4J40 - GB /T 15018-1994

Grade	4J40
Corresponding Standard	GB /T 15018-1994 Designation of Precision Alloys
Classification	Alloy Steel

4J40 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Ni	Co	More
Minimum Value	-	-	-	-	-	32.4	7	Fe:余量
Maximum Value	0.05	0.15	0.25	0.02	0.02	33.4	8	Fe:余量

Approximate Comparison Table Expansion Alloys

4J40 Corresponding Standards(Same grade name, different standards)

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