About Smiths

We are a world-class supplier of engineering raw materials. Our objective is to provide all our customers, from the small machine shop to the large multi-national corporation, a supply path that continuously delivers the highest levels of service, quality and value.

2099 Aluminium Lithium Alloy

Aluminium Lithium

2099 Aluminium Lithium Alloy

2099 is an aluminium lithium alloy. The addition of lithium increases the strength modulus of the aluminium alloy while lowering its density. Extrusions are available in two tempers from 0.050 to 3.00 inch (1.2 to 76mm thicknesses).

Alloy 2099-T83

High strength and excellent corrosion resistance with moderate fracture toughness

Alloy 2099-T8E67

Lower strength but very high fracture toughness and excellent fatigue crack growth resistance.


Alloy 2099 extrusions have been available since the mid-2000s and are specified for use on many commercial aircraft and helicopter programs.


2099 aluminium lithium alloy is a low-density material with high stiffness. With superior damage tolerance and excellent corrosion resistance, the alloy offers excellent weldability.

Typical Applications

Commercial applications for this engineering material include:

  • High strength applications
  • Aerospace
  • Statically and dynamically loaded fuselage structures
  • Lower wing stringers
  • Stiffness dominated designs

We stock 2099 in flats, round bar, plate, rectangular tube and square bar.

Technical Assistance

Our knowledgeable staff and resident metallurgists will be pleased to assist you further on any technical topic. Smiths Metal Centres Limited also boasts an in-house UKAS Accredited Testing Laboratory which is unique within the multi-metal and plastic stockholding sector. We believe this underlines our total commitment to quality and our ethos of being the complete service provider.

Additional Info

A technical datasheet for 2099 is available in PDF file format. To view and download, please click here.

We offer in-house processing options - for more information, please refer to our processing services.

Read our corporate brochure by clicking here.

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