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Grade CuNi18Zn20
European Standard Steel Grade CW409J
Corresponding Standard EN 12166-2016
Copper and copper alloys - Wire 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*
d
mm		 Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
1.5<d≤20 CuNi18Zn20-H105 H105 HV
105~145
1.5<d≤12 CuNi18Zn20-H145 H145 145~185
1.5<d≤10 CuNi18Zn20-H180 H180 180~220
1.5<d≤4 CuNi18Zn20-H210 H210 ≥210
d≤1.5 CuNi18Zn20-H230 H230 ≥230
1.5<d≤20 CuNi18Zn20-R400 R400 ≥400 ≤290 ≥25(A100)，
≥30(A11.3)，
≥35(A)
0.1<d≤12 CuNi18Zn20-R480 R480 ≥480 ≥250 ≥7(A100)，
≥9(A11.3)，
≥11(A)
0.1<d≤10 CuNi18Zn20-R580 R580 ≥580 ≥400 ≥2(A100)，
≥3(A11.3)，
≥5(A)
0.1<d≤4 CuNi18Zn20-R660 R660 ≥660 ≥550
0.1<d≤1.5 CuNi18Zn20-R800 R800 ≥800 ≥750
All specifications CuNi12Zn24-M M No specification No specification No specification No specification
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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