12Cr2Ni4A - GJB 1951-1994

Grade	12Cr2Ni4A
Corresponding Standard	GJB 1951-1994 Specification for Quality Structure Steel Bars for Avication
Classification	Alloy Steel

12Cr2Ni4A Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu ^*	Mo ^*	Ti ^*	W ^*	V ^*
Minimum Value	0.1	0.17	0.3	-	-	1.25	3.25	-	-	-	-	-
Maximum Value	0.15	0.37	0.6	0.03	0.03	1.75	3.75	0.25	0.15	0.03	0.2	0.05

12Cr2Ni4A Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
Steel Rod	Tempering or annealing					163~255
Longitudinal specimen d=16①	Quenching 780~810°C oil cooling, Tempering 150~170°C air cooling	≥1030	≥785	≥12	≥55	293~388	≥78
Longitudinal sample d=16②	Quenching 760~800°C oil cooling, Tempering 150~170°C air cooling	≥980	≥785	≥12	≥45	293~388	≥71

12Cr2Ni4A Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!