40ХН2МА 40ХНМА - GOST 4543-1971

Grade	40ХН2МА
Other Names
Corresponding Standard	GOST 4543-1971 Alloyed Construction Steel Specifications
Classification	Alloy Steel
Properties	Quench Hardness

40ХН2МА Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.37	0.17	0.5	-	-	0.6	1.25	-	0.15
Maximum Value	0.44	0.37	0.8	0.025	0.025	0.9	1.65	0.3	0.25

• The letter A at the end of the grade stands for “high quality steel”. Character III means “Extra high quality steel”. For example, quality steel -30XΓC; High quality steel -30XΓCA; Extra high quality steel -30X ΓC-Ⅲ and 30XΓCA-Ⅲ.

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