Key features:

Combines high strength with fair machinability and hot forgability.

Full alloy description:

A. W. Fraser Alloy 686 is a leaded manganese bronze combining high strength and excellent hot forging and corrosion resistant properties.

Used extensively for marine applications propeller shafts, valve bodies, spindles, nuts, bolts, gears and bearings. This alloy has good machinability due to the addition of lead.

The composition of A.W. Fraser alloy 686 is strictly controlled as are the extrusion and finishing operations to achieve a constant standard of quality, properties and structure.

All extrusions are manufactured from continuous cast billet stock ensuring uniform dispersion of lead particles and freedom from porosity.
Machinability Rating: 70
SAE Grade: n/a

Comparable specifications:

BS2874 – CZ114; AS 1567-686; AS 1568-686; DIN:176 72 –CuZn40Al1*

* 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...


  • C68600
  • CZ114/115 / -
  • CW716R* / CuZn38Mn1Al*
  • 2.0510*/2.0561* / CuZn37Al*/ CuZn40Al1*
  • CuZn39Mn1AlPbSi*
  • C68600
* = 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 686
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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