38CrA - GJB 1951-1994 - H2ABC

中文版

Grade	38CrA
Corresponding Standard	GJB 1951-1994 Specification for Quality Structure Steel Bars for Avication
Classification	Alloy Steel
Density	7.8 g/cm³

38CrA Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu ^*	Mo ^*	Ti ^*	W ^*	V ^*
Minimum Value	0.34	0.17	0.5	-	-	0.8	-	-	-	-	-	-
Maximum Value	0.42	0.37	0.8	0.025	0.025	1.1	0.4	0.25	0.15	0.03	0.2	0.05

38CrA Mechanical Properties

condition	Mark	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=25①		Quenching + Tempering	≥885	≥785	≥12	≥50	269~321	≥78
Longitudinal specimen d=25①		Quenching + Tempering	≥930	≥785	≥12	≥50	285~341	≥71
Longitudinal sample d=25②	Pre-normalizing allowed	Quenching + Tempering	≥885	≥785	≥10	≥40	269~321	≥71

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

1	GB /T 3079-1993
	38CrA A20383
2	GJB 1220A-2008
	38CrA
3	GJB 1951-1994
	38CrA
4	GJB 2151-1994
	38CrA
5	HB /Z 136-2000
	38CrA

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