hot rolled steel bulb angles —Dimensions (j7rst revision)

Method for bend test (secondrevision)

Metallic materials — Tensile testingat ambient temperature (thirdrevision)

Steel plates sheets, strips and flatsfor structural and generalengineering purposes (secondrevision)

Dimensions for steel flats forstructural and general engineeringpurposes @st revision)

Dimensions for round and squaresteel bars for structural and general

IS No.

1757:1988

1852:1985

1863:1979

1956 (in variousparts)

2314:1986

3803 (Part 1):1989

3954:1991

8910:1978

9595:1996

10182

(Part 1): 1982

(Part 2): 1985

10842:1984

12778:1989

STEEL

Title

engineering purposes (firstrevision)

Method for Charpy impact test (V-notch) for metallic material (secondrevision)

Rolling aird cutting tolerances forhot rolled steel products ~ourthrevision)

Hot rolled steel bulb flats ~irstrevision)

Glossary ofterms relatingto iron andsteel (in various parts)

Steel sheet piling sections (firstrevision)

Steel — Conversion of elongationvalues : Part 1 Carbon and low alloysteels (second revision)

Hot rolled steel channel sections forgeneral engineering purposes (firstrevision)

General technical deliveryrequirements for steel and steelproducts

Metal arc welding of carbon andcarbon manganese steels —Recommendations (@t revision)

Dimensions and tolerances for hotrolled track shoe sections:

Sections TS 1.1

Sections TS H. 1

Testing and evaluation procedure forY groove crackability test

Dimensions for hot rolled steelparallel flange beam and columnsections

3 TERMINOLOGY

For the purpose of this standard, the followingdefinitions in addition to those given in the relevantparts of IS 1956 shall apply.

3.1 Micro-Alloying Elements — Elements, such asniobium, boron, vanadium and titanium addedsingly or in combination to obtain higher strength

IS 2062:2006

to weight ratio combined with better toughness,formability and weldability as compared to unalloyedsteel of similar strength level.

3.2 Weldability — A metallic substance is consideredto be weldable by a given process and for the givenpurpose, when metallic continuity to a stated degreecan be obtained by welding using a suitable procedure,so that the joints comply with the requirementsspecified in regard to both their local properties andtheir influence on the construction of which they forma part.

3.3 Controlled -Rolling — A hot rolling process inwhich the temperature of the steel and its reductionratio are controlled, particularly during the final rollingpasses, in order to achieve fine grain micro structureand optimum mechanical properties.

3.4 Normalizing Rolling — A hot rolling process inwhich the final rolling passes are carried out at asuitable higher temperature, followed by cooling innatural air to a temperature below the transformationtemperature, in order to produce a structure, analogousto that obtained by a separate normalizing treatmentof hot rolled product.

4 SUPPLY OF MATERIAL

General requirements relating a supply of structuralsteel shall conform to IS 8910.

5 GRADES

There shall be nine grades of steel as given inTables 1 and 2. While placing the order the steeIshould be designated by ‘Designation’ (see Tables 1and 2).

6 MANUFACTUR-E

The processes used in the steel making and fi.u-therhotrolling into steel plates, strips, sections, flats, bars, etc,are left to the discretion of the manufacturer/supplier. If required, secondary refining may followsteel making, as also normalizing rolling/controlledrolling during manufacturing of sections or asthe agreement between the purchaser and themanufacturer/supplier.

7 FREEDOM FROM DEFECTS

7.1 All finished steel shall be well and cleanly rolledto the dimensions, sections and masses specified. Thefinished material shaIl be reasonably free from surfaceflaws; laminations; rough/jagged and imperfect edgesand all other harmful defects.

7.2 Minor surface defects may be removed by themanufacturer/supplier by grinding provided thethickness is not reduced locally by more than 4 percentbelow the minimum specified thickness. Reduction inthickness by grinding greater than 4 percent but not

exceeding 7 percent may be made subject to mutualagreement between the purchaser and the manufacturer/supplier.

7.2.1 Subject to agreement with the purchaser,surface defects which cannot be dealt with as in 7.2may be repaired by chipping or grinding followed bywelding and inspection by a mutually agreed proceduresuch that:

a)

b)

c)

After complete removal of the defects andbefore welding, the thickness of the item isin no place reduced by more than 20 percen~

Welding is carried out by approvedprocedure by competent operators withapproved electrodes and that the welding isground smooth to the correct nominal thickness;and

Subsequent to the finish grinding, the itemmay be required to be normalized or otherwiseheat-treated at the purchaser’s discretion.

“7.3 Welding as mentioned in 7.2.1 is not permissiblefor grade designation E 250 C material.

8 CHEMICAL COMPOSITION

8.1 Ladle Analysis

The ladle analysis of the steel, when carried out bythe method specified in the relevant parts of IS 228 orany other established instrumental/chemical method,shall be as given in Table 1. In case of dispute, theprocedure given in IS 228 and its relevant parts shallbe the referee method and where test methods are notspecified shall be as agreed to between the purchaserand the manufacturer/supplier.

8.2 Product Analysis

The product analysis shall be carried out on thefinished product from the standard position.Permissible limits of variation in case of productanalysis from the limits specitled in Table 1 shall be asgiven in Table 3.

9 SELECTION AND PREPARATION OF TESTSAMPLES

9.1 The position from which test samples are takenshall be so located in the product as to yield the clearestpossible information regarding properties in the cross-sectional and longitudinal planes. The recommendedlocations for taking test samples for plates, sectionsand bars are indicated in Fig. 1. Alternatively, in caseof sections, the samples may be taken horn the web.For testing of flat products like plates tensile and bendtest pieces may be cut in the transverse direction.Selection of location of test pieces may also bemutually agreed between the purchaser and themanufacturerlsupplier.

2

IS 2062:2006

“rable 1 Chemical ”Composition

(Clauses 5,8.1 and 8.2)

Grade Quality Lartle Analysis, Percent, Max Carbon Method of

Designation Equivalent’) Deoxidationl)

c Mn s P Si (CE), Mu-x

(1) (2) (3) (4) (5) (6) (7) (8) (9)

E 165 — 0.25 1.25 0.045 0.045 - — Semi-killed or killed

(Fe 290)

E 250 A 0.23 1.50 0.045 0.045 0.40 0.42 Semi-killed or killed

(F.41OW)

E 250 B 0.22 1,50 0.045 0.045 0.40 0.41 Killed

(F.41OW)

E 250 c 0.20 1.50 0.040 0,040 0.40 0:39 Killed

(Fe410W)

E 300 0.20 1,30 0.045 0,045 0,45 0.40 Semi-killed or killed

(Fe 440)

E 350 — 0.20 1.50 0.045 0,045 0.45 0.42 Semi-killed or killed

(Fe 490)

E410 0.20 1.60 0.045 0.045 0.45 0.44 Semi-killed or killed

(Fe 540)

E 450 D 0.22 1.60 0.045 0.045 0.45 0.46 Semi-killed or.killed

(Fe 570)

E 450 E 0.22 1.80 0.045 0,045 0.45 0.48 Semi-killed or killed

(Fe 590)

NOTES

Mn1 Carbon equivalent (CE)bsrsed orrladle analysis = C+ —

+ (Cr+Mo+V) + (Ni+Cu)

6 5 15

2 When the steel is killed by ahsminium alone, the total aluminium content shall not be less than 0.02 percent. When the steel is killedby silicon alone, the silicon content shall not be less than 0.10 percent. When the steel is silicon-ahrminium killed, the silicon content shall

not be less than 0.03 percent and total ahrminium content shall not be less than 0.01 percent.

3 Microalloying elements like Nb, V, Ti and B shall be added singly or in combination. Total microalloyingelernents shall not be more

than 0.25.

4 New grades designation system based on yield stress has been adopted, simultaneously old designations have also been given in

parentheses.

5 Steels of qualities A, B and C are generally suitable for welding processes. The weldablity increases from quality A to C.

6 Copper maybe present between 0.20 to 0.35 percent as mutually agreed to between the purchaser and the manufacturer. The copper

bearing quality shall be designated with a suflix Cu, for example, E 250 Cu. In case of product analysis the copper.content shall be

between 0.17 and 0.38 percent.

7 Nitrogen content of steel shall not exceed 0.012 percent which shall be ensured by the manufacturer by occasional check analysis.

For micro alloyed steel this is to be reduced to 0.009 percent.

8 The steel if required maybe treated with rare earth element for better formability.

9 Lower limits for carbon equivalent and closer limits for other elements maybe mutually agreed to between the purchaser and the

manufacturer.

10 Incidental element— Elements not quoted in Table 1 shall not be intentionally added to steel without the agreement of the purchaser,

other than for the purpose of finishing the heat. AH reasonable precautions shall be taken to prevent the addition from scrap or other

materials used in manufacture of such elements which affect the hsrrdenability, mechanical properties and applicability.

I)TObesuppliedsubject@ theagreement between the purchaser and the manufacturer.

3

IS 2062:2006

Table 2 Mechanical Properties

(Clauses 5, 10.3 and 10.3.1)

Grade

Designation

(1)

E 165

(Fe 290)

E 250(Fe410 W)

E 250(Fe410W)

E 250

(Fe410 W)

E 300

(Fe 440)

E 350

(Fe 490)

E 41-0

(Fe 540)

E 450

(Fe 570)

E 450

(Fe 590)

Quality Tensile

Strength

R.Min

MPa

Yield Stress, R*HMinMPa

Percentage

Elongation,,4

at Gauge

Length, L.O

5.65 ~SO

Min

Internal

Bend

Diameter~inl)

s 25 I >251 I 1 I I 1

(2) (3) (4) (5) (6) (7) (8) (9)

--lCharpy V-Notch

Impact Energy

MinJ

44Room -20”C

Tempz)

(lo) (11)

290 165 23 2t – - -

A 410 250 240 230 23 3t 2t - -

B 410 250 240 230 23 2t 3t 271)

(see Note 3)

c 410 250 240 230 23 2t 3t 272)

(see Note 3)

440 300 290 280 22 2t 3t 50 30

— 490 350 330 320 22 2t 3t 50 25

540 410 -390 380 20 2t 3t 50 25

D 570 450 430 420 20 2t 3t 45 20

E 590 450 430 420 20 2t 3t 45 20

NOTES

1 1 MPa= lN/mm2 = lMN/ml = 0.102 kgt7mm2 = 144.4 psi

2 Temperature of Charpy impact values will be subject to mutual agreement.

3 The more stringent requirements than those given above may be as agreed to between the purchaser and the manufacturer.

‘) t is the thickness of the test piece.

21 Rmm temperature = 25 +2°C for lmPact test

Table 3 Permissible Variation for ProductAnalysis

(Clause 8.2)

Constituent Permissible Variation

Over the Specified Limit,

Percent, Max

Carbon 0.02

Manganese 0.05

Sillcon 0.03

Copper 0,03

Sulphur 0.005

Phosphorus 0.005

9.2 Wherever practicable, the rolled surface of the steelshall be retained on the two opposite sides of the testsamples.

9.3 In case of flat test samples for tensile test, bothsurfaces are normally to be left on the test samples forstrips and plates up to 32 mm thick. At least one rolledsurface shall be Iefl on rectangular test samples takenfrom plates exceeding 32 mm in thickness. Roundtest samples are permitted, but should only be adoptedfor thickness exceeding 20 mm.

9.4 In case of flats up to 16 mm thick, the test sampleshall undergo, if possible, no machining whatever,prior to use as a test piece. If this is not possible, the

4

IS 2062:2006

w1/3 2/3

A

TV 2/3

77&1/3 2/3

-b213 1/3

-L‘\. ,/”

2/3 1/3

I?iaPosition of test pieces

FIG. 1 SmUJCTURALSTEELSECTIONS,POSITIONANDORIENTATIONOFSAMFLE

test sample shall undergo the minimum amount ofmachining.

9.5 Bars below 28 mm shall be tested withoutmachining. In case of bars having diameters orthickness between 28 mm and 71 mm, the bars maybe symmetrically reduced by machining. For barshaving diameters or thicknesses exceeding71 mm, thetest sample may be taken from the position shown inFig. 1.

9.6 In case of plates, strips, sections and flats, bendtests shall be carried out on rectangular test sampleswhich as far as possible should be of the full thicknessof the product, In case of plates, sections and flatsexceeding 28 mm in thickness, it is permissible toremove metal from one side of the test sample beforeusing it as a test piece. The rolled surface of the test

piece shall be on the outer side of the bend during thetest.

9.7 Before test samples are detached, fhll particularsregarding cast number, size and mass of plates,strips, sections, flats and bars in each cast shall befhmished by the manufacturer to the purchaser. Incase of plates the number of plates in each cast shallalso be given.

9.8 Test samples shall be cut in such a mannerthat the deformation is avoided as far as possible.If shearing of flame-cutting is employed, anadequate allowance shall be left for removal bymachining.

9.9 Test samples shall not be subjected to heattreatment unless the material from which they arecut is similarly treated with the material before

5

IS 2062:2006

testing. Any slight straightening of test sampleswhich may be required shall be done cold.

10 TENSILE TEST

10.1 Number of Tensile Tests

Number of test samples shall be 2 per cast/heatand a class of steel product irrespective of cast/heatsize,

10.2 Tensile Test Pieces

The tensile strength, yield strength and percentageelongation of steel-shall be determined from standardtest pieces cut crosswise from plates and strips andlengthwise from sections, flats and bars. The test shallbe carried out as on the standard test pieces preparedin accordance with IS 1608.

10.2.1 As a rule, test pieces with a proportional gaugelength complying with the requirements LO=5.65 4S0should be used for the tensile test, where LOis the gaugelength and SOis the cross-sectional area of the testpiece.

10.2.1.1 Test pieces with a non-proportional gaugelength, other than 5.65 4S0maybe used in which casethe elongation values shall be converted to 5.65 4S0inaccordance with IS 3803 (Part 1).

10.3 Tensile Test

Tensile strength, yield strength and percentageelongaticm when determined in accordance withIS 1608 shall be as given in Table 2.

10.3.1 In case of sections the &ickness of which isnot uniform throughout the profile, the limits ofsizes. given in Table 2 shall be applied according to-the actual maximum thickhess of the piece adoptedfor testing.

10.3.2 Should a tensile test piece break outside themiddle half of the gauge length (see -IS 1608) andthe percentage elongation obtained is less thanthat specified, the test may be discarded atthe manufacturer/supplier’s option and another testmade from the sample plate, strip, section, flat orbar.

11 BEND TEST

11.1 Number of Bend Test

Number of bend test shall be 2 per castheat

Class of Steel Direction ofBendProduct Tests

Plates strips, CrosswiseSections Lengthwise for eachFlats and bars (round typehexagonal, etc) Lengthwise

11.2 Bend Test Piece

The test pieces shall be cut crosswise from platesand strips and lengthwise from sections, flats andbars. When section permits, these shall be not lessthan 40 mm wide. If the manufacturer/supplier sodesires, round, square, hexagonal and -flat bars andstructural sections shall be bent in the fill section asrolled.

11.2.1 In all bend test pieces, the rough edge-arisesresulting from shearing may be removed by filing orgrinding or machining but the test pieces shall receiveno other preparation.

11.3 Bend Test

Bend test shall be conducted in accordance withIS 1599.

11.3.1 For bendtest, the test piece at room temperatureshall withstand bending through 180° to an internaldiameter not greater than that given in Table 2 withoutcracking.

12 IMPACT TEST

12.1 Impact test shall normally be carried out onproducts having thicknesskliameter greater than -orequal to 12mm or subject to mutual agreement betweenthe purchaser and the manufacturer/supplier. The testspecimen is parallel to the direction of rolling and thebase closer to the rolled surface is more than 1 mmfrom it. The notch axis shall be perpendicular to therolled surface.

12.1.1 If stated in the order, impact tests may becarried out on products having a thickness less than12 mm, the dimensions of the test pieces shall be inconformity with IS 1757. The minimum impactenergy values of reduced sizes shall be as shown in--Fig. 2.

12.2 Thk testis carried out using a V-notch test piece(see IS 1757) the value for consideration being thearithmetic mean of the results obtained on three testpieces taken side by side tlom the same product (seeTable 2). Temperature of Charpy impact test will besubject to mutual agre~ment.

12.3 The test sample-shall be taken from the tlickestproduct. If the test sample taken from tie thickestproduct rolled from a cast meets the requirements, thewhole cast shall be deemed to meet the requirementsof the test, if not, the test shall be performed on asection of next lower thickness rolled from same cast,if it meets the requirements-specified, this particularthickness as also other sections of lower thickness shallbe deemed to satisfythe specification. If this thicknessalso does not meet the requirements, the test shall becarried out on the next lower thickness and so on,because the toughness of the product will be dependenton the rolling direction as well as on the section size,

6

IS 2062:2006

w“uw“=

v2’u

Iico

27 1

26

25

26

23

22

21

20

19

18

17

16

1s

14.

13 , Is 6 7

,8 9 10

Width of test piece, mm

FIG. 2 MINIMUMIMPACTENERGYVALUESFORTESTPIECESWITHA WmH BETWEEN5 mm -

12.3.1 One test sample shaIl be taken fi-omthickestproduct per caswheat.

12.4 The material represented shall be deemed tocomply with the standard, if the average value of3 test specimens, meets the requirements given inTable 2 provided no individual value shall be less than70 percent of the specified value. If the averagevalue of the-three Charpy impact tests fails to complyby an amount not exceeding 15 percent of thespecified minimum average value, three additional testpieces from the same sample shall be tested and theresults added to those previously obtained and a newaverage calculated. Provided this new averagecomplies with the specified requirement, the materialrepresented shall be deemed to comply with thisstandard.

13 Y GROOVE CRACKABILITY TEST

Y groove crackability tests may be carried out in

10mm

accordance with IS 10842 for TIroductsof onlv GradeE 250 C material havirrg thick&ss 12 mm an~ above,if specifically agreed to between the purchaser andthe manufacturer/supplier.

NOTE—The Y groove crackability test will not be applicable

forroundsandit is mainly for plates and sections.

14 OTH-ER TESTS

14.1 The material maybe subjected to non-destructingtesting to determine soundness of material subject tomutual agreement between the purchaser and themanufacturer/supplier.

14.2 Metallurgical tests for grain size, directionality,inclusion content to be carried out subject tomutual agreement between the purchaser and themanufacturer/supplier.

15 DIMENSIONS

Unless otherwise agreed to between the purchaser and

7

IS 2062:2006

the manufacturer/supplier, the nominal dimensions ofro1led products conforming to this standard shall be inaccordance with the relevant Indian Standard.Currently available Indian Standard are listed inTable 4.

Table 4 Indian Standards Which Give NominalDimensions of Rolled Steel Products

Products Relevant IndianStandard

Beam, column, channel and 1s 808

angle section

Tee bars 1s 1173

Bulb angles IS 1252

Plates, strips and flats Is 1730

Flats Is 1731

Round and square bars IS 1732

Bulb flats IS 1863

Sheet piling sections IS 2314

Channel sections 1s 3954

Track shoe sections IS 10182 (Part 1)

IS10182(Part2)

Parallel beam and IS 12778

column sections

16 TOLERANCES

Unless otherwise agreed to between the purchaser andthe manufacturer, the rolling and cutting tolerancesfor steel products conforming to this standard shall bethose specified in IS 1852. Stricter tolerances maybefollowed, if agreed to between the purchaser and themanufacturer/supplier.

17 RETESTS

Should any one of test pieces fust selected fail to passany of the tests specified in this standard, two furthersamples shall be selected for testing in respect of eachfailure. Should the test pieces from both theseadditional samples pass, the material represented bythe test samples shall be deemed to comply with therequirements of that particular test. Should the test

pieces from either of these additional samples fail,the material represented by the test -samples shallbe considered as not having complied with thisstandard.

18 CALCULATION OF MASS

The mass of steel shall be calculatedon the basis thatsteel weighs 7.85 g/cm3.

19 DELIVERY

Subject to prior agreement between the purchaserand the manufacturer/supplier, suitable protectivetreatment may be given to the material afterrolling.

20 MARKING

20.1 Each product, with the exception of round, squareand hexagonal bars and flats, shall carry a tag or bemarked with the manufacturer’s name or trade-mark.Bars and flats shall carry a tag bearing themanufacturer’s name or trade-mark. Designation ofsteel should also be similarly marked on the productor tag.

20.2 Every heavy, medium structural mill and platemill product shall be marked with the cast number.Platespoduced tlom strip in coil form shall be markedwith cast/heat number on top plate of each pile/packet.

20.3 The ends of the rolled products shall be paintedwith a colour code, as agreed to between the purchaserand the manufacturer/supplier.

20.4 BIS Certification Marking

The material may also be markedMark.

with the Standard

20.4.1 The use of the Standard Mark is governed bythe provisions of the Bureau of Indian Standards Act,1986 and the Rules and Regulations made thereunder.The details of conditions under which the licence forthe use of Standard Mark may be granted tomanufacturers or producers may be obtained from theBureau of Indian Standards.

8

IS 2062:2006

ANNEX A

(Foreword)

COMMITTEE COMPOSITION

Wrought Steel Products Sectional Committee, MTD 4

Organization

SAIL, Rourkela Steel Plant, Rourkela

All India Induction Furnace Association, New Delhi

Atomic Minerals Division, Hyderabad/New Delhi

Bharat Heavy Electrical Ltd, Bhopal

Central Boilers Board, New Delhi

Consumer Protection Council, Rourkela

Defence Metallurgical Research Lab (DMRL), Hyderabad

DGS & D, Bhilai Nagar

Escorts R &.D Centre, Faridabad

Institute of Steel Development and Growth, Kolkata

Jindal South West Steel Ltd, Vasind/Vijaynagar

M. N. Dastur & Co Ltd, Koikata/New Delhi

Ministry of Defence (DGOFB), Kolkata

Ministry of Defence (DGQA), Ichapur

Ministry of Railways (RDSO), Lucknow

Ministry of Steel (Govt of India), New Delhi

Mukand Ltd, Thane

National Metallurgical Laboratory, Jamshedpur

National Physical Laboratory, New Delhi

Nuclear Fuel Complex, Hyderabad

Power Grid Corporation, Gurgaon

Rashtriya lspat Nigam Ltd (VSP), Vishakhapatnam

SAtL, Bhilai Steel Plant, Bhilai

SAIL, Bokaro Steel Plant, Bokaro

SAIL, Central Marketing 01 ganization, Kolkata

SAIL, Durgapur Steel Plant, Durgapur

SAIL, Research & Development Center for iron & Steel, Ranchi

SAtL, Salem Steel Plant, Salem

Steel Furnace Association of India, New Delhi

Steel Re-rolling Mills Association of lndiA Mandi Gobindgafh

Sunflag Iron & Steel Co Ltd, Faridabad, Bhandara

Tata Motors Limited, Pune

Representative(s)

DR SANAKIWSHRA(Chairman)SHRIN. K. SOOD(Alternate)

SHRJR. P. VARSHNEV

SHJUC. M. Kotru (Alternate)DR H. C. ARORA

DR ADARSHKOMAR(Alternate)SHRJR. K. SmH

SsssuK. K. GOFTA(Alternate)SHRJV. K.GOEL

SHSUM. L. AHUJA (Alternate)SHIUB. VAtDYANATMN

SHRJA. V. ATWNALE

SHRIV. LALITHAKUMAtU(Alternate)SHRI S. K. GANOULY

SHJUB. S. RANA (A[ternate)SHJUALOK NAYAR

DR R. K. P. Strwr

SHRJJAYANTAKUMARSAHA(Alternate)SHRJM. K.M,WNSWARJ

SHRIS. K. HEGOE(Alternate)Smu SUBHALiRATASENGUPTA

SHRJR. K. TYAGI (Alternate)SHRtS. K. GHOSH

SHJUS. BHAmACHARYA(Alternate)JotNTCONTROLLER

QUALtTVASSOMNCEOFFtcER(Alternate)JorNTDEWCTOR(CHEMICAL)

JotNTDIRECTOR(I & L) (Alternate)SHRJS. S. SAHA

SHtUA. C. R. DAS (Alternate)SHruC. H. SHARMA

SHRIK. R, SIUNWASAN(A/ternu/e)DR S. TARAFDAR

DR R. GOPALKRJSHNAN(Aherrrate)DR ATWLKUMARGOPTA

SHP.IR. C. ANANDANi(Alternate)SHRIB. GOPALAN

SHRIK. K. AGIWWAL

SHJUANtL AGRAWAL(A1/errrare)SHJUR.-RANJAN

SHRJS. MONDAL (Alternate)SHRID. B. SHRJVASTAVA

SHRJK. K. KUMAR (Alternate I)SHRJP. K, DATTA (Alternate 11)

SHRJG. B. PRADHAN

DR M. M. S, SODH1(Alfernate)SHRJB. V. S. PANDIT

REPRESENTATIVE

DR S. K. CHAODHUIU

“DRD. MUKHERJEE(Ahernarel)SHRJB. K. PANIGRAM(AlfernaIe II)

SHSUS. SISOD]A

SHRJH. K. ARORA(Alternate)SHRJM. S. UNINAYAR

SHRJR. P. BHATIA

SHRJH. D. KHERA(A/ternafe)SHRI R, K. MALHOTRA

SHRtR. K. VERMA (A/ternate)SHRIJ, D. HAIUDAS

SHRJB. R. GALGALt(Alternate)

9

IS 2062:2006

Orgarrizatiorr

Tata Steel Ltd, Jamshedpur

Thyssenkrupp Electrical Steel India Pvt Ltd, Distt Nasik

Usha Beltron Ltd, Kolkata

Visvssvaraya Iron& Steel Ltd, Bhadrawati

“Impersonal capacity [403, Udaigiri, Kaushambi, Distt Ghaziabad(U.P.)]

BIS Directorate General

Representative(s)

DR DEBASHHHBHATTACHARCIEE

Dk M. D. MAHESHWASJ(Alternate 1)

SHRIM, C. SAOHU(Alternate 11)

SHSUR. PRABI+AKAR

SHFUJ. SWENIVAS(Alternate)

REPRSSE~A~E

DR S. S. ANANO

SHRI N. MITRA

Srjiu S. K.GUPTA, Scientist ‘F’ & Head (MTD)

[Representing Director General (Eq@cio)]

Member SecretarySHIUDEEPAXJAN

Scientist ‘E’ (MTD), BIS

Flat Products %bcotnrnittee, MTD 4:3

Tata Steel Ltd, Jamshedpur

Apex Chambers of Commerce, Ludhiana

Essar Steels Ltd, Distt Surat

Federation of Engineering Industries of Indi~ New Delhi

GKW Limited. Mumbai

Indian Gas Cylinders, Faridabad

Indian Oil Corporation Limited, Noida

Ispat Industries Limited, Dolvi

Maruti Udyog Ltd, Gurgaon

The Tin Plate Company of India Ltd, Jamshedpur

Veiny Containers Ltd, Hyderabad

In personal capacity (248, A/rash Darhan Society, Mayur i’ihar-1,Delhi-l 10091)

DR M. D. MAHESHWARI(Convener)

SHRIM. C. SADHU(Mferrrale)

SHRIP. D. SHArwfA

SHRIR. K. BALASUBRAMAFUAM

SHSOS. R. BHArr (Alternate)SHRIH. L. BHARDWN

SHsr H. L. BANSAL(Alternate)SHRIB. R, BAPAT

SHRIBHASXARMAZUMDAR(Alternate)SHRIE. M. PATEL

SHIUM. K. JHA

SHiUT. BANDHOPADHVAY(Alternaie)SHIURAMBIURSHSIPiGH

SHSURNENDERAK. VERMA (Alternate)SHIUSsrrwrm SUDHIR

SHIUSUWLMALHOTRA(A1/ervrafe)SHRIT. K. GHOSH

SHRIA. K. GHOSH(Alternate)SHurP.K.MATHUR

SHIU AVTAR SrNoH

10

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Review of -Indian Standards

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This Indian Standard has been developed from Dot: No. MTD 4 (4590).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

●

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; Printed at Simco Printing Press, Delhi

AMENDMENT NO. 1 MARCH 2009TO

IS 2062:2006 HOT ROLLED LOW, MEDIUM AND HIGH TENSILESTRUCTURAL STEEL

(Sixth Revision)

(Page 1, cku.re 2, andpage 8, Table 4) – Delete reference to 1731:1971 Dimensions for steel flatsfor structural and general engineering purposes (@f revision).

(Page 2, clause 3.4) – Insert anew subclause as given below:

‘3.5 Accelerated Cooling — Itis a process of faster cooliig of the product after ftish rolling followed by aircooling to impart fine fkrritic grain structure. This process ensures achieving specified mechanical propertiesincluding impact toughness in the rolled product.’

(Page 2, clause 5 ) – Substitute the following for the existing

‘There shall be 8 grades of steel as given in Tables 1 and 2. For grades E 250 to E 450 there shall be 4 sub-qualities (A, B~ BO& C) and for grades E 550 to E 650 there shall be 2 sub-qualities (A & BR).’

Sub-qualities A, B~ BOand C indicate impact test and deoxidation mode as follows

A Impact test not required, semi-kdledMledBR Impact test optioml; at room temperature if require~ killedBO Impact test mandatory at O“C,killedc Impact test mandatory at –20”C, killed’

(Page 2, claure 6) — Substitute the ‘accelerated cooling’for ‘normaMng robgkmtrolkd rolling’.

(Page 2, clause 7.3) – Substitute the folIowing fw the exa ~

‘Repair by welding as mentioned in 7.2.1 is not permissible for gmde desiion E 250 C, E 300 to E 650.’

(Page2, chruse 9.1) – Insertthe following note below the existing clauw

‘NOTE— However,ineaseoftheplatesbeyond12mminthickness,prodsseedfromcuttingofHRcoi~thesamplefixtensiletestingshallbetakenonlyintransversedirection.’

(Page 3, Table 1) – Substitute the following for the existing table:

Table 1 Chemical Composition(Clauses 5,8.1 and8.2)

Grade Quality Ladk AssalysigPereen~Max Carbon’) MethodofDesignation Equivalent ikoxidation’~

c MO s P Si (cE)Xa

(1) (2) (3) (4) (5) (6) (7) (8) (9)

A 0.23 1.50 0.045 0.045 0.40 0.42 semi-killed killed

E 250BRBo

0.22 1.50 0.045 0.045 0.40 0.41 Killed

c 0.20 1.50 0.040 0.040 0.40 0.39 Killed

A semi-killed killed

E 300 BR 0.20 1.30 0.045Bo

0.045 0.45 0.40Killed

c

I

,,,,

Price Group 21

.

.

?

Amend No. 1 to IS 2062:2006

Grade Quality

Designation

c

A

E 350BR 0.20BO

c1 1

A

E410

n

BR 0.20Boc

AE 450 0.22

BR

AE 550 0.22

BR

““ t---+-l022A

E 650 0.22BR

NOTES

Ladle Analysis, Percent,Max

Mn

1.50

1.60

1.60

1.65

1.70

1.70

s

0.045

0.045

0.045

0.020

0.020

0.015

Mn—

P

0.045

0.045

0.045

0.025

0.025

0.025

Si

0.45

0.45

0.45

0.50

0.50

0.50

Semi-killed/killed

0.42Killed

Semi-killed/killed

0,46Killed

Serni-kilIed/killed0.48

Killed

Semi-killed/killed0.50

Killed

050 l-%%+Semi-killed/ killed

0.52Killed

(Cr+Mo+V) (Ni+Cu)1 Carbonequivalent(CE) baaed 0ssladle anatysis= c + — + +

6 5 152 When the steel is killed by ahsminiumalone, the total aluminhmr content shall not be leas than 0.02 percent. When the-steelis killed by silicon alone, the silicon content shall not be less than 0.10 pereent. When the steel is silicon-alurninksmkilled, thesilicmrcontent shall not be less than 0.03 percentand total aluminiumcontent shall not be less than 0.01 percent.

3 Mlcroalloyingelements like Nb, V,Ti and B may be added singly or in combination Totalmicrordloyingelements shall notbe morethan 0.25.

4 New gradesdesignation system based on yield stress has been adopted.

5 Steelsof qualities & BR,BOandC aregenerrdlysuitable for welding proccs..es.The weldablity increases fiwmquality AtoC for grade designationE250.

6 Coppermaybe present between 0.20 to 0.35 pereent as mutuallyagreed to betwwrsthe purchaser and the manutheturer.Thecopper bearing qusdityshall be designated with a suffix Cuj for example, E 250 Cu. hr case of product analysis the coppercontentshall be between 0.17 and 0.38 perecnt.

7 Nitro8en content of steel shall not exceed 0.012 percent which shall be ensured by the manufacturer by occasional checkanalysis.

8 The steel if required maybe treated with rare earth element for better forrntillity.

9 Lower limits for carbon equivaknt and closer limits for other elements maybe mutually agreed to behveertthe purchaserandthe manufacturer

10 Alloyingelements such as Cr, NI, and Mo may be added singly or in combination and shall not be more than 0.50?4for E600 and 0.60??for E 650.

11 lrrcioknkdekrnerrt — Elements not quoted in this table and other than giversin Notes 3,6,8 & 10 shall not be intentionallyadded to steel without the agreement of the purchaser, other than for the purpose of finishhg the heat. All rcasortrdrleprecautions shall be takersto prevent the addition ti’omscrap or other materials used in manufacture of such elements whichaffect the Irardenability,mechanical propertiesand applicability.

v To be suPPll~, subject to agreement between h pirdmser ad r’mmuf-.

,,,

2

Amend No. 1 to IS 2062:2006

(Page 4, Table 2) – Substitute the following for the existing table:

Table 2 Mechanical Properties(Clause 5,10.3 and 10.3.1)

Gradedesignation

(1)

E 250

E 300

E 350

E 410

E 450

E 550

E 600

E 650

QuatitY

(2)

A

TensileStrength

R.

&fin

MPa

Yield Stress, R,H

A4in

MPa

(3)

+

BR410

BO

71--YBR 440BO

71---i

BR490

BO

=1-+

BR540

Bo

c

AlI

---1BR570

BO

c1

--lA650

BR

-1A 730BR

PercentageElongationA,

at GaugeLength,

LO=5.65+3,Min

(7)

23

22

22

20

20

12

12

12

Internal Charpy

Bend Impact TestDiameter

Max

(See Note 2)

Temp Mins25 >25

‘T J

(8) (9) (lo) (11)

RT 272t 3t

o 27

(-)20 27

RT 272t -

0 27

(-)20 27

RT 272t -

0 27

(-)20 27

RT 252t -

0 25

(-)20 25

RT 202.5t -

0 20

(-)20 20

3.ot - - ‘-RT 15

J

3.5t - -RT 15

4.ot - -RT 15

NOTES1 MPa = lN/mm2= lMN/m2 = 0.102 kgt7mm2=144.4psi2 Bend test not required for tlickaess ~25 mm for gra&s E300 to E650. ‘t’ is the thickness of the test piece.3 For subqoality BR impact test is optional at room temperature(25+2°C), if required.

(Page 4, Table 3) – Substitute the following for the existing entry:

Carbon <0.20 0.02Carbon zO.20 0.03

(Page 6, clause 12.1) – Substitutethe following for the existing clause:

‘Impact test shall normally be carried out on products having thickness/diameter greater than or equal to 12 mm.The test specimen is parallel to the direction of rolling and the base closer to the rolled surfhce is more than 1mm fkomit. The notch axis shall be perpendicular to the rolled surface.’

3

Amend No. 1 to IS 2062:2006

(Page 6, clause 12.1.1) – Substitutethe following for the existing

‘The minimum impact energy values of reduced sizes shall be as shown in Fig. 2 for grades E250, E300, E350.For other grades, the values shall be reduced in direct proportion to the cross-sectional area of the test piece.’

(Page 6, clause 12.2, lastsentence) – Delete.

(Page 8, clause 16) – Substitute the following for the existing clause

‘Unless otherwise agreed to between the purchaser and the manufwturer, the rolling and cutting tolerances forsteel products conforming to thk standard shall be those specified in IS 1852 except for parallel flange beamsand columns covered by IS 12778 for which the tolerances shall be as per IS 12779:1989 Rolling and cuttingtolerances for hot rolled parallel flange beams and column sections. Other tolerances may be follow~ withiithe total tolerance range as specified in IS 1852 and IS 12779 as applicable.’

(Page 8, c[ause 17) – Substitute the following for the existing clause:

’17 RETESTS

If a test does not give the specified results, retesthortingk-treatment shall be carried out as per the relevantclauses of IS 8910.’

/,

I

(h4TD4)

4ReprographyUni~ BIS,New Delhi India

,<

I