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Grade CuNi18Zn20
European Standard Steel Grade CW409J
Corresponding Standard EN 12166-1998
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
diameter③
d
mm		 Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
0.1≤d≤0.5 CuNi18Zn20-R450 Soft; R450 450~560 ≈200* ≥20*(A100)
0.5<d≤1.5 CuNi18Zn20-R430 Soft; R430 430~550 ≈200* ≥25(A100)
1.5<d≤4 CuNi18Zn20-R420 Soft; R420 420~540 ≈190* ≥30(A100)
1.5≤d≤4 CuNi18Zn20-H100 Soft; H100 HV: 100~150
4<d≤20 CuNi18Zn20-R410 Soft; R410 410~530 ≈180* ≥35(A11.3)；
≥40(A)
4<d≤20 CuNi18Zn20-H095 Soft; H095 HV: 95~145
0.1≤d≤0.5 CuNi18Zn20-R550 1/4-Hard; R550 550~650 ≈360*
0.5<d≤1.5 CuNi18Zn20-R530 1/4 Hard; R530 530~630 ≈350* ≥6*(A100)
1.5<d≤4 CuNi18Zn20-R510 1/4 Hard; R510 510~610 ≈340* ≥10*(A100)
1.5≤d≤4 CuNi18Zn20-H150 1/4-Hard; H150 HV: 150~185
4<d≤20 CuNi18Zn20-R490 1/4 Hard; R490 490~590 ≈320* ≥12*(A11.3)；
≥15*(A)
4<d≤20 CuNi18Zn20-H145 1/4 Hard; H145 HV: 145~180
0.1≤d≤0.5 CuNi18Zn20-R640 1/2-Hard; R640 640~750 ≈520*
0.5<d≤1.5 CuNi18Zn20-R620 1/2 Hard; R620 620~720 ≈500*
1.5<d≤4 CuNi18Zn20-R600 1/2-Hard; R600 600~700 ≈490*
1.5≤d≤4 CuNi18Zn20-H180 1/2 Hard; H180 HV: 180~210
4<d≤8 CuNi18Zn20-R570 1/2-Hard; R570 570~670 ≈470*
4<d≤8 CuNi18Zn20-H175 1/2 Hard; H175 HV: 175~205
0.1≤d≤0.5 CuNi18Zn20-R750 Hard; R750 750~880 ≈730*
0.5<d≤1.5 CuNi18Zn20-R720 Hard; R720 720~830 ≈700*
1.5<d≤4 CuNi18Zn20-R700 Hard; R700 700~800 ≈680*
1.5≤d≤4 CuNi18Zn20-H205 Hard; H205 HV: 205~235
4<d≤8 CuNi18Zn20-R660 Hard; R660 660~770 ≈640*
4<d≤8 CuNi18Zn20-H200 Hard; H200 HV: 200~230
0.1≤d≤0.5 CuNi18Zn20-R880 Toughness and hardness; R880 ≥880 ≈880*
0.5<d≤1.5 CuNi18Zn20-R830 Toughness and hardness; R830 ≥830 ≈840*
1.5<d≤4 CuNi18Zn20-R800 Tough and Hard; R800 ≥800 ≈810*
1.5≤d≤4 CuNi18Zn20-H235 Toughness and hardness; H235 HV: ≥235
All specifications CuNi18Zn20-M M No specification No specification No specification No specification
①Material condition designation: H-Hardness (Brinell or Vickers), the suffix number indicates the hardness value; R-Tensile strength, the suffix number indicates the minimum tensile strength; M-As manufactured, without specified mechanical properties
②A100, A11.3, A-gauge length
③Or equivalent cross-sectional area for polygonal wire.
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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