Electrode Material CuCo2Be – CuCo2Be DIN EN 12163/12167

Electrode Material CuCo2Be is a high strength electrode material which, by way of special heat treatment, combines high hardness with good thermal and electrical conductivity. Heating beyond the softening temperature of 500°C significantly reduces the mechanical and physical values.

Chemical composition (DIN EN 12163:2016-11)

Element	Cu	Co	Be	Ni*	Fe*
Min. [%]	-	2	0,4	-	-
Max. [%]	Rest	2,8	0,7	3	0,2

Mechanical properties (Guideline values)

Round bars		Ø 10 - 35 mm	Ø 40 - 80 mm
Yield point R_p0,2	[N/mm²]	≥ 650	≥ 650
Tensile strength R_m	[N/mm²]	≥ 700	≥ 700
Brinell hardness	[HB]	≥ 240	≥ 220
Elongation at fracture A	[%]	≥ 10	≥ 15
Modulus of elasticity E	[kN/mm²]	~ 120	~ 120

Physical properties (Guideline values)

Coefficient of thermal expansion	[10^-6/K]	17	Electrical conductivity	[m/Wmm²]	26
Thermal conductivity	[W/mK]	196	Specific gravity	[kg/dm³]	8,8

Standards

DIN EN 12163/12167	CuCo2Be	ASTM	Alloy C 17500
DIN 17666/17672	CuCo2Be	AFNOR	UK 2 Be

Material designation

DIN EN 12163		DIN 17666
Abbreviated designation	Number	Abbreviated designation	Number
CuCo2Be	CW104C	CuCo2Be	2.1285

Forms of delivery

	Range [mm]	Tolerance [mm]	Manufacturing method
Round bars	Ø 10 - 20	0/- 0,2	drawn
Round bars	> Ø 20	0 /+1	pressed

Example uses

Electrodes for electrical resistance welding (spot, roll seam, projection and butt welding). Electrode Material CuCo2Be is primarily used to weld alloyed, high strength, corrosion-resistant steels.

Machinability

Electrode Material CuCo2Be is machinable similar to pure copper. The formation of built-up edges can be counteracted by increasing the cutting speed.

Elektrodenwerkstoff CuCo2Be - Availability

Round bars from Ø 10-105 mm are available from stock.
We also supply rectangular and flat bars by arrangement.

We will be more than pleased to advise you.

Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

Links

Additional information can be found in this Looser Bronzes catalogue or under download.

Material data sheet
Elektrodenwerkstoff CuCo2Be
PDF

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