CuNi18Zn20 CW409J - EN 12449-2023

Grade	CuNi18Zn20
European Standard Steel Grade	CW409J
Corresponding Standard	EN 12449-2023 Copper and Copper Alloys - Seamless, Round Tubes for General Purposes
Classification	Copper and Copper Alloys
Density	8.7 g/cm³

CuNi18Zn20 Chemical Element Composition Content (%)

Component	Fe	Mn	Ni	Cu	Pb	Sn	Other Total	More
Minimum Value	-	-	17	60	-	-	-	Zn：Rem.
Maximum Value	0.3	0.5	19	63	0.03	0.03	0.2	Zn：Rem.

"Other individual elements or other totals": The chemical composition includes elements not specified in the table. Analysis should only be conducted if these elements are suspected to be present, or if routine analysis suggests that their content may exceed the prescribed limits.

CuNi18Zn20 Mechanical Properties

Wall thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Hardness HBW
t≤10	R370 (Annealed condition)	≥370	≤290	≥40
t≤10	H080 (Annealed condition)				75~110
t≤5	R440	≥440	≥290	≥20
t≤5	H115				110~145
t≤3	R540	≥540	≥450	≥5
t≤3	H145				≥140

Approximate Comparison Table Copper and Copper Alloy

Germany		European Standard
DIN EN/DIN	W-Nr.	EN	Numerical Grade
CuNi18Zn20	2.0740	CuNi18Zn20	CW409J

CuNi18Zn20 Corresponding Standards(Same grade name, different standards)

1	EN 12163-1998
	CuNi18Zn20 CW409J
2	EN 12166-1998
	CuNi18Zn20 CW409J
3	EN 1654-1998
	CuNi18Zn20 CW409J
4	EN 12166-2016
	CuNi18Zn20 CW409J
5	DIN 17672-1-1983
	CuNi18Zn20 2.0740
6	DIN EN 12163-1998
	CuNi18Zn20 CW409J (2.0740)
7	DIN EN 12163-2016
	CuNi18Zn20 CW409J
8	DIN 17671-1-1983
	CuNi18Zn20 2.0740
9	DIN EN 12166-2016
	CuNi18Zn20 CW409J
10	DIN EN 12166-1998
	CuNi18Zn20 CW409J
11	EN 12163-2016
	CuNi18Zn20 CW409J
12	DIN 2076-1984
	CuNi18Zn20
13	EN 12167-2024
	CuNi18Zn20 CW409J
14	DIN EN 12449-2019
	CuNi18Zn20 CW409J
15	EN 12449-2023
	CuNi18Zn20 CW409J

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