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BS S140 Aerospace Steel BarBS S140

Aerospace Steel Bar

BS S140 aerospace steel bar is a 2½% Nickel-Chromium-Molybdenum steel alloy with a tensile strength(Rm) of 1080-1280 N/mm².

The alloy is supplied as a bright steel product and offers high tensile and yield stress. With good notch tougness and creep resistance, the alloy can be used in elevated temperature service. It is classed as an alloy structural steel product and is used in the fabrication of parts in the aerospace, motorsport, oil & gas and automotive sectors among others, although it finds many uses in general engineering.

Key Features:

BS S140 aerospace steel bar is supplied as bright steel and has varied general engineering use. It is a high tensile and high yield steel product with 2½% nickel-chromium-moylbdenum..

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 S140 Aerospace Steel Bar Datasheet

Typical Applications:

  • Fasteners
  • Mechanical parts
  • Connecting rods
  • Shafts and gears
  • Boiler support rods
  • Bolts and nuts

We offer BS S140 aerospace steel in bar.


We offer processing services across the UK in our dedicated service centres. With thirty power saws available across the Smiths Group, we can efficiently cut your material to size regardless of quanity.

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?

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on 0845 527 3331 or click here to contact us.