Key features:

Excellent machinability, good hardness, strength and wear resistance. Not subject to dezincification and has reasonable resistance to seawater.


Full alloy description:

A. W. Fraser Alloy 660 is a general purpose leaded tin bronze bearing and bushing material conforming to the requirements of UNS C93200.

660 has excellent machining properties, good hardness, strength and wear resistance with excellent antifrictional qualities. The alloy is not subject to dezincification and has reasonable corrosion resistance to sea water and brine making it suitable for pump and valve components.

660 is suitable for bearings having medium loads and speeds with adequate lubrications.

The composition of A.W. Fraser alloy 660 is strictly controlled as are the casting conditions. Alloy 660 products are manufactured using the latest continuous and centrifugal casting technology.
Machinability Rating: 70
SAE Grade: 660

Comparable specifications:

AS1565 C93200; ASTM B505, B271 - C93200; SAE 660

Download tech sheet:

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

Specifications:

  • C93200
  • SAE660 / -
  • CC493K / CuSn7Zn4Pb7
  • 2.1090 (RG7) / CuSn7ZnPb*
  • U-EPbZ*
  • UNI 7013-72-7A
  • C93200
* = similar specification

Disclaimer

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 660
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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