SCM421 - JIS G 4053-2003

Grade	SCM421
Corresponding Standard	JIS G 4053-2003 Alloy steel plate for machinery
Classification	Alloy Steel

SCM421 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.17	0.15	0.7	-	-	0.9	-	-	0.15
Maximum Value	0.23	0.35	1	0.03	0.03	1.2	0.25	0.3	0.25

New and Old Grade Replacement List

Approximate Comparison Table Structural Alloy Steel

SCM421 Corresponding Standards(Same grade name, different standards)

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