ISO 04998-2023.docx

INTERNATIONA1.STANDARDISO4998editionSeventh2023-02Stee1.sheet,zinc-coatedandzinc-irona1.1.oy-coatedbythecontinuoushot-dipprocess,ofstructura1.qua1.ityT1.esenacieraucarbonereva1.uesdezincetd'una1.1.iagezinc-ferenContinuparimmersionachaud,dequa1.itydestineaIaconstructionISORayyf1.里0m但qCOPYRIGHTPROTECTEDDOCUMENT©ISO2023IUirhM*hedbdi1.iUedotherwiseupdhi.o啪InyM1.tta0Dmk<nroni(ncm11ni10tf1.*Mqn1.C6pW11opypMRationmaytheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbe1.oworISO'smemberbodyinthecountr)oftherequester.f),WV>fifiU81.andonnet8CH-1214Vernier,GenevaPhone：M1.22749O1.11觥ftte:丽丽BQrgPub1.ishedinSwitzer1.andContentsForewordV5.3Chcmica1.Hea1.ana1.ysis5.5Coating45.8Painting8.3Coatingfinish8101112iiiScope1Normativereferences1Termsanddefinitions：Dimensions2Conditionsofmanufacture5.1 Stee1.making35.2 Cposition5.3.15.3.2 PrOdUCt3a1.ysis-35.4Mechanica1.properties41.1.1 Coatingmass1.1.2 Coatingadherence55.6 We1.dabi1.ity.65.7 Surfacetreatment5.8.1 Mi1.1.PaSS1.yatIon.65.8.2 Mi1.1.phosphating6Samp1.ing761composition.6.2Tensi1.etest76.3.1 testsmass6.3.2 Trip1.e-spottest7633SInIetestSI1.t1Coatingproperties8DeS1.gnatIonSySteiD88.1 Genera1.88.2 Coatingtype8.4 masscondition8.5 Surfacetreatment9.6Examp1.e9Machiningandf1.aws10E1.ongationResubmission1()Workmanship10Inspectionandacceptance101314 Co1.1.size1015 Marking11Informationsupp1.iedbythepurchaser11AnnexA(normative)Ordersrequiringbase-meta1.thickness13Bib1.iography14ForewordISO(theInternationa1.OrganizationforStandardization)isawor1.dwidefederationofnationa1.standardsBuchugh(ISOtnrhniroibirH)tR¼,kWpaphngbody1.ntnoi6tat(bW(no!hntart>edj<mitteehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,governmenta1.andnongovernmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththee1.ectrotechnica1.standardization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenanceareAnytradeusedinthisR曲拈OnHggd限fe榴n捣嫂期叫脚&ns1.雅翩瞰R时做别翎他docf1.瓶棉搬出银Ahsubjectofanypatentrightsidentifiedduringthedeve1.opmentcfxhoUxumumtwi1.1.beintheIntroductionand/orontheISO1.istofpatentdec1.arationsreceived(secwww.iso.org/patents).constitutenameendorsement,domentisinformationgivenfortheconvenienceofusersanddoesnotForanexp1.anationofthevo1.untarynatureofstandards,themeaningofISOspecifictermsand忠G四U隅现dwn弱脚即O1.assE鹿ftinwe憎s1KnBar池恻Jsdead赧eswww.iso.org/iso/foreword.htm1.曲豺如逑"C呼reparedbyTechnica1.CommitteeISO/TC17rStee1.,SubcommitteeSC12,ContinuousThisseventheditioncance1.sandrep1.acesthesixthedition(ISO4998:2014),whichhasbeentechnica1.1.yrevised.Themainchangesareasfo1.1.ows:updateoftermsanddefinitions;additionofcoatingmassdesignations.挑曲的帆“也fiI三iiesthiscah8<1.三由M三k型函钞2蛔nationa1.standardsbody.AStee1.sheet,zinc-coatedandzinc-irona1.1.oy-coatedbythecontinuoushot-dipprocess,ofstructura1.qua1.ity1ScopeThisdocumentspecifiestherequirementsforstee1.sheet,zinc-coatedandzinc-irona1.1.oy-coatedbythecontinuoushot-dipprocess,OfStrUCtUraIqua1.ity.Theproductisintendedforapp1.icationswhereresistancetocorrosionisofprimeimportance.Thestee1.treatmentsheetisproducedinanumberofgrades,coatingmasses,orderingconditions,andsurfaceThisdocumentdoesnotcoverstee1.sheetdesignatedascommercia1.qua1.ity,ordrawingqua1.ity,whichAeNnFHis踞海泥hces3Ks四Mf1.丽的自殃hisrQ6tru.用琳网nrcf(三也设砌/蜘上di(M版绑p3cmtundatedreferences,the1.atesteditionofthereferenceddocument(inc1.udinganyamendments)app1.ies.7f4g吧怀用怨B朗"麻IarCQdipga1.vanizedcoatingsonferrousmateria1.sGravimetric【8劭(1寸&NonmagneticcoatingsonmagneticsubstratesMeasurementofcoa1.ingthicknessMagneticISO3497,Meta1.1.iccoatingsMeasurementofcoatingthicknessX-raySpearometricmethodsISO6892-1.rMeta1.1.icmateria1.sTensi1.etestingPart1:MethodoftestatroomtemperatureISO7438,Meta1.1.icmateria1.sBendtestftTV4tWf也供COaWdStee/sheetproductsDimensiona1.andshapeto1.erancesForthepurposesofthisdocument,thefo1.1.owingtermsanddefinitionsapp1.y.ISOandIECmaintaintermino1.ogydatabasesforuseinstandardizationatthefo1.1.owingaddresses:ISOOn1.inebrowsingp1.atform:avai1.ab1.eWWWjSo.Gebpy1ECE1.ectropedia:avai1.ab1.eathttps:/www.e1.ectropedia.org/zinc-coatedstee1.sheetproductobtainedbyhot-dipcoatingofco1.d-reducedsheetcoi1.sorhot-ro1.1.eddesca1.edsheetcoi1.sonacontinuouszinc-coating1.ine3.2zinc-irona1.1.oy-coatedstee1.sheetproductobtainedbyprocessingthezinc-coatedstee1.sheetsothatthecoatingformedonthebase-meta1.iscomposedofzinc-irona1.1.oysh348dons,ejmRhttn加8rdHcdtft独jiin呼d,furttimtUIhndU也如配irona1.1.oycoatingscanpowderduringsevereforming.33norma1.coatingcoatingformedasaresu1.tofunrestrictedgrowthofzinccrysta1.sduringnorma1.so1.idificationNfotca1.icatt<Ey1.ti,hibcco11*axias11fe(Rbnma1.kuariJignUiththcskintypcpass)notf¢ihrf11hishcfiotiQtiBia(id)ra11ctyhowever,itcanbevariab1.einappearanceandIsnotsuitab1.efordecorativepainting,1.4minimizedspang1.efinishobtainedbyrestrictingnorma1.spang1.eformationduringtheso1.idificationofthezincNote1toentry:Thisproductcanhavesome1.ackofuniformityinsurfaceappearancewithinacoi1.,orfromcoi1.coi1.1.5differentia1.coatingdgtingde1.iberate1.yproducedtohaveadifferentcoatingmassoneachsurfaceskinpass1.ightco1.d-ro1.1.ingoftheproductNnft1.hm4rytTbdwcrpurpoi4hBdBmtn>pptsx1.is<nwheDto<ubthbrftteWiiitKiuirodSiimttethBrippearanceof野C2toentry：Someincreaseinhardnessandsome1.ossinducti1.itywi1.1.resu1.tfromskinpassing.1.otuptoaspecifiedquantityofstee1.sheetofthesamedesignationro1.1.edtothesamethicknessandcoatingogditioncoatingmasstota1.amountofcoatingonbothsidesofthesheet,expressedingramspersquaremetre(g/m2)ofsheet4 Dimensions4.1Zinc-coatedandzinc-irona1.1.oy-coatedstructura1.qua1.itystee1.sheetisproducedinthicknessesfrom0,25mmto5mminc1.usiveaftercoating,andinwidthsof600mmandoverincoi1.sandcut1.engths.Zinc-coatedandzinc-irona1.1.oy-coatedstee1.sheet1.essthan600mrnwide,s1.itfromwidesheetisconsideredassheet.NOTEThicknesses1.essthan0,4mmwi1.1.possib1.ynotbeavai1.ab1.eingrades220,250,280.and320.4.2Thethicknessofzinc-coatedandzinc-irona1.1.oy-coatedstee1.sheetmaybespecifiedasacombinationofthehase-meta1.andmeta1.1.iccoating,orasthebase-meta1.a1.one.Thepurchasersha1.1.indicateontheorderwhichmethodofspecifyingthicknessisrequired.Intheeventthatthepurchaser100Tidet1.HdinattnydcsBiteMnhiERet1.iiwcTOeatKbrepectfymbirtHtEhthicknessbasehHietaJbMkeaiciMdi1.he.be5 Conditionsofmanufacture5.1 Stee1.makingUn1.essotherwiseagreedbytheinterestedparties,theprocessesusedinmakingthestee1.andindamt(m(tf11itiatUn11riAbro9uitoUjo4tudta-iha1.1.sheteeinfogwedtfa1.thp1.Mik1.prbessbeingused.5.2 CpositionTposition(heatana1.ysis)sha1.1.conformtotherequirementsgiveninTab1.es1and2.5.3 Chemica1.ana1.ysis5.3.1 Heatana1.ysisAnana1.ysisofeachhea«W)-bema<tebythemanufacturerinordertodetermineconformitywiththeto(,hirp11rabwgnx)nti?abjsrt1.WH<)neprseB<ative.pdtofofthetoaxid1.fei1.ddu11ittU1.esha1.1.beinc1.udedinthereportoftheheatana1.ysis.Whentheamountofcopper,nicke1.,chromiumormo1.ybdenumpresentis1.essthan0,02%,theana1.ysismaybereportedas*<0,02%”.5.3.2 Productana1.ysisAproductana1.ysismaybemadebythepurchaserinordertoverifythespecifiedana1.ysisoftheproductaccorUaHcctakeWit1.inhkcuasidcrAionanynorma1.heterogeneity.Theproductana1.ysisto1.erancessha1.1.beinTab1.e1-Cposition(heatana1.ysis)E1.ementCuNiCrMaSSnPercetttNbVC025Gr1.c5250and280:P-0,10%max.：Gr;Ide350:P-0.20%max.E1.ementE1.ementMaximumofspecifiede1.ementMassactoninacrccn11abQbCCCmax.max.max.max.max.maxmax.UyfJftqI陆fKJiWff1.5iM2ft1.jfiteHS1.fi1.N用搭快Oihtf<*但MueIhMUIAh1IMeietitc.rpifNfh5<ri11(sirC1.Mrrciirein仅S1.hX更加n喇,tdkM%KgrdyBXt加hi0MJ6*<1.ht/以晒/乂1IkmJhi咿EgMEr恒EE加H询gpeaterth11三ag曲吼W阳屈删雌闾而叫affiproducerandpurchaser.3DISO2023-A1.1.rightsreseredTab1.e3Productana1.ysisto1.erancesforTab1.e1MassfractioninpercentNOTETheahovemaximumto1.mnceisthea1.1.owab1.eexcessovertherequirementofheatA11a1.yxi5showninTah1.e1.5.4Mechanica1.propertiesofthemechanica1.propertiesSha1.1.Tab1.emade-IoMechanica1.propertiesrequired,manufactrercoatingbenotifie<idifferentia1.1.yordering.product.IfamaximumcoatingmassGradeRe1.min.bRmmax.1.1.Structura1.qua1.itygrdessha1.1.satisfytherne:hanica1.propertiesShC»wninTab1.e4.Onreqest.areportR4thepurchaser.H111:tensi1.estrength(forinformationon1.y)1.percentagee1.ongationafterfracturejmin.E1.ementMaximumofspecifiede1.ementTo1.eranceovermaximumspecifiedUseeithero=S0oro三mmtoby2.Thecoatingmass1.imitssha1.1.conformtothe1.imitsforthedesignationsshowninTab1.e5.Theinterestedpar1.iesSha1.1.1.hcagrecuponthesha1.1.massthetimeOfCOat(X1.Tab1.e5Coatingmass(tota1.bothsides)CoatingmassdesignationMinimumcheck1.imitTrip1.e-spottestSing1.e-spottestZF：zinc-irona1.1.oyb*Nominimum"meansthattherearcnoestab1.ishedminimumcheck1.imitsfortrip1.e-spotandsing1.e-spottests.5.5.2CoatingadherenceThezinc-coated（三）stee1.sheetsha1.1.ofbeingbentinanydirection,inaccordancewiththeR1.ahr1.nMhm011¾mgnt5>ftbiMfvtfHwifhctikfiyiebaBoatin¾d11nuse<iotxitt-g!irtfffe(md.bendtestrequirementsofTab1.e6donotapp1.ytozinc-irona1.1.oy-coated(ZF)stee1.sheet.Tab1.e6CoatingadherenceBendtestmandre1.diameterGrade180obend-mandre1.diameterCoatinma联EeSignatiOneeaaaaaaaaaaaaQaaaQQaaaaQQaaaaaaaaaaQaQethicknessofsheet,inmi1.1.imetre?;5.6 VVe1.dabiIityThisproductisnorma1.1.ysuitab1.eforwe1.dingwhenappropriatewe1.dingmethodsandproceduresare9dwrtUH)ffbjmept11(11(UP5thgui(fftOT1.tBooiintkVhenheatoftt>iriinnit11creaseai>gw<fftSc'ffecton1.oweringthestrengthofgrade550.thisgradeisnotrecommendedforwe1.ding.5.7 PaintingZinc-coated,andespecia1.1.yzinc-irona1.1.oy-coatedstee1.sheet,isasuitab1.ebaseforpaint,butthefirsttwUrirt1111toni(fcrateJronnh(>6cMedweoaf>hitn<dd5)Jectreat11entp11WpspnewUyhemica1.formu1.atedfordirectapp1.ication1.ozincandzinc-ironsurfaces,area1.1.appropriatefirsttreatmentsforzinc-coatedandzinc-irona1.1.oy-coatedstee1.sheetIndrawingupapaintingschedu1.e,considerationgivenzinc-coatedandzinc-irona1.1.oy-coatedstee1.sheetsha1.1.beorderedinthepassiratednotpassivated5rEationStffacesprevmfeDwntn(eipriuentreatments(e.g.chromated)arenotsuitab1.eforphosphatingorthe5.8 Surfacetreatment5.8.1 Mi1.1.passivationAchemica1.treatmentisnorma1.1.yapp1.iedtozinccoatingstominimizethehazardofwet-storageEtmmgntwite1.h!tdrHringshipmentisrecetufedteoagi4()iia?umt<theinhdUbogi6hdnaiomriititeix>(bftheThistreatmentisnotusua1.1.yapp1.iedtozinc-irona1.1.oycoatingsbecauseitinterfereswiththeadhesionofmostpaints.Ifspecifiedbythepurchaser,zinc-irona1.1.oycoatingssha1.1.haveachemica1.treatmentapp1.ied.NOTEChromatcfrcctreatmentisavai1.ab1.eforuse.5.8.2 Mi1.1.phosphatingWhenspecified,themanufacturersha1.1.app1.yphosphatetreatmentstozinc-coatedorzinc-irona1.1.oy-coa1.edstee1.sheettopreparethesurfaceforpaintingwithoutfurtherIrcatmen1.exceptnorma1.c1.eaning.8.3.2coatingmassSpecifiedexpressedcompatib1.emassthedesiredsurfa<es,ingramsthicknessofmetre.basemeta1.,andWiththeformingrequirementsinvo1.ved.N<Hrsted*tones,dif侑Whimcoath花s,<df&o凶nftssrtEeadhbMorwurfa<vUMnCdIAnictofanphgmdhwhfIbfeheia1.coatingdesignationisZ120S60C02.8.4 CoatingfinishconditionThecoatingfinishconditionsare: N:norma1.coating,noskinpass； S:norma1.coating,withskinpass; M:minimizedspang1.e,noskinpass; E:minimizedspang1.e,withskinpass.38(jHM咻源nesse如9tWttff1.sh<¾HH1Y8RIWffi崂1电furnishedindesignationsZ350,Z275,Z200.and8.5 SurfacetreatmentThesurfacetreatmentdesignationsare： C:mi1.1.passivation; P:mi1.1.phosphating; O:oi1.ing; CO:mi1.1.passivationandoi1.ing.8.6 Examp1.enexamp1.eofacomp1.etedesignationisZ275MC250,Thisdesignationexamp1.einc1.udesthefo1.1.owingcomponents: Z:zinccoating; 275:coatingmass; M:minimizedspang1.e,noskinpass； C:mi1.1.passivation; 250:stee1.grade.9Retests9.1 Machiningandf1.awsIfanytensi1.etestpieceshowsdefectivemachiningordeve1.opsf1.aws,itsha1.1.bediscarded,andanothertestpiecesha1.1.besubstituted.maximumminimumorrangeandacceptab1.emaximumdiameter(三)coi1.(ID)massSha1.1.specified.Inaddition.10©ISO2023-A1.1.rightsreservedOnanytensi1.etest,ifanypartofthefractureisoutsidethemidd1.eha1.fofthegauge1.engthasscribed9.3 thetest,theIfanyatdoesnotgivesame1.ot.twoconformtothesha1.1.beofthissamp1.esother¼risethe1.otsha1.1.berejected.10.1 Themanufacturermayresubmit,foracceptance,theproductsthathavebeenrejectedduringtosuitab1.ebecauseofse1.ection,heatproperties,theonwi1.1.bebeentothepurchaser.Inthiscase,testssha1.1.becarriedoutasiftheyapp1.iedtoanew1.ottheTherequirementsformayqua1.ity.10.2 Thesurfaceconditionsha1.1.bethatnorma1.1.yobtainedforazinc-coatedandzinc-irona1.1.oy-coatcd10.3 Thestee1.sheetincut1.engthssha1.1.befreefromquantitiesOf1.aminationsrsurfacef1.awsandother10.4 Processingforshipmentincoi1.sdoesnotaffordthemanufacturertheopportunitytoobserveitistheremovethemanufacturerascanacarriedoutonthecut1.engthproduct,surfaceconditionthatisnorma1.1.yobtainedonzinc-coatedandzinc-irona1.1.oy-coatedstee1.sheetproducts.12.1 A1.thoughnotusua1.1.yrequiredforproductscoveredbythisdocument,whenthepurchaserspecifiesthatworks,theandtestsforsha1.1.atYordthebeobservedtoshipmentfromthetodeterminethatthestee1.isbeingfurnishedinaccordancewiththisdocument.12.2 Stee1.thatisreportedtobeandadequate1.yafterThetheuser,ssha1.1.sha1.1.beinorderthatthereportednon-conformingmateria1.maybeproper1.yinvestigated.Whenzinc-coatedstee1.sheetorzinc-irona1.1.oy-coatedstee1.sheetinaccordancewiththisdomentistheorderedincoi1.s,aoutsidediameter(OD)oftheinsideacceptab1.esha1.1.bebe14MarkingUn1.essotherwisestated,thefo1.1.owingminimumrequirementsforidentifyingthestee1.sheetsha1.1.beIegibIystenci1.edonthetopofeach1.iftorshownonatagattachedtoeachcoi1.orshippingunit:a) themanufacturer'snameoridentifyingbrand;b) areferencetothisdocumen