Tungsten Copper Electrode and Other Material Comparison

Except tungsten copper electrode, there are some copper alloy electrodes, such as pure Cu, CrCu, BeCu and so on.

1. Cu (also called red Cu, pure Cu): It has high purity, uniform distribution, lower oxygen content, no porosity, excellent thermal and electrical conductivity, etc. After heating treatment, the electrode has no direction and the molding precision has been improved. Despite heat pressing or cold pressing process, tungsten copper can be widely used in wires, cable, electric brush and some occasions requires high thermal and electrical conductivity. Cu≥99.95%, oxides ≤ 0.003%, the electrical conductivity ≥ 57%IACS, the hardness ≥ HV85.2.

2. CrCu: The hardness ＞ HRB75, the electrical conductivity ＞ 75%IACS, it has high strength and hardness at 400℃, excellent abrasion resistance and anti-attrition. After aging and hardening treatment, its thermal and electrical conductivity will be remarkably improved and easily for welding and brazing. CrCu has good corrosion resistance in the water or atmosphere, and good antioxidation at high temperature, can well withstand the pressure processing in the cold and hot states, but its drawback is a strong sensitivity to the gap in the gaps and corners causing stress concentration, prone to mechanical damage.

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