What is 2.0855?

2.0855 is the Werkstoff number for a copper nickel alloy most commonly known as Hidurel 5. The Werkstoff designation was developed by the German standards body DIN, with the term Werkstoff translating approximately to ‘material’.

Hidurel^® 5 is a high strength copper nickel alloy, with a significant addition of silicon, developed by Langley Alloys for bearing applications. It possesses high electrical and thermal conductivity with very good notch ductility and high mechanical strength. Despite its high strength, the alloy is resistant to hydrogen embrittlement. Resistance to corrosion under marine and industrial conditions is excellent and the alloy has good anti-frictional and bearing properties. With a magnetic permeability of less than 1.001, the alloy is essentially non-magnetic.

Hidurel 5 meets the mechanical and chemical properties of DTD 498, BS 4577 Type A3/2 and Rolls Royce MSRR 8501 to which Langley Alloys can supply. It can therefore be specified in confidence for high integrity components. Cold worked material to DTD 504 can also be supplied to order. It also fits the caption of UNS C64700.

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