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Grade CuNi18Zn20
Germany W-Nr. CW409J
Old Grade
Corresponding Standard DIN EN 12163-1998
Copper and copper alloys – Rod 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:余量
Maximum Value 0.3 0.5 19 63 0.03 0.03 0.2
"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
diameter/width across-flats
d
mm		 Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
2<d≤50 CuNi18Zn20-R400 R400 ≥400 ≈280* ≥25(A100)，
≥30(A11.3)，
≥35(A)
2<d≤50 CuNi18Zn20-H100 H100 HB: 100~140；
HV: 105~145
2<d≤40 CuNi18Zn20-R500 R500 ≥500 ≈300* ≥7(A100)，
≥9(A11.3)，
≥11(A)
2<d≤40 CuNi18Zn20-H140 H140 HB: 140~180；
HV: 145~185
2<d≤10 CuNi18Zn20-R580 R580 ≥580 ≈480*
2<d≤10 CuNi18Zn20-H170 H170 HB: 170~210；
HV: 180~220
2<d≤4 CuNi18Zn20-R650 R650 ≥650 ≈580*
2<d≤4 CuNi18Zn20-H200 H200 HB: ≥200；
HV: ≥210
2<d≤50 CuNi18Zn20-M M No specification No specification No specification No specification
New and Old Grade Replacement List
Corresponding Standard Grade
DIN 17672-1-1983
Grade
Germany W-Nr.
DIN EN 12163-1998
Grade
Germany W-Nr.
Old Grade
DIN EN 12163-2016
Grade
Germany W-Nr.
Approximate Comparison Table Cupper and cupper 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

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