T9 T00090 - GB /T 1298-2008

T9 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	W	V
Minimum Value	0.85	-	-	-	-	-	-	-	-	-	-
Maximum Value	0.94	0.35	0.4	0.035	0.03	0.25	0.2	0.25	0.2	0.3	0.02

1 Approximate Comparison Table Carbon Tool Steel

China		Japan	United States		International Organization for Standardization	European Standard
GB	ISC	JIS	ASTM	UNS	Numerical Grade	EN
T9	T00090	SK90	W1-8 1/2	T72301	C90U	C90U

2 Approximate Comparison Table Carbon Tool Steel

China	Japan	United States	International Organization for Standardization	France	Russia	United Kingdom
GB	JIS	ASTM	ISO	NF EN/NF	GOST	BS EN/BS
T9	SK5	W1-81/2	TC90	Y1 90	У9	BW1A

3 Approximate Comparison Table Carbon Tool Steel 1

China		Japan	United States		International Organization for Standardization	France	Russia	United Kingdom
GB	ISC	JIS	ASTM	UNS	ISO	NF EN/NF	GOST	BS EN/BS
T9	T00090	SK90	W1A-8 1/2	T72301	C90U	C90U C90E2U	У9-1	C90U BW1A

4 Approximate Comparison Table Carbon Tool Steel 2

China		Japan	United States	International Organization for Standardization	European Standard		Russia
GB	ISC	JIS	ASTM	ISO	EN	Numerical Grade	GOST
T9	T00090	SK85 (SK5)	W1A-8 1/2 Grade A	C90U (TC90)	C90U	1.1830	У9

T9 Corresponding Standards(Same grade name, different standards)

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