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2099 Aluminium Lithium2099 Aluminium Lithium

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 2000's and have been specified for use on many commercial aircraft and helicopter programs.

Key Features:

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.

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.

Download 2099 Aluminium Lithium Datasheet

Typical Applications:

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

We offer 2099 Aluminium Lithium Alloy in extrusions.


With thirty power saws available across the Smiths Group, we can efficiently cut your material to size regardless of quantity. This includes a fully automated magazine feed CNC rod blanking line.

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To find out more about Smiths Metal Centres extensive range of high quality aluminium lithium alloy products, click on one of our products on the side menu of this web page.

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