2099 Aluminium Lithium
Low density and high stiffness
For high-strength applications.
Introducing 2099 Aluminium-Lithium alloy - a product developed for use in motorsport, aerospace and high-strength applications requiring low density, high stiffness, superior damage tolerance & excellent corrosion resistance. Lithium additions increase the strength and modulus of Al alloys while lowering their density. Alloy 2099 extrusions are available in various temper conditions including T83, T86 , T852 & T8. Other tempers are available on request. Alloy 2099-T83 offers strength and excellent corrosion resistance with moderate fracture toughness.
Toughness & Fatigue:
Fatigue crack growth resistance and S/N fatigue performance also show improvement vs 2024-T3511, a standard product for applications considered fatigue critical. The alloy shows significant improvement when compared to 2219 in elevated temperature.
Corrosion Resistance:
The corrosion resistance of Alloy 2099 is much better than 7075-T6511 and 2024-T3511 with both the T8E67 and T83 tempers receiving EA (mild exfoliation) or better exfoliation ratings compared to the conventional alloys ED (very severe exfoliation). The stress-corrosion cracking performance is also much improved.
Suitability:
Alloy 2099 extrusions can replace 2xxx, 6xxx, and 7xxx, aluminium alloys in various applications. Examples include engineering areas where stiffness or statically and dynamically load performance are critical.
About SHP:
Smiths High Performance is a leading stockholder and supplier of high-performance engineering materials. We are material supply chain partners supporting high-technology motorsport market sectors, including Formula 1 and MotoGP.
- For high strength applications
- Improved fatigue crack growth resistance
- High stiffness
- Excellent corrosion resistance
- Stiffness dominated designs
- Statically and dynamically loaded structures
- Floor structures
- Motorsport components




