4142 - GB /T 18248-2021

Grade	4142
Corresponding Standard	GB /T 18248-2021 Seamless Steel Tubes for Gas Cylinder
Classification	Alloy Steel

4142 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	More
Minimum Value	0.4	0.15	0.75	-	-	0.8	-	-	0.15	P+S≤0.025
Maximum Value	0.45	0.35	1	0.02	0.01	1.1	0.3	0.2	0.25	P+S≤0.025

4142 Corresponding Standards(Same grade name, different standards)

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