GCr4Mo4V B24040 - GB /T 38886-2020

Grade	GCr4Mo4V
China ISC	B24040
Corresponding Standard	GB /T 38886-2020 High temperature bearing steel
Classification	Bearing Steel
Properties	Hardness Fatigue Resistance

GCr4Mo4V Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	W	V	Co
Minimum Value	0.75	-	-	-	-	3.75	-	-	4	-	0.9	-
Maximum Value	0.85	0.35	0.35	0.025	0.015	4.25	0.25	0.2	4.5	0.25	1.1	0.25

GCr4Mo4V Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Hardness HBW
Bars, wire rods	Annealing	-	197~241
Bars, wire rods; d ≤ 10	Annealing	650~850	-
Bar, Wire (For Rolling Bodies)*	Quenching and Tempering	-	HRC ≥61

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