DEF STAN 02-834, or NES834, is an aluminium bronze with a 2% silicon addition to enhance strength, corrosion resistance and impact strength compared with other grades of aluminium bronze. The silicon content also improves the machinability rating.
The latest Defence Standard for this material is DEF STAN 02-879 Annex D, a specification recognised for its controlled low magnetic permeability level of <1.005. Impact strength is maintained down to cryogenic temperatures.
Related Specifications of DEF STAN 02-834
- DEF STAN 02-879 Annex D
- NES 834
- CuAl6Si2Fe (EU)
Nominal Composition of DEF STAN 02-834
Cu rem, Al 6.0%, Fe 0.6%, Si 2.2%
Mechanical Properties of DEF STAN 02-834
|Ultimate Tensile Strength (N/mm²)||Proof Stress (N/mm²)||Elongation (%)||Hardness (HB)|
Key Features of DEF STAN 02-834
- High strength and toughness
- Excellent corrosion resistance
- High impact strength
- Excellent wear resistance
- Very low magnetic permeability
- Good machinability
- Excellent cryogenic properties
Applications of DEF STAN 02-834
Offshore & marine | High strength and non-magnetic fasteners and components
Other | Fasteners, safety tooling, valve components, non-magnetic parts, marine hardware, gears, bearings and bushes and instrumentation components
Columbia Metals – a leading supplier of DEF STAN 02-834
With decades of experience and a huge range of stock, Columbia Metals is an industry leader in the supply of DEF STAN 02-834 and other high quality specialist engineering alloys.
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