C90U 1.1535 - EN ISO 4957-2018

Grade	C90U
European Standard Steel Grade	1.1535
Corresponding Standard	EN ISO 4957-2018 Tool steels
Classification	Carbon Steel

C90U Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.85	0.1	0.1	-	-
Maximum Value	0.95	0.3	0.4	0.03	0.03

C90U Mechanical Properties

	Hardness HBW
Annealed (+A)	≤207
Quenching and Tempering	HRC ≥60

1 Approximate Comparison Table

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 Non-alloy cold-work tool steels

Japan	International Organization for Standardization	Germany		European Standard
JIS	ISO	DIN EN/DIN	W-Nr.	EN	Numerical Grade
SK5 (SK85) SK4 (SK95)	C90U	C90U	1.1535	C90U	1.1535

3 Approximate Comparison Table Non-alloy cold-work tool steels

4 Approximate Comparison Table

China		Japan	United States		International Organization for Standardization	European Standard		Russia
GB	ISC	JIS	ASTM	UNS	ISO	EN	Numerical Grade	GOST
T9	T00090	SK85 (SK5)	W1A-8 1/2	T72301	C90U (TC90)	C90U	1.1830	У9

5 Approximate Comparison Table

China		Japan	United States		International Organization for Standardization	European Standard		Russia
GB	ISC	JIS	ASTM	UNS	ISO	EN	Numerical Grade	GOST
T8Mn	T01080	SK85 SK85	W1-C8	T72301	C90U (TC90)	C90U	1.1830	У8Г

C90U Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!