C20E4 - ISO 683-18-1996

Grade	C20E4
Corresponding Standard	ISO 683-18-1996 Heat-treatable steels, alloy steels and free-cutting steels
Classification	Carbon Steel

C20E4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.17	0.1	0.3	-	-
Maximum Value	0.23	0.4	0.6	0.035	0.035

Approximate Comparison Table High-Quality Carbon Structural Steel

China		United States	International Organization for Standardization	European Standard
GB	ISC	ASTM/AISI	ISO	EN	Numerical Grade
20Mn (GB/T 699-2015)	U21202	1022 (ASTM A29/A29M:2005)	C20E4 (ISO 683-18:1996)	C22E (EN 10083-1:1991+A1:1996) (EN 10084:1998)	1.1151

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