ISO 18276-2017 Welding consumables - Tubular cored electrodes for gas-shielded a

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1、INTERNATIONALISOSTANDARD18276Secondedition2017-03Weldingconsumables—Tubularcoredelectrodesforgas-shieldedandnon-gas-shieldedmetalarcweldingofhighstrengthsteels—ClassificationProduitsconsommablespourlesoudage—Fils-électrodesofuréspourlesoudageàl’arcavecousansgazdeprotectiondesaciersà

2、hauterésistance—ClassificationReferencenumberISO18276:2017(E)©ISO2017ISO18276:2017(E)COPYRIGHTPROTECTEDDOCUMENT©ISO2017,PublishedinSwitzerlandAllrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformorbyanymeans,electronicormechani

3、cal,includingphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbeloworISO’smemberbodyinthecountryoftherequester.ISOcopyrightofficeCh.deBlandonnet8•CP401CH-1214Vernie,rGeneva,SwitzerlandTel.+41227490111Fax+4

4、1227490947copyright@iso.orgwww.iso.orgi©ISO2017–AllrightsreservedISO18276:2017(E)ContentsPageForeword.....ivIntroduction.....v1Scope.....12Normativereferences....13Termsanddefinitions....24Classification....25Symbolsandrequirements....35.1Symbolfortheproduct/process...35.2Symbolfort

5、ensilepropertiesofal-weldmetal...45.3Symbolforimpactpropertiesofal-weldmetal....45.4Symbolforchemicalcompositionofal-weldmetal..55.5Symbolfortypeofelectrodecoreortheusabilitycharacteristicsoftheelectrodes.85.6Symbolforshieldinggas....95.7Symbolforweldingposition...95.8Symbolforhydro

6、gencontentofdepositedmetal..95.9Symbolforconditionsofpost-weldheattreatment..106Roundingprocedure....107Mechanicaltests....107.1Preheatingandinterpasstemperatures...107.2Passsequence....117.3Post-weldheattreatment(PWHT)condition...128Chemicalanalysis....129Retesting.....1210Technica

7、ldeliveryconditions....1211Examplesofdesignations....12AnnexA(informative)Classificationsystems...15AnnexB(informative)Descriptionofcompositiondesignationsforelectrodesintheclassificationsystembasedupontensilestrengthandaverageimpactenergyof27J..18AnnexC(informative)Descriptionoftyp

8、esofelectrodecorein