Key features:

Improved corrosion resistance; bolts, fittings etc. in marine use. Low lead content for use where environmental aspects may be a concern.

Full alloy description:

A.W. Fraser Alloy 464 is an standard American type naval brass conforming to the requirements of ASTM B21 alloy C46400.

464 has been developed, with the deliberate addition of tin, to give improved resistance to corrosion and dezincification, particularly in salt water, and moderate ductility.

The composition of A.W. Fraser alloy 464 is strict ly controlled as are the extrusion and finishing op erations to achieve a constant standard of quality, properties and structure. All extrusions are manufactured from continuous cast billet stock ensuring uniform dispersion of tin particles and freedom from porosity.

Alloy 464 is susceptible to dezincification under certain conditions and is classified a category III alloy.
Machinability Rating: 30
SAE Grade: 73 / J461 / J463

Comparable specifications:

BS2874 - CZ112; AS1567 - C46400; UNS C46400; AST M B21 - C46400, JIS 3250 C4641B

Download tech sheet:

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


  • C46400
  • CZ112*/113*/ 133 / -
  • CW719R / CuZn38Sn1
  • 3.0530 / -
  • C4641
  • C46400
* = 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 464
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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