20NiCrMoS6-4 1.6571 - DIN EN 10084-2008

Grade	20NiCrMoS6-4
Germany W-Nr.	1.6571
Corresponding Standard	DIN 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

Approximate Comparison Table Hardenability Guaranteed Structural Steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

Russia

United Kingdom

ISC

CNS

JIS

ASTM

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

GOST

BS EN/BS

20CrNi2MoH

A50215

SNCM420H

4320H

H43200

18CrNiCrMo7H

20NiCrMoS6-4

1.6571

20NiCrMo6-4

20ХН2М

(802H17)

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

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!