ASTM_A370-2020

This international standard was developed inPrineiples for theDevelopment of Internatithe World Trade OrgaCommittee.Designation:A370 MTV THEP MIENight ASTMnteion,10 Barr Harb Drive,Tai lieu kieConshohocken,Pennsyvania 19428-2959niedStatesof America.This coy has been madeStandard Test Methods and Definitionstfortandards and Quality (STAMEQ)under licenseMechanical Testing of Steelroducts onalThis standard is issued under the fixed designation A370.the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*Procedure for Use and Control of Heat-cycle SimulationAnnex A101.1 These test methods2 cover procedures and definitions1.4 The values stated in inch-pound units are to be regardedfor the mechanical testing of steels,stainless steels,and relatedas standard.The values given in parentheses are mathematicalalloys.The various mechanical tests herein described are usedconversions to SI units that are provided for information onlyto determine properties required in the product specifications.and are not considered standardy曲Variations in testing methods are to be avoided,and standard1.5 When these test methods are referenced in a metricmethods of testing are to be followed to obtain reproducibleproduct specification,the yield and tensile values may befromand comparable results.In those cases in which the testingdetermined in inch-pound (ksi)units then converted into SIrequirements for certain products are unique or at variance with(MPa)units.The elongation determined in inch-pound gaugethese general procedures,the product specification testinglengths of 2 or 8 in.may be reported in SI unit gauge lengthsrequirements shall control.of 50 or 200 mm,respectively,as applicable.Conversely,when1.2 The following mechanical tests are described:these test methods are referenced in an inch-pound productSectionsspecification,the yield and tensile values may be determined inTension71o14SI units then converted into inch-pound units.The elongationBend15Hardness16determined in SI unit gauge lengths of 50 or 200 mm may beBrinell1reported in inch-pound gauge lengths of 2 or 8 in.,respectively,RockwellPortable19as applicable.Impact201o301.5.1 The specimen used to determine the original unitsKeywords32must conform to the applicable tolerances of the original unit1.3 Annexes covering details peculiar to certain productssystem given in the dimension table not that of the convertedare appended to these test methods as follows:tolerance dimensions.AnnexNorg 1-This is due to the specimen SI dimensions and tolerancesBar ProductsAnnex A1being hard conversions when this is not a dual standard.The user isTubular ProductsAnnex A2directed to Test Methods A1058 if the