Chromium-zirconium Copper Bar

1、Product range available

(1) State: Th04; (2) Diameter: φ4.0mm-φ40.0mm. This product is suitable for electrode contact materials, electric welding electrodes, electrode grips, electrode holders, resistance welding electrodes and equipment parts, projection welding machine grinders and fixtures, seam welding wheels, electric spark discharge electrodes, soldering iron tips, etc.

2、Core characteristics

Characteristics Value/performance Compared with ordinary brass

Electrical conductivity 80-85% IACS (annealed state) Better than brass (≈30% IACS)

Hardness 120-180 HV (after age hardening) Higher than pure copper (≈50 HV)

Softening temperature ≥500°C Much better than pure copper (200°C)

Tensile strength 400-600 MPa (cold working + aging) Close to steel strength

Wear resistance Excellent, suitable for sliding friction parts Better than pure copper

High electrical and thermal conductivity

Good strength and hardness

Heat and wear resistance

Strong anti-deformation ability

3、Chrome-zirconium copper rod performance parameters

4、Application fields

Resistance welding electrodes: spot welding/seam welding heads (high conductivity + resistance to high temperature softening)、Gas shielded welding contact nozzle、Resistance welding electrode cap

Mold materials: plastic injection mold inserts (fast heat dissipation, extended mold life).

Power industry: high-voltage switch contacts, circuit breaker components (resistance to arc erosion).

Aerospace: rocket engine lining (resistance to high temperature gas erosion).

Rail transportation: pantograph slide plate (wear-resistant and stable conductivity).