IntroductiontoGJB1663A-2018Specificationfor10CrNi3MoV,10CrNi3MoCu,and10CrNi2MoCuSteelPlatesforNavalShipsGJB1663A-2018isaChinesemilitarystandardthatspecifiesthetechnicalrequirementsforhigh-strengthsteelplatesusedinnavalshipconstruction.Thestandardcoversthreetypesofsteel:10CrNi3MoV,10CrNi3MoCu,and10CrNi2MoCu.Thesesteelsaredesignedtoprovideexcellentmechanicalproperties,includinghighstrength,toughness,andcorrosionresistance,makingthemsuitableforcriticalstructuralapplicationsinnavalvessels.Thestandarddefinesthechemicalcomposition,mechanicalproperties,heattreatmentprocesses,inspectionmethods,andacceptancecriteriaforthesesteelplates.Itensuresthematerialsmeetstringentperformanceandqualityrequirementstowithstandharshmarineenvironmentsandoperationaldemands.GJB1663A-2018servesasakeyreferenceformanufacturers,shipbuilders,andqualitycontrolpersonnelinvolvedintheproductionandapplicationofthesespecializedsteelplatesfornavaldefensepurposes.Compliancewiththisstandardguaranteesthereliabilityanddurabilityofsteelcomponentsusedinnavalshipbuilding.