12CrMo A30122 - GB /T 3077-2015

Grade	12CrMo
China ISC	A30122
Corresponding Standard	GB /T 3077-2015 Alloy Structure Steels
Classification	Alloy Steel
Properties	Strength High-Temperature Strength
Density	7.85 g/cm³

12CrMo Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.08	0.17	0.4	-	-	0.4	-	-	0.4
Maximum Value	0.15	0.37	0.7	0.03	0.03	0.7	0.3	0.3	0.55

12CrMo 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=30	Quenching + Tempering	≥410	≥265	≥24	≥60	≤179	≥110

1 Approximate Comparison Table Structural Alloy Steel

2 Approximate Comparison Table Structural Alloy Steel

China	Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
12CrMo	SFVAF12	A387Gr.12 Gr.P12	F32 P32	13CrMo4-4	15CD2.05 15CD4-05 15CD4-5	13CrMo4-5	1.7335	12KHM 15KHM	2216	620 620-440 620Gr.27

3 Approximate Comparison Table Structural Alloy Steel

China	Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
12CrMo	SCMV4	A387Gr.22 Gr.P22	F34 P34 TS34	10CrMo9-10	10CD9-10 12CD9-10	10CrMo9-10	1.7380	10KH2M	2218	622 622Gr.31

4 Approximate Comparison Table Structural Alloy Steel

12CrMo Corresponding Standards(Same grade name, different standards)

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