High Quality Chromium Copper Rod for Spot Welder

Chromium copper has good conductivity, thermal conductivity, high hardness, wear resistance, explosion resistance, crack resistance, high softening temperature, fast welding speed, low cost, and is suitable for use as electric spark and welding electrode. It is the preferred material to replace tungsten copper based on material cost.

At room temperature and higher temperature (400 ° С) It has high strength and hardness, good electrical conductivity and thermal conductivity, good wear resistance and antifriction. After age hardening treatment, the strength, hardness, electrical conductivity and thermal conductivity are significantly improved, and it is easy to weld and braze. It has good corrosion resistance in atmosphere and fresh water, good high-temperature oxidation resistance, and can withstand pressure processing in cold and hot states, but its disadvantage is that it is sensitive to notch, Stress concentration at notch and sharp corner is easy to cause mechanical damage. Therefore, it is not suitable to make commutator slices.