Magnesium Zirconium (Mg-Zr) Master Alloy | MgZr25 & MgZr30 Grain Refiner

Magnesium Zirconium (Mg-Zr) Master Alloy | MgZr25 & MgZr30 Grain Refiner

Our Magnesium-Zirconium master alloy is independently vacuum-melted in our Ganzhou factory. This product contains no rare-earth elements, serving as an efficient and professional grain refiner and modifier for magnesium alloys. It can significantly refine the grain structure of cast and wrought magnesium alloys, improving material strength, toughness and structural uniformity.

We supply standard industrial grades and support customized zirconium content to meet different production and processing requirements. With ultra-low impurity control and stable component ratio, it is widely recognized in the magnesium alloy casting industry.

Chemical Composition (Standard Grades)

MgZr30 is our regularly stocked grade. Other grades (e.g., MgZr25, MgZr35) and custom Zr contents can be produced on request. Please contact us for lead time and MOQ.

Key Features

• In-house vacuum melting process: Low gas content, pure texture, stable component ratio without segregation

• Superior grain refining effect: Efficiently refine magnesium alloy grains, eliminate coarse structures, and improve material uniformity

• Ultra-low impurity control: Strict impurity screening, suitable for high-standard industrial casting production

• Significant performance improvement: Effectively enhance magnesium alloy tensile strength, toughness and fatigue resistance

• Stable industrial adaptability: Good compatibility with magnesium melt, simple addition process and stable modification effect

• ISO 9001 certified quality management system; in-house ICP testing for precise Zr and impurity control.

Main Applications

• Automotive / Transportation:Wheels, engine housings, transmission cases — grain refinement and structural optimization of cast magnesium alloys for lightweight components.

• Aerospace / Defense:Structural castings requiring grain refinement — performance modification of high-strength magnesium alloys.

• Industrial Equipment:High-strength wrought components — grain refinement and property control for demanding service conditions.

•R&D / New Materials:Custom alloy development and high-precision casting process optimization.

Our Production Advantages

• Factory direct vacuum melting production: Independent production line, stable supply and controllable quality

• Strict batch testing mechanism: Each batch is professionally inspected, complete COA test reports provided

• Powerful customization capability: Support customized Zr content, alloy lump size and technical parameters

• Professional anti-oxidation packaging: Exclusive vacuum packaging solution for easily oxidized Mg-Zr alloy to ensure long-term storage stability

Product Specifications

• Available Forms: Ingot, lump, chunk

• Single piece weight: 1–5kg or customized

• Standard grades: 10%–30% Zr content optional

Packaging & Shipment（Exclusive Anti-Oxidation Package）

Mg-Zr alloy is susceptible to oxidation during storage and transportation. We adopt full vacuum sealing inner packaging specially customized for Mg-Zr alloy, matched with outer iron drum protection, standard 50KG per drum. COA test report provided for every batch.This professional anti-oxidation packaging effectively isolates air, prevents surface oxidation and ensures intact product quality during long-distance sea transportation and storage. Sea freight and air freight are both available with stable delivery guarantee.

Request A Quote

For customized Zirconium proportion, special size requirements or batch quotation, please submit your inquiry through our RFQ page. We provide professional technical support and exclusive anti-oxidation packaging services for Mg-Zr alloy.