C45U 1.1730 - DIN EN ISO 4957-2018

Grade	C45U
Germany W-Nr.	1.1730
Corresponding Standard	DIN EN ISO 4957-2018 Tool steels
Classification	Carbon Steel
Density	7.85 g/cm³

C45U Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S
Minimum Value	0.42	0.15	0.6	-	-
Maximum Value	0.5	0.4	0.8	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.

C45U Mechanical Properties

	Hardness HBW
Annealed (+A)	≤207
Quenching and Tempering	HRC ≥54

New and Old Grade Replacement List

Corresponding Standard	Grade
DIN 17350-1980	Grade Germany W-Nr.
DIN EN ISO 4957-2018	Grade Germany W-Nr.

Approximate Comparison Table Non-Alloy Cold-Work Tool Steels

International Organization for Standardization	Germany		European Standard
ISO	DIN EN/DIN	W-Nr.	EN	Numerical Grade
C45U (C45W)	C45U	1.1730	C45U	1.1730

C45U Corresponding Standards(Same grade name, different standards)

1	DIN EN ISO 4957-2018
	C45U 1.1730
2	EN ISO 4957-2018
	C45U 1.1730
3	ISO 4957-2018
	C45U 1.1730

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