4J478 4J78 - GB /T 37797-2019

Grade	4J478
Old Grade
Corresponding Standard	GB /T 37797-2019 Precision alloys—Designation
Classification	Alloy Steel

4J478 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cu	Mo	More
Minimum Value	-	-	-	-	-	-	20	Ni:余量
Maximum Value	0.05	0.3	0.4	0.02	0.02	1.5	22	Ni:余量

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