20MnCrMo 4-2 - ISO 683-17-2014

Grade	20MnCrMo 4-2
Corresponding Standard	ISO 683-17-2014 Heat-Treated Steels, Alloy Steels and Free-Cutting Steels - Part 17: Ball and Roller Bearing Steels
Classification	Bearing Steel

20MnCrMo 4-2 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu	Mo	Al	O ^①
Minimum Value	0.17	-	0.65	-	-	0.4	-	0.1	-	-
Maximum Value	0.23	0.4	1.1	0.025	0.015	0.75	0.3	0.2	0.05	0.002

Approximate Comparison Table Case-Carburized Bearing Steel

China		United States	International Organization for Standardization	Germany		European Standard
GB	ISC	ASTM/AISI	ISO	DIN EN/DIN	W-Nr.	EN	Numerical Grade
G20CrMo	B10200	A534 4118H	≈20MnCrMo4-2 (B27) 20MoCr4	20MoCr4	1.7321	20MoCr4	1.7321

20MnCrMo4-2 Corresponding Standards(Same grade name, different standards)

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