G20Cr2Mn2Mo - GB /T 3203-2016

Grade	G20Cr2Mn2Mo
Corresponding Standard	GB /T 3203-2016 Carburizing steels for bearing
Classification	Bearing Steel
Properties	Strength Hardness Fatigue Resistance Carburizing Ability

G20Cr2Mn2Mo Chemical Element Composition Content (%)

Component	C	Si	Mn	P ^①	S ^①	Cr	Ni	Cu	Mo	Ti ^①	Al ^①	H ^①	Ca ^①
Minimum Value	0.17	0.15	1.3	-	-	1.7	-	-	0.2	-	-	-	-
Maximum Value	0.23	0.4	1.6	0.02	0.015	2	0.3	0.25	0.3	0.005	0.05	0.0002	0.001

G20Cr2Mn2Mo Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
d=15*	Double Quenching + Oil Cooling, Tempering + Air Cooling	≥1280	≥9	≥40		≥55
Delivery Condition**	WHR+SA/WHF+SA/WCD/SF or SP				≥229

G20Cr2Mn2Mo Corresponding Standards(Same grade name, different standards)

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