High-Quality C18150 Chromium-Zirconium copper alloy Company, Companies

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. 

Product Description

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.
Outstanding 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.
Compared to pure copper: strength is increased by more than 3 times, while maintaining over 90% conductivity efficiency.
High Strength & Wear Resistance
Hardness range HRB 78-88 (HV 160-185), tensile strength up to 640MPa. Features excellent fatigue resistance, reducing electrode loss rate by 30%. Microstructure is dense to avoid cracking.
High-Temperature Stability
Softening temperature ≥ 550℃. Maintains mechanical properties during high-temperature welding (like automotive body panels), with a service life 2-3 times longer than ordinary copper alloys.
Eco-Friendly & Cost-Effective
Contains no toxic elements such as beryllium, fully compliant with RoHS standards. Offers better cost performance than beryllium copper, reducing mold manufacturing costs by 15%-20%.
Frequently Asked Questions
What are the primary components of C18150 alloy?
C18150, also known as CuCrZr, consists of a copper base with 0.1%-1.5% Chromium and 0.02%-0.6% Zirconium to enhance its mechanical and thermal properties.
How does C18150 compare to pure copper?
While maintaining over 90% of pure copper's conductivity, C18150 provides more than three times the tensile strength and significantly higher hardness.
Why is C18150 preferred for welding electrodes?
Its high softening temperature (≥ 550°C) and excellent wear resistance allow it to maintain its shape and performance under the intense heat of industrial welding.
Is C18150 a safe alternative to Beryllium Copper?
Yes, C18150 is RoHS compliant and does not contain toxic beryllium, making it an environmentally friendly and safer choice for manufacturing environments.
What industries benefit most from using CuCrZr?
It is extensively used in automotive spot welding, plastic mold manufacturing, aerospace components, and high-power electronic connectors.
Does C18150 resist cracking during use?
Yes, thanks to vacuum melting and specialized aging treatments, the alloy has a very dense microstructure that provides excellent crack and fatigue resistance.

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