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Grade CuNi12Zn24
European Standard Steel Grade CW403J
Corresponding Standard EN 12166-1998
Classification Copper and Copper Alloys
Density 8.7 g/cm3
CuNi12Zn24 Chemical Element Composition Content (%)
Component Fe Mn Ni Cu Pb Sn Other Total More
Minimum Value - - 11 63 - - - Zn:余量
Maximum Value 0.3 0.5 13 66 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.
CuNi12Zn24 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 CuNi12Zn24-R430 Soft; R430 430~530 ≈190* ≥20*(A100)
0.5<d≤1.5 CuNi12Zn24-R400 Soft; R400 400~510 ≈180* ≥25(A100)
1.5<d≤4 CuNi12Zn24-R370 Soft; R370 370~480 ≈170* ≥30(A100)
1.5≤d≤4 CuNi12Zn24-H085 Soft; H085 HV: 85~140
4<d≤20 CuNi12Zn24-R360 Soft; R360 360~480 ≈160* ≥35(A11.3)；
≥40(A)
4<d≤20 CuNi12Zn24-H080 Soft; H080 HV: 80~130
0.1≤d≤0.5 CuNi12Zn24-R520 1/4 Hard; R520 520~620 ≈340* ≥5*(A100)
0.5<d≤1.5 CuNi12Zn24-R480 1/4 Hard; R480 480~580 ≈320* ≥8*(A100)
1.5<d≤4 CuNi12Zn24-R460 1/4 Hard; R460 460~560 ≈310* ≥12*(A100)
4<d≤20 CuNi12Zn24-R440 1/4 Hard; R440 440~540 ≈290* ≥15*(A11.3)；
≥20*(A)
1.5≤d≤20 CuNi12Zn24-H130 1/4 Hard; H130 HV: 130~170
0.1≤d≤0.5 CuNi12Zn24-R620 1/2 Hard; R620 620~730 ≈510*
0.5<d≤1.5 CuNi12Zn24-R580 1/2 hard; R580 580~680 ≈470*
1.5<d≤4 CuNi12Zn24-R560 1/2 Hard; R560 560~660 ≈460* ≥5*(A100)
1.5≤d≤4 CuNi12Zn24-H170 1/2 hard; H170 HV: 170~200
4<d≤8 CuNi12Zn24-R530 1/2 Hard; R530 530~630 ≈440* ≥6*(A11.3)
4<d≤8 CuNi12Zn24-H165 1/2 Hard; H165 HV: 165~195
0.1≤d≤0.5 CuNi12Zn24-R730 Tough hard; R730 730~850 ≈710*
0.5<d≤1.5 CuNi12Zn24-R680 Tough hard; R680 680~800 ≈670*
1.5<d≤4 CuNi12Zn24-R660 Tough hard; R660 660~780 ≈650*
1.5≤d≤4 CuNi12Zn24-H195 Hard; H195 HV: 195~225
4<d≤8 CuNi12Zn24-R630 Hard; R630 630~750 ≈620*
4<d≤8 CuNi12Zn24-H185 Hard; H185 HV: 185~215
0.1≤d≤0.5 CuNi12Zn24-R850 Tough Hard; R850 ≥850 ≈860*
0.5<d≤1.5 CuNi12Zn24-R800 Tough and Hard; R800 ≥800 ≈810*
1.5<d≤4 CuNi12Zn24-R780 Tough hard; R780 ≥780 ≈790*
1.5≤d≤4 CuNi12Zn24-H210 Tough hard; H210 HV: ≥210
All specifications CuNi12Zn24-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
CuNi12Zn24 2.0730 CuNi12Zn24 CW403J
CuNi12Zn24 Corresponding Standards(Same grade name, different standards)
1 EN 12163-1998
CuNi12Zn24 CW403J
2 EN 12166-1998
CuNi12Zn24 CW403J
3 EN 1654-1998
CuNi12Zn24 CW403J
4 EN 12166-2016
CuNi12Zn24 CW403J
5 DIN 17672-1-1983
CuNi12Zn24 2.0730
6 DIN EN 12163-1998
CuNi12Zn24 CW403J (2.0730)
7 DIN EN 12163-2016
CuNi12Zn24 CW403J
8 DIN 17671-1-1983
CuNi12Zn24 2.0730
9 DIN EN 12166-2016
CuNi12Zn24 CW403J
10 DIN EN 12166-1998
CuNi12Zn24 CW403J
11 EN 12163-2016
CuNi12Zn24 CW403J
12 EN 12167-2024
CuNi12Zn24 CW403J
13 DIN EN 12449-2019
CuNi12Zn24 CW403J
14 EN 12449-2023
CuNi12Zn24 CW403J

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