20NiCrMo2 - ISO 683-18-1996

Grade	20NiCrMo2
Corresponding Standard	ISO 683-18-1996 Heat-treatable steels, alloy steels and free-cutting steels - Part 18: Bright Products of Unalloyed and Low Alloy Steels
Classification	Alloy Steel
Properties	Carburizing Ability

20NiCrMo2 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo
Minimum Value	0.17	0.15	0.65	-	-	0.3	0.4	0.15
Maximum Value	0.23	0.4	0.95	0.035	0.035	0.65	0.7	0.25

1 Approximate Comparison Table Structural Alloy Steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

Russia

Sweden

United Kingdom

ISC

CNS

JIS

ASTM/AISI

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

GOST

SS₁₄

BS EN/BS

20CrNiMo

A50202

SNCM220

8620

G86200

20NiCrMo2

21NiCrMo2

1.6523

20NCD2

20ХНМ

2506

805M20

2 Approximate Comparison Table Case-Carburized Bearing Steel

China		Taiwan, China	South Korea	United States	International Organization for Standardization	Germany		France	Sweden	United Kingdom
GB	ISC	CNS	KS	ASTM/AISI	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	SKF	BS EN/BS
G20CrNiMo	B12200	SNCM220	SNCM220	A534 8620H	20NiCrMo2 (B28)	21NiCrMo2	1.6523	21NiCrMo2 (20NCD2)	SKF152	805 A20

3 Approximate Comparison Table Structural Alloy Steel

China	Japan	International Organization for Standardization	Germany	France	European Standard		Russia	United Kingdom
GB	JIS	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	BS EN/BS
20CrNiMoH	SNCM220 SNCM220H	20NiCrMo2-2 20NiCrMo2	21NiCrMo2	20NCD2	20NiCrMo2-2	1.6523	20KHGNM	805M20

20NiCrMo2 Corresponding Standards(Same grade name, different standards)

1	ISO 683-18-1996
	20NiCrMo2
2	ISO 683-11-1987
	20NiCrMo2 20NiCrMo2H 12 20NiCrMo2HH 20NiCrMo2HL
3	NF A 35-565-1994
	20NiCrMo2 (20NCD2)
4	ASTM A534-2014
	20NiCrMo2 B28
5	UNI 8550-1984
	20NiCrMo2

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