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 Bar

S106 Aerospace Steel Bar

BS S106 aerospace steel bar is a 3% chrome-molybdenum nitriding steel which develops high hardness after heat treatment.

Hardened Bright Bar

It is generally supplied as bright bar in the hardened, tempered and stress relieved condition. The alloy offers excellent wear and abrasion resistance combined with high fatigue strength. It can be used in elevated temperature applications. Classed as a nitriding steel, BS S106 is used in applications including the aerospace and motorsport sectors.


BS S106 aerospace steel bar includes 3% chrome-molybdenum content and offers excellent wear and abrasion resistance. The alloy is a nitriding steel which is supplied as bright bar in the hardened, tempered and stress relieved condition.

Typical Applications

Commercial applications for this engineering material include:

  • Aerospace components
  • Motorsport components
  • Automotive components
  • Shafts and spindles
  • Gear wheels
  • Extruders

We stock S106 in round 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 S106 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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