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Grade CuNi2Si
European Standard Steel Grade CW111C
Corresponding Standard EN 12163-1998
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
2<d≤80 CuNi2Si-R260 Solution heat treatment; R260 ≥260 ≈90* ≥25(A100)，
≥30(A11.3)，
≥35(A)
2<d≤80 CuNi2Si-H060 Solution heat treatment; H060 HB: 60~90；
HV: 65~95
2<d≤30 CuNi2Si-R410 Solid Solution Treatment + Cold Work; R410 ≥410 ≈370* ≥5(A100)，
≥6(A11.3)，
≥8(A)
2<d≤30 CuNi2Si-H115 Solution heat treatment + cold working; H115 HB: 115~165；
HV: 120~170
30<d≤50 CuNi2Si-R380 Solution heat treatment + cold working; R380 ≥380 ≈330* ≥10(A)
30<d≤50 CuNi2Si-H100 Solution heat treatment + cold working; H100 HB: 100~150；
HV: 105~155
50<d≤80 CuNi2Si-R320 Solution heat treatment + cold working; R320 ≥320 ≈230* ≥15(A)
50<d≤80 CuNi2Si-H090 Solution heat treatment + cold working; H090 HB: 90~140；
HV: 95~145
2<d≤80 CuNi2Sii-R490 Solution heat treatment + precipitation hardening; R490 ≥490 ≈370* ≥10(A100)，
≥12(A11.3)，
≥15(A)
2<d≤80 CuNi2Si-H150 Solution heat treatment + precipitation hardening; H150 HB: 150~200；
HV: 155~205
2<d≤30 CuNi2Si-R640 Solution heat treatment + cold working + precipitation hardening; R640 ≥640 ≈620* ≥6(A100)，
≥8(A11.3)，
≥10(A)
2<d≤30 CuNi2Si-H180 Solid Solution Treatment + Cold Work + Precipitation Hardening; H180 HB: ≥180；
HV: ≥190
30<d≤50 CuNi2Si-R600 Solution heat treatment + cold working + precipitation hardening; R600 ≥600 ≈510* ≥10(A)
30<d≤50 CuNi2Si-H165 Solution heat treatment + cold working + precipitation hardening; H165 HB: ≥165；
HV: ≥175
50<d≤80 CuNi2Si-R550 Solution heat treatment + cold working + precipitation hardening; R550 ≥550 ≈430* ≥10(A)
50<d≤80 CuNi2Si-H155 Solution heat treatment + cold working + precipitation hardening; H155 HB: ≥155；
HV: ≥165
2<d≤80 CuNi2Si-M M No specification No specification No specification No specification
① Material condition names and designations:
H - Hardness (Brinell hardness 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.
② A100, A11.3, A - Gauge length.
1 Approximate Comparison Table bronze
China Japan United States International Organization for Standardization European Standard Russia
GB JIS ASTM UNS ISO Numerical Grade EN Numerical Grade GOST
QSi0.6-2 C6470
C64700 		97.5Cu-2Ni-.5Si C64700 CuNi2Si C64700 CuNi2Si CW111C БрКН0.6-2
2 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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