4130 - ASTM A519/A519M-2024

Grade	4130
Corresponding Standard	ASTM A519/A519M-2024 Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
Classification	Alloy Steel

4130 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni ^*	Cu ^*	Mo
Minimum Value	0.28	0.15	0.4	-	-	0.8	-	-	0.15
Maximum Value	0.33	0.35	0.6	0.04	0.04	1.1	0.25	0.35	0.25

4130 Mechanical Properties

condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
HR-Hot rolled	620	485	20	HRB 89
SR-Stress Relieved	725	585	10	HRB 95
A-Annealed	515	380	30	HRB 81
N-Normalized	620	415	20	HRB 89

1 Approximate Comparison Table Structural Alloy Steel

2 Approximate Comparison Table Structural Alloy Steel

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

4130 Corresponding Standards(Same grade name, different standards)

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