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.

Alloy 25 (UNS C17200)

Beryllium Copper Alloy

Alloy 25 Beryllium Copper

Alloy 25 is a high-performance copper-beryllium alloy used in applications requiring strength, fatigue resistance, nonmagnetic properties, conductivity, and corrosion resistance. Alloy 25, supplied with certified mechanical properties, is fully heat treated, and no additional treatment is required. Alloy 25 magnetic properties are unaffected by machining and surface abrasion.

Galling & Wear Resistance

Alloy 25 provides excellent galling resistance to itself and other alloys at high load conditions. Galling resistance, high hardness and low friction provide wear resistance in bearing and bushing applications under conditions of marginal lubrication.

Corrosion Resistance

Alloy 25’s corrosion resistance is similar to pure copper. It resists corrosion in seawater, most organic solutions, non-oxidizing acids, and dilute alkalis. Alloy 25 is not subject to hydrogen embrittlement, and it resists stress corrosion cracking in sulphide and chloride solutions. It meets the requirements of NACE MRO175. Alloy 25 is not recommended for use with ammonium hydroxide or strongly oxidizing acids.

Typical Applications

Commercial applications for this engineering material include:

  • Heavy duty bearings & bushes
  • Oil & Gas exploration
  • Aerospace
  • Automotive
  • Marine
  • Chemical Processing

We stock Alloy 25 in flats, round bar, plate and sheet

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 Alloy 25 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.

Interested in this product?
Why not get in touch?


Click Here