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C18150 Chromium-Zirconium Copper Alloy - High Conductivity and Strength 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 and Technical Advantages
1. Outstanding Electrical and 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. High Strength, Wear Resistance & Crack Resistance
Hardness range HRB 78-88 (HV 160-185), tensile strength up to 640MPa, excellent fatigue resistance, electrode loss rate reduced by 30%. After vacuum melting and aging treatment, the microstructure is dense, avoiding cracking or deformation during welding.
3. Resistance to High-temperature Softening
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. Environmental Friendliness & Cost Advantages
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)
Q: What is C18150 chromium-zirconium copper?
C18150 (CuCrZr) is a high-performance copper-based alloy containing 0.1%-1.5% chromium and 0.02%-0.6% zirconium. It is designed to offer a superior combination of high electrical conductivity, high strength, and excellent resistance to softening at elevated temperatures.
Q: What are the primary applications of C18150?
It is widely used as a core material in welding (such as spot welding electrodes for automotive body panels), mold manufacturing, and aerospace components, often serving as an eco-friendly substitute for beryllium copper.
Q: How does C18150 compare to pure copper in terms of strength and conductivity?
Compared to pure copper, C18150 increases mechanical strength by more than 3 times while maintaining over 90% of the conductivity efficiency, reaching an electrical conductivity of 75%-85% IACS.
Q: What is the softening temperature of C18150 and why does it matter?
C18150 has a softening temperature of ≥ 550℃. This allows the alloy to maintain its mechanical properties and structural stability during high-temperature operations, providing a service life 2-3 times longer than ordinary copper alloys.
Q: Is C18150 environmentally friendly and cost-effective?
Yes. Unlike beryllium copper, C18150 contains no toxic beryllium, making it fully compliant with RoHS standards. Additionally, it offers better cost performance, reducing mold manufacturing costs by 15% to 20%.