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.

BSB23 (DTD 197)

Aluminium Bronze Alloy

B23 Aluminium Bronze

BS B23 is mainly used in aerospace engineering but is also used in the marine and chemical sectors due to its excellent resistance to corrosion and erosion in seawater as well as other chloride containing environments. It is another wrought version of the 10/5/5 aluminium bronze and is used when the commercial CA104 is deemed not fit for purpose. BS B23 is also known for its high strength and excellent shock and wear resistance whilst being able to retain its properties at cryogenic temperatures.


BS B23 bronze alloy offers excellent corrosion and erosion resistance lending itself well to industries such as Oil & Gas, petrochemical and marine. With good resistance to shock loading, the alloy has good strength and toughness, and high wear and abrasion resistance. BS B23 also has excellent property retention in cryogenic atmospheres.

Typical Applications

Commercial applications for this engineering material include:

  • Heavy-duty bushes & bearings
  • High strength fasteners
  • Pump & valve components
  • Engine components
  • Thrust washers
  • Worm gears
  • Marine hardware
  • Aerospace components

We stock B23 in flats, round bar, round tube, hollow bar, square bar and hexagon 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 B23 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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