Magnesium Alloys
Magnesium is the lightest structural metal used in engineering, characterized by its silver-white appearance and exceptional strength-to-weight ratio.
Overview
Magnesium is approximately 33% lighter than aluminum and 75% lighter than steel, making it a critical material for automotive lightweighting and improving fuel economy or EV range. In the automotive industry, it is primarily utilized as an alloy (most commonly with aluminum and zinc) to improve castability and mechanical performance. Its high damping capacity is highly valued for reducing noise, vibration, and harshness (NVH) in vehicle cabins. While predominantly used in high-pressure die casting, advancements in alloy chemistry are expanding its use into structural and powertrain components.
Automotive Applications
Similar Materials
Magnesium Alloy AZ31
Magnesium Alloy
AZ31 is a widely-used wrought magnesium alloy (approx. 3% aluminium, 1% zinc) valued in automotive engineering for its exceptional strength-to-weight ratio.
Aluminium
Aluminium Alloy
Lightweight metallic element used extensively in automotive construction
Ferrosilicon
Ferroalloy
An alloy of iron and silicon used primarily as a deoxidizer and alloying element in the production of steel and cast iron.
Magnesium Alloy WE43
Rare-Earth Magnesium Alloy
Rare-earth magnesium alloy WE43 for wrought motorsport and aerospace parts, distinct from AZ31 and generic magnesium alloys.
Properties
Category
Type
Magnesium Alloy
Available Colors
Available Forms
Key Properties
- Ultra-lightweight
- High strength-to-weight ratio
- Excellent damping capacity
- High thermal conductivity
- Superior die-castability
- Good electromagnetic shielding
Technical Specifications
Density
1.74 - 1.81 g/cm³
Tensile Strength
160 - 310 MPa
Temperature Resistance
-40°C to 150°C
Sustainability
Sustainability Rating
Magnesium is 100% recyclable, and secondary production requires only 5% of the energy used in primary extraction. However, primary production (especially the Pidgeon process) is highly energy-intensive and carbon-heavy.