30CrMo A30302 - GB /T 3077-2015

Grade	30CrMo
China ISC	A30302
Corresponding Standard	GB /T 3077-2015 Alloy structure steels
Classification	Alloy Steel
Properties	Strength High-Temperature Strength Impact Toughness Weldability Quench Hardness
Density	7.82 g/cm³

30CrMo Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
标准	Minimum Value	0.26	0.17	0.4	-	-	0.8	-	-	0.15
标准	Maximum Value	0.33	0.37	0.7	0.03	0.03	1.1	0.3	0.3	0.25

	Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	Al
本钢特钢	Minimum Value	0.28	0.17	0.5	-	-	0.9	-	-	0.15	0.02
本钢特钢	Maximum Value	0.32	0.37	0.7	0.015	0.01	1.1	0.1	0.1	0.25	0.05

30CrMo 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=25	Quenching + Tempering	≥930	≥785	≥12	≥50	≤229	≥63

1 Approximate Comparison Table structural alloy steel

2 Approximate Comparison Table

China		Japan	International Organization for Standardization	European Standard
GB	ISC	JIS	ISO	EN	Numerical Grade
30CrMo	A30302	SCM425 SCM425H	25CrMo4	25CrMo4	1.7218

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	SAE	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
30CrMo	SCM420 SCM430	4130	25CrMo4	25CrMo4	25CD4	25CrMo4	1.7218	20KHM 30KHM 30KHMA	2225	708A25 708M25 CFS10

4 Approximate Comparison Table structural alloy steel

30CrMo 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"!