Magnesium-Strontium (Mg-Sr) Master Alloy | High-Efficiency Magnesium Casting Modifier

Vacuum-melted Mg-Sr master alloy without rare earth elements. High-efficiency modifier for magnesium casting alloys, improving fluidity and grain structure. Custom strontium content supported.

Magnesium-Strontium (Mg-Sr) Master Alloy | High-Efficiency Magnesium Casting Modifier

Our Magnesium-Strontium master alloy is independently vacuum-melted in our Ganzhou factory. This product contains no rare-earth elements, serving as a high-efficiency special modifier for magnesium casting alloys. It can effectively improve the casting fluidity, grain structure uniformity and surface finish of magnesium castings, with stable modification performance and high repeatability.

We supply standard industrial grades and support fully customized strontium content. With ultra-low impurity control and stable batch quality, it is widely used in high-quality magnesium casting production and industrial modification.

Chemical Composition (Standard Grades)

Grade	Strontium (Sr) Content	Magnesium (Mg)	Max Impurities (Fe, Si, Cu, Ni, Al, Mn)
Standard Mg-Sr	Customizable 10%–30%	Balance	≤0.05% total

Custom strontium content and special specifications are available on request.

Key Features

In-house vacuum melting process: Low gas content, pure texture, stable batch performance
Uniform element distribution & stable modification: Even strontium dispersion in magnesium melt, consistently optimizes casting fluidity and eliminates casting defects
Professional grain refinement effect: Effectively refines coarse grain structure, improves surface finish and dimensional stability of magnesium castings
Ultra-low impurity control: Strict raw material screening and batch purification, suitable for high-quality casting and precision component production
Enhanced casting performance: Greatly improves mold filling capacity, reduces shrinkage porosity and cracking rate of magnesium alloy products
Cost-effective industrial modifier: No rare earth elements, stable performance and low comprehensive cost for long-term mass production

Main Applications

High-quality magnesium alloy casting production and surface quality optimization
Grain refinement and microstructure uniformity improvement of die-cast and gravity-cast magnesium alloys
Automotive lightweight casting components, household and industrial precision magnesium parts
Casting defect control (porosity, shrinkage, cracking) for magnesium alloy products
Conventional magnesium alloy formula optimization and stable industrial batch manufacturing

Our Production Advantages

Factory direct vacuum melting: In-house production line, no intermediate links, stable component ratio and reliable quality
Strict batch quality inspection: Each batch undergoes professional laboratory testing, complete COA test reports provided
Diversified customization service: Support customized Sr content, alloy lump size and technical parameters
Stable bulk supply capacity: Meet long-term large-scale ordering and stable delivery demands of industrial customers

Product Specifications

Available Forms: Ingot, lump, chunk
Single piece weight: 1–5kg or customized
Standard grades: 10%–30% Sr 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 Strontium proportion, special size specifications or bulk batch quotation, please submit your inquiry through our RFQ page. We provide professional technical support and cost-effective stable supply services.

Pre：Magnesium‑Nickel (Mg‑Ni) Master Alloy | High‑Performance Magnesium Intermediate Additive