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BS S99 Aerospace Steel BarBS S99

Aerospace Steel Bar

BS S99 aerospace steel bar is a nickel-chromium-molybdenum steel and is used for general aerospace use.

The alloy benefits from high tensile strength and good notch toughness and is used as a structural alloy in applications where surface pressure is apparent. The material is ususally supplied in annealed or bright annealed condition. Applications for the alloy are widespread and is used as a general alloy in the aerospace sector. Smiths supplies BS S99 in bar which can be processed to your original size requirements.

Key Features:

BS S99 aerospace steel bar higher yield and tensile strength and is supplied in the annealed and bright annealed condition. With a wide range of applications, the alloy promotes good toughness and creep resistance.

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 BS S99 Aerospace Steel Bar Datasheet

Typical Applications:

  • Connecting rods
  • Sockets
  • Spindles
  • Hydraulic shafts
  • Torsion bars
  • Axles

We offer BS S99 aerospace steel in bar.


With more than thirty power saws within the Smiths group including a fully automated magazine feed CNC rod blanking line, we can process your material to your precise requirements. We can also economically cut from one off blanks to the largest production run for immediate or just in time deliveries.

Pick a Product

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

Have a question or need a detailed quote?

Our staff are ready to take your call. For all supply and technical enquiries call us today
on 0845 527 3331 or click here to contact us.