9S20 Type 1 - ISO 683-9-1988

Grade	9S20
ISO Numeric Designation	Type 1
Corresponding Standard	ISO 683-9-1988 Heat-treatable steels,alloy steels and free-cutting steels-Part 9:Wrought free-cutting steels
Classification	Carbon Steel
Properties	Machinability

9S20 Chemical Element Composition Content (%)

Component	C	Si	Mn ^①	P	S
Minimum Value	-	-	0.6	-	0.15
Maximum Value	0.13	0.05	1.2	0.11	0.25

1 Approximate Comparison Table Free-Cutting Structural Steel

China		Japan	United States	International Organization for Standardization	Russia
GB	ISC	JIS	ASTM	ISO	GOST
Y08	U71082	SUM23	1215	9S20	А11

2 Approximate Comparison Table Free-Cutting Structural Steel

China	Japan	International Organization for Standardization
GB	JIS	ISO
Y08	SUM21	9S20

3 Approximate Comparison Table Free-Cutting Structural Steel

China	Japan	United States	International Organization for Standardization
GB	JIS	ASTM	ISO
Y08	SUM23	1215	9S20

9S20 Corresponding Standards(Same grade name, different standards)

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