TIS 1479-2541 (1998) (English): Hot-rolledcarbon steel coil, strip, plate andsheetfor general structure1 of 14Notification of the Ministry of ndustryNo.2491 (B.E.2541(1998))ssued under the ndustrial Product Standards ActB.E.2511(1968)Subject : Amending to Thai ndustrial Standard forHot-Rolled Carbon Steel Coil, Strip, Plate and Sheet for General Structure(Amendment No.1)WhereasitisdeemedexpedientappropriatetorevisetheThaindustrial StandardforHot-RolledCarbonSteelCoil,Strip,PlateandSheetforGeneralStructure (TS 1479-2540(1997).ByvirtueofSection15ofthendustrialProductStandardsActB.E.2511(1998), the Minister of ndustry hereby issues a notification amending the Thai ndustrial Standard for Hot-Rolled Carbon Steel Coil, Strip, Plate and Sheet for General Structure (TS 1479-2540(1997) which is attached to the Notification of Ministry of ndustry No.2338(B.E.2540(1997), dated 30 December, B.E.2540(1997) as follows:1.The numberof the standardisamended from"TS1479-2540to"TS1479-25412.The clause 1.3 is added" 1.3This standard does not cover :1.3.1 hot-rolledcarbonsteelcoil,strip,plateandsheetforother purposes which have been already specified inotherstandard,or comply to any standard;1.3.2 hot-rolledcarbonsteelcoil,strip,plateandsheetforsubsequent re-rolling.3.The clause 2.2 is added" 2.2HOT-ROLLEDCARBONSTEELCOL,STRP,PLATEANDSHEET FORSUBSEQUENTRE-ROLLNG:Carbonsteelsubjectedtobere-rolledbysuchanon-reheatrollingprocessthatdoesnotincludeskin pass, temper rolling, or roll forming.This ministerial notification shall come into force 60 days as from the date of its publication in the Government Gazette.Given on 13 July B.E.2542(1999)Minister of ndustryPublished in the Government Gazette Vol.116, Special Part 107 ngor., dated 24December B.E.2542(1999)2 of 14n the event of any doubt or misunderstanding arising from this translation, the standard in Thai will be held to be authoritative.Thai ndustrial StandardForHot-Rolled Carbon Steel Coil, Strip, Plate and Sheet for General StructureTS 1479-2541(1998)1.Scope1.1Thisstandardspecifiestypes,appearancesandgrades,basicmass,sizesand tolerances,chemicalcompositions,generalrequirements,markingandlabelling, sampling and criteria for conformity and testing for hot-rolled carbon steel coil, strip, plate and sheet for general structure.1.2Thisstandardcovershot-rolledcarbonsteelcoil,strip,plateandsheetforgeneral structure i.e. bridge structure, feet, rolling stock and other structures.2.DefinitionsFor the purpose of this standard the following definitions apply:2.1HOT-ROLLEDCARBONSTEELCOL,STRP,PLATEANDSHEET:hereinafter referredtoas "STEEL :Carbonsteelhavingchemicalcompositionasspecifiedin Table 8 and hot rolling in plate form.2.2MLLEDGE:Edgeof"steelgeneratedbyhotrollingasitis,nottobecutand possibly containing some irregularities such as cracked or torn edges or thin edges.2.3CUT EDGE : Edge of "steel generated by cutting after hot rolling.2.4NORMALCUTEDGE:Edgeof"steelgeneratedbyfirstcuttingtotherequired width and length.2.5RESHEARD OR FNE CUT EDGE : Edge of "steel generated by re-cutting after the first cutting.2.6SLTTEDEDGE:Edgeof"steelgeneratedbycuttingtothedeliveryrequired dimension.3 of 143.Types, Appearances and Grades3.1"Steel classifies into 4 categories i.e.3.1.1Steel coil i.e. "steel in coil form 600 mm and over in width3.1.2Steel strip i.e. "steel less than 600 mm in width in coil form3.1.3Steel plate i.e. "steel of 3.15 to 100 mm in thickness3.1.4Steel sheet i.e. "steel up to but not including 3.15 mm in thickness3.2"Steel classifies by types of edges into 2 types i.e.3.2.1Mill edge3.2.2Cut edge3.3"Steel classifies by minimum tensile strength as given in Table 10 into 4 grades i.e.3.3.1SS 3303.3.2SS 4003.3.3SS 4903.3.4SS 5404.Basic Mass, Sizes and Tolerances4.1Basic mass of "steel shall be 7.85 kg per mm thickness per m2 area and given for the recommendation.4.2Dimensions and tolerances4.2.1DimensionsShall be in accordance with Table 14.2.2Tolerances4.2.2.1Thickness shall be as given in Table 24.2.2.2Width shall be in accordance with Table 34.2.2.3Length shall be in accordance with Table 4Compliance is checked by the test of clause 9.1.4.3Camber tolerances4.3.1Cut edge steel plate and steel sheetShall not exceed the values given in Table 54.3.2Cut edge steel coil and steel stripShall not exceed the values given in Table 6Compliance is checked by the test of clause 9.24.4Out-of-square (applicable only to cut edge steel plate and steel sheet)Shall not exceed 1% of the width.Compliance is checked by the test of clause 9.3.4.5Flatness tolerances (applicable only to steel plate and steel sheet)Withthesheetlyingunderitsownweightonflatsurface,thedeviationofflatness shall not exceed the values given in Table 7.Compliance is checked by the test of clause 9.4.4 of 14Table 1 : Dimensions for steel plate(clause 4.2.1)Units in mmDimension Steel coil Steel strip Steel plate Steel sheetThickness Not exceed 20 Not exceed 20 3.15 to 100 Less than 3.15Width 600 or over Less than 600 Shall be agreedbetween themanufacturer andpurchaserShall be agreedbetween themanufacturer andpurchaserLength - - Shall be agreedbetween themanufacturer andpurchaserShall be agreedbetween themanufacturer andpurchaserNote Insideandoutsidediameterofrollforsteelcoilandsteelstriparesubjectedtoagreementbetween the manufacturer and purchaser.Table 2 : Thickness tolerances(clause 4.2.2)Units in mmTolerancesThicknessLess than1 600in width1 600 to lessthan 2 000in width2 000 to less than 2 500in width2 500 to less than 3 150in width3 150to 4 000in widthLess than 1.25 0.16 - - --1.25 to less than 1.60 0.18 - - --1.60 to less than 2.00 0.19 0.23 - --2.00 to less than 2.50 0.20 0.25 - --2.50 to less than 3.15 0.22 0.29 0.29 --3.15 to less than 4.00 0.24 0.34 0.34 --4.00 to less than 5.00 0.45 0.55 0.55 0.65-5.00 to less than 6.30 0.50 0.60 0.60 0.75 0.756.30 to less than 16.00 0.55 0.65 0.65 0.80 0.8016.00 to less than 25.00 0.65 0.75 0.75 0.95 0.9525.00 to less than 40.00 0.70 0.80 0.80 1.00 1.0040.00 to less than 63.00 0.80 0.95 0.95 1.10 1.1063.00 to 100.00 0.90 1.10 1.10 1.30 1.305 of 14Table 3 : Width tolerances(clause 4.2.2.2)Units in mmTolerancesMill edge Cut edgeWidth ThicknessSteel plateandsteel stripSteel coilandcut lengthNormal Resheared SlittedLess than 3.15 +50+200.33.15 to less than 6.00 +50+300.56.00 to less than 20.00 +100+40Lessthan16020.00 or over- -+100--Less than 3.15 +50+200.43.15 to less than 6.00 +50+300.56.00 to less than 20.00 +100+40160 tolessthan25020.00 or over- -+150--Less than 3.15 +50+200.53.15 to less than 6.00 +50+300.56.00 to less than 20.00 +100+40250 tolessthan40020.00 or over+Not Specifies0-+150--Less than 3.15 +100+300.53.15 to less than 6.00 +100+300.56.00 to less than 20.00 +100+50400 tolessthan63020.00 or over+Not specifies0+200+150--6 of 14Table 3 : Width tolerances(continued)Units in mmTolerancesMill edge Cut edgeWidth ThicknessSteel plateandsteel stripSteel coilandcut lengthNormal Resheared SlittedLess than 3.15 +100+403.15 to less than 6.00 +100+406.00 to less than 20.00 +100+60630 tolessthan1 00020.00 or over+Not specifies0+250+150--Less than 3.15 +100+403.15 to less than 6.00 +100+406.00 to less than 20.00 +150+601 000 tolessthan1 25020.00 or over+Not specifies0+300+150--Less than 3.15 +100+403.15 to less than 6.00 +100+406.00 to less than 20.00 +150+601 250 tolessthan1 60020.00 or over+Not specifies0+350+150--Less than 3.15 +100+403.15 to less than 6.00 +100+406.00 to less than 20.00 +1.2%0+601 600or over20.00 or over+Not specifies0+400+1.2%0--7 of 14Table 4 : Length tolerances(clause 4.2.2.3)Units in mmLength Thickness Normal cut edge ReshearedLess than 6.00 +250+50Less than 6 3006.00 or over +250+100Less than 6.00 +0.5%0+1006 300 or over6.00 or over +0.5%0+150Note This tolerance shall be applied to resheared or fine cut edge steel plate less than 20 mmin thickness.Table 5 : Camber tolerance for cut edge steel plate and steel sheet(clause 4.3.1)Units in mmCamber tolerancesLength250 to less than630 in width630 to less than1 000 in width1 000 or overin widthLess than 2 500 5 4 32 500 to less than 4 000 8 6 54 000 to less than 6 300 12 10 86 300 to less than 10 000 20 16 1210 000 or over 20 in any10 000 length16 in any10 000 length12 in any10 000 lengthNote Forsteelplateandsteelstriplessthan250mminwidth,thecambertolerancesgivenin Table 6 shall be applied.Table 6 : Camber tolerance for cut edge steel coil and steel strip(clause 4.3.2)Units in mmWidth Camber tolerancesin any 2 000Less than 250250 or over858 of 14Table 7 : Flatness tolerance for steel plate and steel sheet(clause 4.5)Units in mmFlatness toleranceThicknessLess than1 250in width1 250 to lessthan 1 600in width1 600 to lessthan 2 000in width2 000 to lessthan 3 000in width3 000or overin widthLess than 1.60 18 20 - - -1.60 to less than 3.15 16 18 20 - -3.15 to less than 4.00 16 - -4.00 to less than 6.00 14 24 256.00 to less than 10.00 13 21 2210.00 to less than 25.00 12 16 1725.00 to less than 40.00 9 13 1440.00 to less than 63.00 8 11 1163.00 to 100.00 7 10 10Note Thesetolerancesareonlyapplicabletosteelplateandsteelsheet2000mminlength. Tolerancesforsteelplateandsteelsheetlessthan2000mminlength,thefulllength shall be used.5.Chemical Composition5.1Chemical compositionThechemicalcompositiondeterminedbymeansofcastanalysisshallbein accordancewiththevaluesgiveninTable8,andwhendeterminedbyproduct analysis, the values given in Table 8 may be varied by Table 9.Testing shall be made by general chemical analysis or other equivalent method.Table 8 : Chemical composition (cast analysis)(clause 2.1 and 5.1)Units in %Chemical compositionGrades Cmax.Mnmax.Pmax.Smax.SS 330 - - 0.05 0.05SS 400 - - 0.05 0.05SS 490 - - 0.05 0.05SS 540 0.30 1.60 0.04 0.049 of 14Table 9 : Chemical composition tolerances (product analysis)(clause 5.1)Units in %Composition TolerancesCarbon 0.03Manganese 0.05Phosphorous 0.01Sulphur 0.016.General Requirements6.1General requirements"Steel shall be with smooth surface and free from such defects that are detrimental to practical use, such as rolled-in scale and lamination.Compliance is checked by visual inspection or other equivalent method.6.2Mechanical properties6.2.1Tensile strength and elongationShall be as give in Table 10Testing shall be in accordance with JS Z 2241. As to a test piece specified in JS Z 2201 shall be applied.6.2.2BendingWhentestedasdirectedinclause9.5,thetestpieceshallbebentwithout cracking on the outside surface of the bent portion.10 of 14Table 10 : Tensile strength and elongation(clause 6.2.1)Yield strength TensilestrengthThicknessMPaThicknessmmGradeNotmorethan16Morethan 16to 40Morethan40MPa mmTestpiece No.Elongationmin.%More than 55 26More than 5 to 16 1A 21More than 16 to 501A 26SS 330 205 195 175 330-430More than 404 28More than 5 5 21More than 5 to 161A 17More than 16 to 501A 21SS 400 245 235 215 400-510More than 40 4 23More than 55 19More than 5 to 161A 15More than 16 to 50 1A 19SS 490 285 275 255 490-610More than 404 21More than 55 16More than 5 to 16 1A 13SS 540 400 390 - Min. 540More than 16 to 501A 177.Marking and labelling7.1Each coil of steel coil and steel strip and each bundle of steel plate and steel sheet shall bear at least number, letter or mark indicating legibly and clearly the following information:(1)Type and grade;(2)Width x length x thickness expressed in mm x mm x mm ;(3)Number of sheets in each bundle (steel plate and sheet), mass expressed in kg (steel coil and steel strip) weighing;(4)Heat number or the lot number;(5)Name of manufacturer or factory, or registered trade markncaseforeignlanguageisused,themeaningshallcorrespondtothatinThai specified above.11 of 148.Sampling and criteria for conformity8.1Lot:"Steelofthesametype,gradeanddimensionmadebythesameprocess which are manufactured or delivered or purchased at the same time.8.2Samplingandacceptanceshallcomplywiththesamplingplanbeloworother technically equivalent plan.8.2.1Samplingandacceptancefortestingondimension,cambertolerancesand general characteristics for steel coil and steel strip.8.2.1.1Samples shall be randomly taken from the samelotasspecifiedin Table 11.8.2.1.2Providedthatallsamplesfailingtocomplywitheachofthe requirementsofclauses4.2,4.3and6.1doesnotexceedthe acceptance number specifiedin Table11,thatlotshallbedeemed to comply with the requirements.Table 11 : Sampling plan for testing on dimension, camber tolerancesand general characteristics for steel coil and steel strip(clause 8.2.1)Lot sizecoilSample sizecoilAcceptance numberUp to 50 3 051 or over 13 1Note For testing on general characteristics, sample of 2 m in length shall becut from either end of a coil 500 mm long.8.2.2Samplingandacceptancefortestingondimension,cambertolerances, general characteristic, out-of-square and flatness for steel plate and sheet8.2.2.1Samples shall be randomly taken from the samelotasspecifiedin Table 12.8.2.2.2Providedthatallsamplesfailingtocomplywitheachofthe requirements of clauses 4.2, 4.3,4.4,4.5and6.1doesnotexceed theacceptancenumberspecifiedinTable12,thatlotshallbe deemed to comply with the requirements.Table 12 : Sampling plan for testing on dimension, camber tolerancesand general characteristics for thick and thin steel sheet(clause 8.2.2)Lot sizecoilSample sizecoilAcceptance numberUp to 100 3 0101 or over 13 112 of 148.2.3Sampling and acceptance for testing on chemical composition8.2.3.1Threesamplescomplyingwithclause8.2.1.2or8.2.2.2shallbe taken.8.2.3.2Provided that all samples meet the requirements of clause 6.2, that lot of steel plate shall be deemed to comply with the requirements.8.2.4Sampling and acceptance for testing on mechanical properties8.2.4.1Threesamplesshallberandomlytakenfromthesamelotofthe massnotexceed1000tons,whenthemassofthelotexceeds1 000 tons, additional three samples shall be taken. All samples shall eachbeofadequatesizeformakingthetestpiecefortestingon tensile strength, elongation and bending.8.2.4.2Provided that all samples meet the requirements of clause 6.2, that lot of steel plate shall be deemed to comply with the requirements.8.3Criteria for conformityProvidedthatthesamplesofsteelplatemeetalltherequirementsofclauses 8.2.1.2,8.2.2.2,8.2.3.2and8.2.4.2,thatlotshallbedeemedtocomplywiththis standard.9.Testing9.1Dimensions9.1.1Thickness9.1.1.1ApparatusShall be made by means of a measuring device having an accuracy of 0.005 mm.9.1.1.2Measurement(1)Steel coil and steel stripn case of mill edge (applicable only to steel coil) the thickness shall be measured not less than 25 mm from each edge for test piecehaving50mmoroverinwidth.Asfortestpiecehaving lessthan50mminwidth,thethicknessshallbemeasuredat least three points of each edge at the centre of the test piece.ncaseofcutedge,thethicknessshallbemeasurednotless than15mmfromeachedgefortestpiecehaving30mmor over in width. As for test piece having less than 30 mm in width, thethicknessshallbemeasuredatleastthreepointsofeach edge at the centre of the test piece.(2)Thick and thin steel sheetncaseofmilledge,thethicknessshallbemeasurednotless than 25 mm from all edges at least three points of each edge.ncaseofcutedge,thethicknessshallbemeasurednotless than 15 mm from all edges at least three points of each edge.9.1.1.3ReportThe average thickness value shall be reported.9.1.2Width9.1.2.1Shall be made by means of a measuring device having an accuracy of 0.1 mm at the position approximately 100 mm from the both ends. The average width value shall be reported.9.1.2.2Thewidthofslittededgesteelplateshallbemadebymeansofa measuring device having an accuracy of 0.05 mm.13 of 149.1.3LengthThelengthshallbemadebymeansofameasuringdevicehavingan accuracy of 1 mm, at the position approximately 100 mm from the both sides, the average length value shall be reported.9.2Camber tolerances9.2.1Cut edge steel plate and sheetPlace the test piece on a flat surface, maximum deviation of camber (a) shall bemadebymeansofameasuringdevicehavinganaccuracyof0.1mm with the cord length 10 000 mm, the measurement being taken as shown in Figure 1.As for cut edge steel plate and sheet less than 10 000 mm in length, the full length shall be applied.9.2.2Cut edge steel coil and steel stripThe test shall be carried out same as clause 9.2.1 with the cord length 2 000 mm.Figure 1 Measurement of maximum deviation of camber(clause 9.2.1)9.3Out-of-square of cut edge steel plate and steel sheetThedeviation(A)ofanendedgeshallbemeasuredfromastraightlineatright angle to a side and touching one corner, the measurement being taken as shown in Figure 2.Figure 2 Measurement of Out-of-square(clause 9.3)14 of 149.4Flatness for steel plate and steel sheetPlacethesampleunderitsownmassontheflatsurface,theflatnesstoleranceis the maximum deviation from fatness which shall be measured at the any positions, bymeansofameasuringdevicehavinganaccuracyof0.1mm,themaximum deviation are read accuracy to 0.1 mm.9.5BendingShall be carried out in accordance with TS 244 Part 11, the test piece shall be bent through180,andthelegsof testpieceareparalleltoeachother,thediameterof test piece as given in Table 13.Table 13 : Bending(clause 9.5)Units in mmGrade Diameter of mandrelSS 330 Thickness of test pieceSS 400 3 times of thickness of the test pieceSS 490 4 times of thickness of the test pieceSS 540 4 times of thickness of the test piece