Key features:

Unleaded hard bronze with excellent wearing properties. Preferred for guides, bushings operating at very high loads at low speed, gears and worms.

Full alloy description:

A.W. Fraser Alloy 905 is a Tin Bronze or "G" Bronze conforming to the requirements of ASTM B505/B271 alloy C90500.

905 has good machining properties, medium hardness, good strength and good wear resistance.

This material has good corrosion resistance, especially to seawater, making it suitable for marine applications requiring a higher strength material.

Bearings manufactured from 905 require good reliable lubrication and a hard shaft, and are suitable for medium to heavy loadings at low speed.

The composition of A.W. Fraser alloy 905 is strictly controlled as are the casting conditions.

905 products are manufactured using the latest continuous and centrifugal casting technology.
Machinability Rating: 50
SAE Grade: 62

Comparable specifications:

BS1400 - G1*; AS1565 - C92610; SAE 62*; JIS (Japan) H5121 – CAC403C (BC3)*; DIN 1705 - CuSn10Zn*; ISO 1338 - CuSn10Zn2

* = similar, but not identical

Download tech sheet:

For a full alloy summary, including Chemical Composition and Mechanical Properties, please download our tech sheet in PDF format below...


  • C90500
  • G1* / CuSn10Zn2
  • - / CuSn10Zn2
  • 2.1086 (RG10) / CuSn10Zn*
  • CAC403C (BC3)
  • U-E12P* / U-E8Z2*
  • UNI 7013-72-6A*
  • C92610*
* = similar specification


The alloy information provided on this page is indicative and must not be taken as a substitute for the full specification from which it is drawn. In particular, the mechanical property requirements vary widely with product specification.

The information contained on this page is based on our present knowledge and is given in good faith as a precursor to discussing your specific requirements with us.

No liability will be accepted by AW Fraser in respect of any action taken by any third party in relying on the data on this page.
Enquire about Alloy 905
AW Fraser has the capability to modify alloys for improved performance.

To discuss your specific requirements, please contact our technical team on the telephone number below, or e-mail us via the enquiry form:
  • +64 3 341 0027
Alloy enquiry form
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Reasons to choose AW Fraser:

  • AW Fraser exports to all corners of the globe, maintaining a competitive edge in the global marketplace through a commitment to quality engineering and manufacturing.
  • AW Fraser maintains its own laboratory with the latest equipment and can supply reports for all production on request. Read more
  • AW Fraser is accredited to ISO 9001 and ISO 14001, delivering independently accredited quality. Read more
  • AW Fraser has received multiple Supplier Awards from a Fortune 500 company for machined components.

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