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.

7068 Aluminium Alloy

Commercial Aluminium

7068 Commercial Aluminium Alloy

7068 alloy provides the highest mechanical strength of all aluminium alloys and matching that of certain steels.

High-Performance Aluminium

The alloy combines a yield strength of up to 700 MPa (up to over 30% greater than that of 7075 alloy) and good ductility with corrosion resistance similar to 7075 and other features beneficial to high-performance component/equipment designers. The product went through development in the 1990s to serve as a higher strength alternative to 7075 aluminium, particularly in ordnance applications.

Attractive Mechanical Properties

The mechanical properties are desirable, including elevated temperature retention, which is greater than in 7075). The result is the widespread specification of the alloy to markedly reduce the weight/cross-section or significantly increase the strength of critical components in diverse market sectors.


7068 alloy is a 7000 series aluminium-zinc alloy registered with the US Aluminium Association and produced to AMS 4331 (chemical composition and mechanical properties) and AMS 2772 (heat treatment). 7068 alloy ‘A’ and ‘B’ tensile data and fatigue properties benefit from ratification for inclusion in MIL Handbook 5 / MMPDS. The standard supply temper condition is T6511. For applications requiring enhanced resistance to stress corrosion cracking, the material in the T76511 delivery condition is available to order.

Typical Applications

Commercial applications for this engineering material include:

  • Connecting rods
  • Shock absorbers
  • Fuel pumps
  • Rocker arms
  • Bearing caps
  • Prosthetics
  • Chain tensioners

We stock 7068 in flats, round bar, plate 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 7068 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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