20NiCrMoS6-4 1.6571 - EN 10084-2008

Grade	20NiCrMoS6-4
European Standard Steel Grade	1.6571
Corresponding Standard	EN 10084-2008 Case Hardening Steels - Technical Delivery Conditions
Classification	Alloy Steel

20NiCrMoS6-4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo
Minimum Value	0.16	-	0.5	-	0.02	0.6	1.4	0.25
Maximum Value	0.23	0.4	0.9	0.025	0.04	0.9	1.7	0.35

20NiCrMoS6-4 Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Semifinished products, bars	Processed to a Certain Shearability (+S)	≤255
All product shapes	Soft Annealing (+A)	≤229
Bar, wire, flat steel, forging	Processed to a Certain Hardness (+TH)	179~229
Bar, forging	Processed to Ferrite-Perlite Structure (+FP)	154~207

20NiCrMoS6-4 Corresponding Standards(Same grade name, different standards)

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