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High Copper Alloys
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High Copper Alloys CuCo2Be (CW104C)

CuCo2Be combines high strength with good electrical conductivity, sitting between CuCr1Zr, which conducts even better, and CuBe2, which is even stronger. Under EN it is designated CW104C, the material number is 2.1285. For resistance welding electrodes, CuCo2Be is the right choice where CuCr1Zr reaches its mechanical limit.

We supply CuCo2Be as round bars, flat bars and hexagonal bars ex stock. Cut to your dimensions, no minimum order.

Index

Properties

Chemical properties

Cu Rest
Be 0,4 - 0,7 %
Co 2,0 - 2,8 %
Fe max. 0,2 %
Ni max. 0,3 %
Othersmax. 0,5 %

Mechnical properties - bars

ConditionTensile strength
Rm N/mm2		Yield strength
Rp 0,2 N/mm2		Elongation
A %		Hardness
HB
R680 / H220≥ 680≥ 550≥ 10220 -270

Note: CuCo2Be contains beryllium. Ensure adequate extraction when machining, grinding and welding.

Product variants

Round bars

Alloy 
CuCo2Be, CW104C
Variant 
drawn, solution annealed
Norm 
DIN EN 12163 :1998
Tolerance 
DIN 1756, h11
Ø       6 mm + 0 / - 0,08 mm
Ø  8 - 10 mm + 0 / - 0,09 mm
Ø 11 - 18 mm + 0 / - 0,11 mm
Ø 19 - 30 mm + 0 / - 0,13 mm
Ø 31 - 50 mm + 0 / - 0,16 mm
Ø 51 - 91 mm + 0 / - 0,19 mm
Datasheet Datasheet

Flat bars

Alloy 
CuCo2Be, CW104C
Variant 
drawn, solution annealed, hardened
Norm 
DIN EN 12163 / 12167
Tolerance 
DIN 1759 II
Datasheet Datasheet

Hexagon bars

Alloy 
CuCo2Be, CW104C
Variant 
drawn, solution annealed
Norm 
DIN EN 12163:1998
Tolerance 
DIN 1763, h12
SW 19 - 30 mm + 0 /- 0,21 mm
Datasheet Datasheet

Similar materials

  • CuCo2Be, 2.1285, DIN 17 666
  • C17500 UNS
  • C102, BS 2872, 2874

Typical applications

  • Resistance welding electrodes, especially under high mechanical load
  • Electrode holders and electrode adapters
  • Mould inserts in plastics tooling
  • Current-carrying components under high load

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Rely on Schreier Metall, your partner for electrode materials in CuCo2Be and other non-ferrous metal semi-finished products. We offer reliability, fair prices and consistently secure supply. Get in touch, we are glad to advise you.

 

 

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