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Grade CuNi12Zn24
Germany W-Nr. CW403J
Corresponding Standard DIN EN 12163-2016
Copper and copper alloys – Rod for general purposes
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
diameter/width arcoss-flats
d/t
mm		 Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
2<d/t≤50 CuNi12Zn24-R380 R380 ≥380 ≥290 ≥28(A100)，
≥33(A11.3)，
≥38(A)
2<d/t≤50 CuNi12Zn24-H085 H085 85~125
2<d/t≤40 CuNi12Zn24-R450 R450 ≥450 ≥200 ≥8(A100)，
≥10(A11.3)，
≥12(A)
2<d/t≤40 CuNi12Zn24-H125 H125 125~150
2<d/t≤10 CuNi12Zn24-R540 R540 ≥540 ≥400 ≥2(A100)，
≥3(A11.3)，
≥5(A)
2<d/t≤10 CuNi12Zn24-H160 H160 160~190
2<d/t≤4 CuNi12Zn24-R640 R640 ≥640 ≥500
2<d/t≤4 CuNi12Zn24-H190 H190 ≥190
All specifications CuNi12Zn24-M M No specification No specification No specification No specification
①Material condition names and character codes:
H - Hardness (Brinell or Vickers hardness), with the suffix number indicating the hardness value.
R - Tensile strength, with the suffix number indicating the minimum tensile strength value.
M - Manufactured without specified mechanical properties.
Refer to standard EN 1173-2008.
②A100、A11.3、A-gauge length
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
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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