Magnesium

Material information

The Ultimate Lightweight Structural Metal

Shedding weight and boosting performance with Less Common Metals.

Magnesium is the lightest of all structural metals, weighing roughly a third less than Aluminium. In a world where every gram counts, from extending the range of an electric vehicle to launching payloads into orbit, Magnesium is the critical ingredient for ultimate lightweighting. It provides the perfect balance of low density and high strength when alloyed with other metals.

As a trusted UK manufacturer of high-purity metals, Less Common Metals (LCM) is perfectly positioned to support the advanced alloying industry. Located in Ellesmere Port, UK, we provide the high-grade Magnesium that aerospace, automotive, and metallurgical sectors rely on to build lighter, faster, and more efficient technology.

Technical Details

CompositionMagnesium 99.9%
Common metallic impuritiesTrace metals basis
Physical DescriptionShiny grey solid in appearance
AnalyticsICP-OES
Certificate of analysisAvailable upon request
PackagingPacked in sealed polythene bags and supplied in securely sealed metal drums, resistant to the impregnation of water

What is Magnesium?

Magnesium is a shiny, silvery-white alkaline earth metal. In nature, it’s highly abundant and most commonly extracted through the electrolysis of magnesium salts found in seawater and brine. While bulk Magnesium is stable, in its powdered or thin-ribbon form, free metal Magnesium is famous for igniting and burning with a characteristic, brilliant-white light. A property that makes it highly reactive and useful in pyrotechnics and chemical synthesis.

What is Magnesium used for?

Magnesium’s primary industrial value lies in its ability to transform other metals, though its chemical compounds are equally vital:

  • Aluminium-Magnesium Alloys: This is the single largest use of Magnesium globally. When added to Aluminium, it creates an alloy that is highly prized for its exceptional combination of lightness, strength, and corrosion resistance. These alloys are heavily utilised in aerospace engineering and automotive manufacturing, particularly in the structural components of electric vehicles. 
  • Die Casting: Because it is incredibly light and easy to cast, Magnesium is widely used in the manufacturing of premium consumer electronics, such as the durable, lightweight casings for laptops, cameras and power tools. 
  • Metallurgical Processes: Magnesium is a highly effective reducing agent. It is used to remove sulfur during the production of iron and steel, and it is a critical chemical reagent used in the purification of other vital metals like Titanium, Zirconium and Hafnium. 
  • Pharmaceuticals & Compounds: Beyond metallurgy, Magnesium compounds are incredibly common in daily life. Magnesium Hydroxide (MgHO2) and Magnesium Sulfate (MgSO4) are widely used medicinally as antacids (such as milk of magnesia) and laxatives.

Magnesium Industry Insight

The Lightweighting Imperative

As the automotive industry shifts entirely toward electric vehicles, “lightweighting” has become the primary strategy to offset the massive weight of lithium-ion batteries. Magnesium is at the forefront of this transition. By substituting heavier steel and pure aluminium parts with advanced Aluminium-Magnesium alloys, manufacturers can drastically increase battery range and overall vehicle efficiency, making Magnesium a highly strategic metal for the future of transport.

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