20CrNiMo A50202 - GB /T 3077-2015

Grade	20CrNiMo
China ISC	A50202
Corresponding Standard	GB /T 3077-2015 Alloy structure steels
Classification	Alloy Steel
Properties	Strength Carburizing Ability

20CrNiMo Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.17	0.17	0.6	-	-	0.4	0.35	-	0.2
Maximum Value	0.23	0.37	0.95	0.03	0.03	0.7	0.75	0.3	0.3

20CrNiMo Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
d=15	Quenching + Tempering	≥980	≥785	≥9	≥40	≤197	≥47

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 structural alloy steel

3 Approximate Comparison Table structural alloy steel

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

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