Copper-Zirconium (Cu-Zr) Master Alloy | High-Strength Copper Grain Refiner

Our Copper-Zirconium (Cu-Zr) master alloy is independently vacuum-melted in our Ganzhou factory. This rare-earth-free intermediate alloy is a core modification additive for high-strength and high-conductivity copper alloys. Zirconium elements are evenly distributed in copper melt, which can effectively refine grain structure, purify molten copper, significantly improve mechanical strength, softening resistance and thermal stability while maintaining excellent electrical conductivity.

We provide standard industrial Cu-Zr grades and fully customized zirconium content solutions. With ultra-low impurity control and stable component ratio, it is widely used in high-end electrical copper alloys, precision copper parts and new copper material development fields.

Chemical Composition

Custom zirconium proportion and special specifications are supported.

Key Features

• Advanced vacuum melting technology, low gas content and pure texture

• Excellent grain refining and purification effect for copper melt

• Improves copper alloy strength, wear resistance and softening resistance

• Maintains high electrical conductivity while optimizing mechanical properties

• Enhances thermal stability and service life of high-temperature copper components

• Stable modification effect, suitable for continuous industrial batch production

Main Applications

• High-strength high-conductivity electrical copper alloy production

• High-temperature resistant copper conductive components and precision electrical parts

• Wear-resistant copper structural parts for machinery and industrial equipment

• Copper alloy grain refinement and casting defect optimization

• New copper-based material research and customized alloy development

Our Production Advantages

• Factory direct vacuum melting production, stable long-term bulk supply

• Complete batch inspection system, official COA test reports provided

• Flexible customization of Zr content and alloy lump size

• Strict impurity control to ensure high conductivity and mechanical performance

Product Specifications

• Forms: Ingot, lump, chunk

• Single piece weight: 1–5kg or customized

• Standard grades: 5%–15% Zr content optional

Packaging & Shipment

Inner plastic bag packaging with outer iron drum protection, standard 50KG per drum, effectively preventing oxidation and damage during long-distance sea transportation. Sea freight and air freight are both available with flexible delivery arrangements.

Request A Quote

For customized Zirconium proportion, special size requirements or bulk quotation, please submit your inquiry through our RFQ page.