About Smiths

We are a world-class supplier of engineering raw materials. Our objective is to provide all our customers, from the small machine shop to the large multi-national corporation, a supply path that continuously delivers the highest levels of service, quality and value.

UNS C46400

Brass Alloy

UNS C46400 Brass Alloy

C46400 is an ideal product for use in marine and offshore applications.


C46400 is a lead-free naval brass designed for primary forming into wrought products. C46400 is the UNS designation while CW712R is the EN designation. Offering good strength and rigidity, the addition of tin gives the alloy improved corrosion resistance and resistance to dezincification. Therefore, C46400 is far less susceptible to the effects of saltwater corrosion. With other notable benefits such as wear, fatigue and galling resistance, the alloy also provides good resistance to stress corrosion cracking (SCC).


C46400 benefits from good overall strength.

Typical Applications

Commercial applications for this engineering material include:

  • Naval hardware
  • Propeller shafts
  • Missile components
  • Plumbing hardware
  • Pressure vessels

We stock UNS C46400 in round bar, plate, sheet and hollow bar.

Technical Assistance

Our knowledgeable staff and resident metallurgists will be pleased to assist you further on any technical topic. Smiths Metal Centres Limited also boasts an in-house UKAS Accredited Testing Laboratory which is unique within the multi-metal and plastic stockholding sector. We believe this underlines our total commitment to quality and our ethos of being the complete service provider.

Additional Info

A technical datasheet for UNS C46400 is available in PDF file format. To view and download, please click here.

We offer in-house processing options - for more information, please refer to our processing services.

Read our corporate brochure by clicking here.

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