38CrMoAlA - GJB 1951-1994

Grade	38CrMoAlA
Corresponding Standard	GJB 1951-1994 Specification for Quality Structure Steel Bars for Avication
Classification	Alloy Steel
Properties	Strength Hardness Fatigue Resistance

38CrMoAlA Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu ^*	Mo	Ti ^*	W ^*	V ^*	Al
Minimum Value	0.35	0.17	0.3	-	-	1.35	-	-	0.15	-	-	-	0.7
Maximum Value	0.42	0.37	0.6	0.025	0.025	1.65	0.4	0.25	0.25	0.03	0.2	0.05	1.1

38CrMoAlA 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	Annealing or Tempering					156~229
Longitudinal specimen d=30①	Quenching + Tempering	≥930	≥785	≥15	≥50	285~321	≥78
Longitudinal specimen d=30①	Quenching + Tempering	≥980	≥835	≥15	≥50		≥71

38CrMoAlA Corresponding Standards(Same grade name, different standards)

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