20NiCrMo 7 1.3576 - DIN EN ISO 683-17-2015

Grade	20NiCrMo 7
Germany W-Nr.	1.3576
Corresponding Standard	DIN EN ISO 683-17-2015 Heat-Treated Steels, Alloy Steels and Free-Cutting Steels - Part 17: Ball and Roller Bearing Steels
Classification	Alloy Steel
Properties	Quench Hardness

20NiCrMo 7 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S ^①	Cr	Ni	Cu	Mo	Al	O
Minimum Value	0.17	-	0.4	-	-	0.35	1.6	-	0.2	-	-
Maximum Value	0.23	0.4	0.7	0.025	0.015	0.65	2	0.3	0.3	0.05	0.002

20NiCrMo 7 Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Steel billet, bar stock, coil bar	Cold Shearing Treatment (+S)	≤255
Bars, coiled bars	Softening Annealing (+A)	≤229
Bar stock, coil, wire, ring parts	Solution Heat Treatment (+TH)	174~229
Bars, coils, wire rods, pipes, rings	Spheroidizing Annealing (+AC)	≤170
Bar, Coil, Pipe, Ring	Isothermal Treatment to Ferrite-Perlite Structure and Hardness Range (+FP)	154~207

20NiCrMo7 Corresponding Standards(Same grade name, different standards)

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