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.


Aerospace Aluminium Tube

L63 Aerospace Aluminium Tube

L63 is a high-strength, aerospace aluminium tubular product which retains its strength after heat treatment.

Heat Treated Aluminium

The product is alloyed with 4-5% copper and supplied in the fully heat-treated condition (solution heat-treated & artificially aged). L63 is used widely in the aerospace and defence sector in the manufacture of high strength components. We stock L63 aluminium alloy tube in the T6 temper in pipe/tube form. The material offers improved machinability.


L63 aluminium tubes offer good strength after heat treatment and can be easily plated. The alloy can also be hard anodised.

Typical Applications

Commercial applications for this engineering material include:

  • Aerospace fittings
  • Military vehicles
  • Aircraft structures and truck frames
  • High strength structural components
  • Structural applications

We stock L63 in round tube, rectangular tube and square tube.

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 L63 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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