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Grade CuNi2Si
Germany W-Nr. CW111C
Corresponding Standard DIN EN 12166-2016
Copper and copper alloys – Wire for general purposes
Classification Copper and Copper Alloys
Density 8.8 g/cm3
CuNi2Si Chemical Element Composition Content (%)
Component Fe Si Mn Ni Pb Other Total More
Minimum Value - 0.4 - 1.6 - - Cu:余量
Maximum Value 0.2 0.8 0.1 2.5 0.02 0.3
"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.
CuNi2Si 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≤15 CuNi2Si-H160 H160 HV
160~210
1.5<d≤15 CuNi2Si-H175 H175 175~220
1.5<d≤12 CuNi2Si-H190 H190 190~250
1.5<d≤15 CuNi2Si-R550 R550 ≥550 ≥430 ≥5(A100)
≥8(A11.3)
≥15(A)
1.5<d≤15 CuNi2Si-R600 R600 ≥600 ≥520 ≥4(A100)
≥6(A11.3)
≥10(A)
1.5<d≤12 CuNi2Si-R640 R640 ≥640 ≥590 ≥3(A100)
≥5(A11.3)
≥8(A)
All specifications CuNi2Si-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
CuNi2Si 2.0855 CuNi2Si CW111C
CuNi2Si Corresponding Standards(Same grade name, different standards)
1 EN 12163-1998
CuNi2Si CW111C
2 EN 12166-1998
CuNi2Si CW111C
3 EN 1654-1998
CuNi2Si CW111C
4 EN 12166-2016
CuNi2Si CW111C
5 DIN 17672-1-1983
CuNi2Si 2.0855
6 DIN EN 12163-1998
CuNi2Si CW111C (2.0855)
7 DIN EN 12163-2016
CuNi2Si CW111C
8 DIN EN 12166-2016
CuNi2Si CW111C
9 DIN EN 12166-1998
CuNi2Si CW111C
10 DIN 17666-1983
CuNi2Si 2.0855
11 EN 12163-2016
CuNi2Si CW111C
12 EN 12167-2024
CuNi2Si CW111C
13 DIN EN 12449-2019
CuNi2Si CW111C
14 EN 12449-2023
CuNi2Si CW111C

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