C90U 1.1535 - DIN EN ISO 4957-2018

Grade	C90U
Germany W-Nr.	1.1535
Corresponding Standard	DIN EN ISO 4957-2018 Tool steels
Classification	Carbon Steel
Density	7.85 g/cm³

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

• Elements not quoted in this table shall not be intentionally added to the steel without the agreement of the purchaser, other than for the purpose of finishing the heat . All reasonable precautions shall be taken to prevent the addition from scrap or other material used in the manufacture, of such elements which affect the hardenability, mechanical properties and applicability.

C90U Mechanical Properties

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

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

C90U Corresponding Standards(Same grade name, different standards)

1	DIN EN ISO 4957-2018
	C90U 1.1535
2	EN ISO 4957-2018
	C90U 1.1535
3	ISO 4957-2018
	C90U 1.1535

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