DTD498 / BSB25

Marine & Defence

DTD498 / BSB25

DTD498 is a copper-nickel-silicon alloy which demonstrates a combination of high mechanical strength and notch ductility whilst still possessing superior electrical and thermal conductivities.

Its other major features are exceptionally good bearing properties, very low magnetic permeability and resistance to corrosion and hydrogen embrittlement.

Related Specifications of DTD498

  • BS B25
  • BS 2B 25
  • BS 3B 25
  • C18000
  • C64700
  • CW111C
  • CuNi2Si

Nominal Composition of DTD498

Cu rem, Ni 2.5%, Si 0.6%

Mechanical Properties of DTD498

Ultimate Tensile Strength (N/mm²) Proof Stress (N/mm²) Elongation (%) Hardness (HB)
580 430 18 159-207HV

Key Features of DTD498

  • Good electrical and thermal conductivity
  • Low magnetic permeability
  • Resistance to corrosion and hydrogen embrittlement

Applications of DTD498

Offshore & marine | Non-magnetic naval architecture and high strength fasteners (non-magnetic and cryogenic)

Aerospace | Bearing cages, aircraft undercarriage components, fasteners and bearings

Other | Fasteners, engine valve guides and seats, pump and valve components, high performance bearings, bushes, gears safety tools, mechanical seals, electrical contacts, resistance welding electrodes and brake pads

Columbia Metals – a leading supplier of DTD498

With decades of experience and a huge range of stock, Columbia Metals is an industry leader in the supply of DTD498 and other high quality specialist engineering alloys.

To buy or learn more about DTD498 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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