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C18150 Chromium-Zirconium Copper Alloy: High Conductivity, Strength, and Heat Resistance from China Suppliers and Factory
C18150 chromium-zirconium copper (chemical formula CuCrZr) is a copper-based alloy reinforced with chromium (0.1%-1.5%) and zirconium (0.02%-0.6%). It possesses high electrical conductivity, high strength, and resistance to high-temperature softening, and is widely used as a substitute for materials such as beryllium copper, becoming a core material in fields such as welding, molds, and aerospace.
Core Features & Technical Advantages
1. Electrical & Thermal Conductivity
The conductivity rate reaches 75%-85% IACS, and the thermal conductivity is approximately 320W/m·K. This ensures efficient current transmission and heat dissipation, suitable for high-power welding and precision electronic components.
Compared to pure copper: strength is increased by more than 3 times, while maintaining over 90% conductivity efficiency.
2. Strength & Wear Resistance
Hardness range HRB 78-88 (HV 160-185), tensile strength up to 640MPa, excellent fatigue resistance, and electrode loss rate reduced by 30%. After vacuum melting and aging treatment, the microstructure is dense, avoiding cracking or deformation during welding.
3. High-Temperature Stability
Softening temperature ≥ 550℃, maintaining mechanical properties during high-temperature welding (such as point welding of automotive body panels), with a service life 2-3 times longer than that of ordinary copper alloys.
4. Eco-Friendliness & Cost
Contains no toxic elements such as beryllium, in line with RoHS standards; cost performance is better than beryllium copper, and the mold manufacturing cost is reduced by 15%-20%.
Frequently Asked Questions (FAQ)
What is C18150 chromium-zirconium copper?
C18150 (CuCrZr) is a copper-based alloy reinforced with 0.1%-1.5% chromium and 0.02%-0.6% zirconium. It is designed to offer high electrical conductivity, high strength, and excellent resistance to high-temperature softening.
How does C18150 compare to pure copper?
Compared to pure copper, C18150 increases mechanical strength by more than 3 times while maintaining over 90% of pure copper's electrical conductivity efficiency (achieving 75%-85% IACS).
What is the softening temperature of C18150, and why does it matter?
The softening temperature of C18150 is ≥ 550℃. This high threshold allows the alloy to maintain its strength and mechanical properties during high-temperature operations like spot welding, extending its service life to 2-3 times that of ordinary copper alloys.
Can C18150 replace beryllium copper?
Yes. C18150 is a common, environmentally friendly substitute for beryllium copper. It contains no toxic beryllium, complies fully with RoHS standards, and can reduce mold manufacturing costs by 15%-20%.
What are the primary applications of C18150?
Due to its high conductivity and wear resistance, C18150 is widely used in welding electrodes (such as automotive body panel spot welding), mold manufacturing, aerospace components, and high-power electrical devices.