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