12CrNi3 A42122 - GB /T 3077-2015

Grade	12CrNi3
China ISC	A42122
Corresponding Standard	GB /T 3077-2015 Alloy Structure Steels
Classification	Alloy Steel
Properties	Strength Weldability Carburizing Ability
Density	7.88 g/cm³

12CrNi3 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.1	0.17	0.3	-	-	0.6	2.75	-	-
Maximum Value	0.17	0.37	0.6	0.03	0.03	0.9	3.15	0.3	0.1

12CrNi3 Mechanical Properties

diameter d mmd	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	Double Quenching and Tempering	≥930	≥685	≥11	≥50	≤217	≥71

Approximate Comparison Table Structural Alloy Steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

European Standard

Russia

United Kingdom

ISC

CNS

JIS

ASTM/AISI

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

Numerical Grade

GOST

BS EN/BS

12CrNi3

A42122

SNC815

SNC815
SNC815H

SNC815

3310

G33106

15NiCr13

14NiCr14

1.5752

14NC12

15NiCr13

1.5752

12ХН3А

665A12
665M13

12CrNi3 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"!