Trademark Alloys


SILVERSPEED-XL is a copper alloy with additions of zinc and nickel to give an attractive soft silvery colour not as brash as stainless steel. It is a truly superlative free-machining alloy with a machinability rating almost the same as free cutting brass. It is highly recommended for the production of intricate components by complex machining operations.

This grade is stocked exclusively by Columbia Metals and has the same application and performance characteristics as NS 101. However, the invaluable increase of around 20% in machinability over NS101 can provide clean, burr free, close tolerance, high surface quality components at maximum production speeds and prolonged tool life.

SILVERSPEED-XL’s combination of strength, high modulus spring properties, corrosion and oxidation resistance, anti-galling properties, excellent cryogenic performance and numerous other attributes combined with ease of forming, machining, plating and joining make it an excellent choice for many engineering applications.

Nominal Composition of SILVERSPEED-XL

Cu 49.0%, Ni 7.0%, Pb 3.0%, Mn 2.0%, Zn rem

Key Features of SILVERSPEED-XL

  • Very high resistance to corrosion and tarnishing
  • Excellent machinability
  • High strength
  • Attractive colour

Applications of SILVERSPEED-XL

General | Gears, pinions, clock and watch parts; screws and fasteners; keys, lock parts, decorative and architectural metalwork; camera parts, electrical and electronic pins and connectors; medical, industrial and scientific instrument components

Columbia Metals – a leading supplier of SILVERSPEED-XL

With decades of experience and a huge range of stock, Columbia Metals is an industry leader in the supply of SILVERSPEED-XL and other high quality specialist engineering alloys.

To buy or learn more about SILVERSPEED-XL contact us now, or fill in the enquiry form on the right hand side and we will be in touch shortly.

  Related Specifications Mechanical Properties
Alloy Name BS UNS BS EN Others Ultimate Tensile Strength N/mm² Minimum Yield Strength N/mm² Elongation % Hardness HB  
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