4145 - ASTM A519/A519M-2024

Grade	4145
Corresponding Standard	ASTM A519/A519M-2024 Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
Classification	Alloy Steel

4145 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni ^*	Cu ^*	Mo
Minimum Value	0.43	0.15	0.75	-	-	0.8	-	-	0.15
Maximum Value	0.48	0.35	1	0.04	0.04	1.1	0.25	0.35	0.25

1 Approximate Comparison Table Structural Alloy Steel

2 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

4145 Corresponding Standards(Same grade name, different standards)

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