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Grade CuNi2Si
Germany W-Nr. CW111C
Corresponding Standard DIN EN 12163-2016
Copper and copper alloys – Rod 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/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
20<d/t≤80 CuNi2Si-R550 R550 ≥550 ≥430 ≥15(A)
20<d/t≤80 CuNi2Si-H150 H150 150~190
20<d/t≤50 CuNi2Si-R600 R600 ≥600 ≥520 ≥10(A)
20<d/t≤50 CuNi2Si-H165 H165 165~210
2<d/t≤30 CuNi2Si-R640 R640 ≥640 ≥590 ≥6(A100)，
≥8(A11.3)，
≥10(A)
2<d/t≤30 CuNi2Si-H180 H180 180~230
All specifications CuNi2Si-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
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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