BS ISO 20378-2017 Welding consumables - Rods for gas welding of non-alloy and cr

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1、BSISO20378:2017BSIStandardsPublicationWeldingconsumables—Rodsforgasweldingofnon-alloyandcreep-resistingsteels—ClassificationBSISO20378:2017BRITISHSTANDARDNationalforewordThisBritishStandardistheUKimplementationofISO20378:2017.TheUKparticipationinitspreparationwasentrustedtoTechnical

2、CommitteeWEE/39,Weldingconsumables.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorectapplication.©TheBritishStandardsInstitution2017.Publishedby

3、BSIStandardsLimited2017ISBN9780580900853ICS25.160.20CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.ThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon31March2017.Amendments/corigendaissuedsincepublicationDateTextaffected

4、BSISO20378:2017INTERNATIONALISOSTANDARD20378Firstedition2017-02Weldingconsumables—Rodsforgasweldingofnon-alloyandcreep-resistingsteels—ClassificationProduitsconsommablespourlesoudage—Baguetespourlesoudageauxgazdesaciersnonalliésetdesaciersrésistantaulufage—ClassificationReferencenum

5、berISO20378:2017(E)©ISO2017BSISO20378:2017ISO20378:2017(E)COPYRIGHTPROTECTEDDOCUMENT©ISO2017,PublishedinSwitzerlandAllrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformorbyanymeans,electronicormechanical,includingphotocopying,o

6、rpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbeloworISO’smemberbodyinthecountryoftherequester.ISOcopyrightofficeCh.deBlandonnet8•CP401CH-1214Vernier,Geneva,SwitzerlandTel.+41227490111Fax+41227490947copyright@iso.org

7、www.iso.orgii©ISO2017–AllrightsreservedBSISO20378:2017ISO20378:2017(E)ContentsPageForeword.....iv1Scope.....12Normativereferences....13Termsanddefinitions....14Classification....15Symbolsandrequirements....15.1Symbolfortheproduct/process...15.2Symbolforthechemicalcompositionofrods..

8、.16Chemicalanalysis