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 Steel Sheet

S511 Aerospace Steel Sheet

BS S511 is an unalloyed heat treatable carbon steel available in sheet and strip.

For Low Strength Components

The alloy is suitable for low strength components requiring significant drawing operations during manufacture. BS S511 requires protection from corrosion if it is to be exposed to the atmosphere and supplied with an annealed tensile strength (Rm) 280-400 N/mm². The alloy is delivered in the softened condition.


BS S511 aerospace sheet is easily welded and is supplied in the heat treated condition. The alloy offers improved tensile strength once annealed. The material is used in applications where significant drawing is required during the manufacturing process.

Typical Applications

Commercial applications for this engineering material include:

  • Machinery components
  • Flanges, spacers, bushes
  • Low stressed applications
  • General aerospace use
  • General engineering applications

We stock S511 in sheet.

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 S511 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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