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High Copper kneaded alloys
DIN 17 666 bzw. DIN EN 12 163 bis 12 167/12 420/12 449/1652/1654
 
 Alloy  EN
  number  
 Density  ca.     Composition    
 in % of weight 
Properties and use
 CuBe2   

DIN EN
12163 - 167
12420
1652
1654
 CW101C 

8,3
Be 1,8 - 2,1
Cu Balance
The strength values stated above refer to an annealed state. Curing does not normally take place until after processing. Very high strength values when cured. Good temperature resistance, at low temperatures down to approx. -200 °C and at high temperatures up to approx. 350 °C. High wear resistance. Springs of all kinds, membranes, hard-wearing parts, non-sparking and non-magnetic tools, moulds for plastic processing.

Thermal conductivity at 20°C: 92-125 W/m K
Electrical conductivity at 20°C: 8-18 m/Ω · mm2
 
Important
tempers
Tensile Strength
Rm
N/mm²
Yield Stress
Rp0,2

N/mm²
Elongation
A
%
Bars

M
R580
R600
R650


*

≥  580
≥  600
≥  650


*
(ca. 450)

(ca. 480)
(ca. 500)


*
≥  10

≥  10
≥  8
   * = mechanical properties as manufactured

Comparable Specifications::
CuBe2, 2.1247, DIN 17666
C17200 UNS

 
Alloy EN
 number 
 Density  ca.     Composition    
 in % of weight 
Properties and use
 CuCo1Ni1Be   
DIN EN
12420
1652
 CW103C 

8,8
Co 0,8 - 1,3
Ni 0,8 - 1,3
Be 0,4 - 0,7
Cu Balance
Like CuCo2B
 
Important
tempers
Tensile Strength
Rm
N/mm²
Yield Stress
Rp0,2

N/mm²
Elongation
A
%
Bars

M
R680


*

≥  680


*
≥  550


*
≥  10
   * = mechanical properties as manufactured

Comparable Specifications::
C82200 UNS

 
 Alloy  EN
  number  
 Density  ca.     Composition    
 in % of weight 
Properties and use
 CuCo2Be   
DIN EN
12163 - 167
12420
1652
1654
 CW104C 

8,8
Be 0,4 - 0,7
Co 2,0 - 2,8
Cu Balance
High strength values when cured. Good temperature resistance. Higher electrical and thermal conductivity and slightly lower hardness and strength values as compared to Cu Be2. Hard-wearing. Electrodes for electrical resistance welding or at high welding pressures.

Thermal conductivity at 20 °C: 192-239 W/m K
Electrical conductivity at 20 °C: 25-32 m/Ω · mm2
 
Important
tempers
Tensile Strength
Rm
N/mm²
Yield Stress
Rp0,2

N/mm²
Elongation
A
%
Bars

M
R680


*

≥  680


*
≥  550


*
≥  10
   * = mechanical properties as manufactured

Comparable Specifications::
CuCo2Be, 2.1285, DIN 17666
C17500 UNS
C 112, BS 2872, 2874
 
 Alloy  EN
  number  
 Density  ca.     Composition    
 in % of weight 
Properties and use
 CuCr1Zr  

DIN EN
12163
12166
12420
 CW106C 

8,9
Cr 0,5 - 1,2
Zr 0,03 - 0,3
Cu Balance
Very high electrical and thermal conductivity at medium strength values. High softening temperature, long life. Electrodes for resistance welding.

Thermal conductivity at 20 °C: 167-320 W/m K
Electrical conductivity at 20 °C: 26-48 m/Ω · mm2, fully cured approx. 43-48 m/Ω · mm2
 
Important
tempers
Tensile Strength
Rm
N/mm²
Yield Stress
Rp0,2

N/mm²
Elongation
A
%
Bars

M
R370
R430
R470


*

≥  370
≥  430
≥  470


*
≥  250

≥  350
≥  420


*
≥  16

≥  10
≥  8
   * = mechanical properties as manufactured

Comparable Specifications::
CuCrZr, 2.1293, DIN 17666
C18150 UNS
C 102, BS 2872, 2874

 
 Alloy  EN
  number  
 Density  ca.     Composition    
 in % of weight 
Properties and use
 CuNi2Si   

DIN EN
12163 - 167
12420
12449
1652
1654
 CW111C 

8,8
Ni 1,6 - 2,5
Si 0,4 - 0,8
Cu Balance
Combines relatively high strength values with relatively good electrical conductivity when cured. Excellent temperature resistance at low and high temperatures up to approx. 450 °C. High wear resistance and corrosion resistance, good sliding properties. Fixing parts that must be corrosion-resistant and have good conductivity. Highly stressed bearing bushings, pressure discs and slipways. Shipbuilding, marine engineering and apparatus engineering.

Thermal conductivity at 20 °C: 67-120 W/m K
Electrical conductivity at 20 °C: 10-23 m/Ω · mm2
 
Important
tempers
Tensile Strength
Rm
N/mm²
Yield Stress
Rp0,2

N/mm²
Elongation
A
%
Bars

M
R550
R600
R640


*

≥  550
≥  600
≥  640


*
≥  430

≥  520
≥  590


*
≥  15

≥  10
≥  10
   * = mechanical properties as manufactured

Comparable Specifications::
CuNi2Si, 2.0855, DIN 17666
C64700, C18000 UNS
C 102, BS 2872, 2874

 

Other copper alloys available on demand.

 

We supply:
Bars
Wires
Plates / Strips
Hollow bars
Forgings
to DIN 17 672
to DIN 17 677/17
to DIN 17 670
to DIN 17 671
to DIN EN 12 420
resp. DIN EN 12 163/12 167
resp. DIN EN 12 166/682/1733
resp. DIN EN 1652/1654
resp. DIN EN 12 449