Manganese
A hard, brittle metal essential for steel production and increasingly important in lithium-ion battery cathode chemistries for electric vehicles.
Overview
Manganese is one of the most widely used metals in automotive manufacturing, primarily as a critical alloying element in steel. Even small additions of manganese (typically 0.5–2%) significantly improve steel's hardness, strength, and wear resistance by acting as a deoxidiser and desulphuriser during steelmaking. High-manganese steels are used in safety-critical structural components including crash management systems, door intrusion beams, and B-pillars. Beyond steel, manganese is gaining significant strategic importance in EV batteries. Lithium Manganese Oxide (LMO) and NMC (Nickel Manganese Cobalt) battery chemistries use manganese as a cathode material, valued for its thermal stability and lower cost compared to cobalt. LMFP (Lithium Manganese Iron Phosphate) is emerging as a next-generation battery chemistry that leverages manganese for higher energy density. South Africa and Gabon hold the majority of the world's manganese reserves.
Automotive Applications
Similar Materials
Molybdenum
Transition Metal
A refractory transition metal used primarily as an alloying addition in HSLA, multiphase and press-hardenable steels, and as a catalyst precursor. EU critical raw material with major supply from Chile, China and the USA.
Vanadium
Transition Metal
A hard transition metal used chiefly as ferrovanadium in HSLA, dual-phase and tool steels. Strengthens automotive sheet and forgings; supply concentrated in China, Russia and South Africa.
Antimony
Metalloid
A lustrous, brittle grey metalloid primarily used as an alloying agent to harden lead and as a chemical synergist in flame retardants.
Ferrochrome
Ferroalloy
An essential ferroalloy composed of chromium and iron used primarily as an alloying agent in the production of stainless and heat-resistant steels.
Properties
Category
Type
Transition Metal
Available Colors
Available Forms
Key Properties
- Improves steel hardness and wear resistance
- Deoxidiser in steelmaking
- Thermal stability in battery cathodes
- Lower cost alternative to cobalt in batteries
- High melting point (1,246°C)
- Brittle in pure form
Technical Specifications
Density
7.43 g/cm³
Tensile Strength
496 MPa (pure manganese)
Temperature Resistance
Up to 1,246°C (melting point)
Sustainability
Sustainability Rating
Manganese is largely recovered through steel recycling. Battery-grade manganese recycling is still nascent but growing with EV battery end-of-life programmes. Mining operations, particularly in Africa, have raised environmental and community impact concerns. Manganese is not classified as a critical raw material in the same tier as cobalt or lithium but is increasingly monitored for supply chain resilience.