EN10083-3isaEuropeanstandardthatspecifiesthetechnicaldeliveryconditionsforalloysteelsinthequenchedandtemperedcondition.Itcoverssteelgradeswithspecifiedhardenabilityrequirements(H-steels)andispartoftheEN10083series,whichdealswithsteelsforquenchingandtempering.Thestandardincludesrequirementsforchemicalcomposition,mechanicalproperties,andhardenability.Itiscommonlyusedforcomponentsthatrequirehighstrengthandtoughness,suchasgears,shafts,andotherheavilystressedpartsintheautomotiveandmachineryindustries.Thestandardensuresconsistentmaterialpropertiesandperformanceforengineeringapplications.
