The material: 'DEF STAN 02-834 / NES 834 Bronze' you were looking for has been superseded by the one below.

DEF STAN 02-834 / NES 834 Bronze

Want to keep this datasheet? Save it now in your required format


This aluminium silicon bronze has similar attributes to the other aluminium bronzes, with a 2% silicon addition to enhance the material strength, corrosion resistance and impact strength whilst also improving the alloy machinability. As an MoD (Navy) specification, this material is subject to special requirements including impact properties and a controlled low magnetic permeability level of <1.05. It shows the following features and properties:

  • High strength and toughness
  • Excellent corrosion resistance
  • High impact strength
  • Excellent wear resistance
  • Very low magnetic permeability
  • Good machinability
  • Excellent cryogenic properties
  • Equivalent Materials

    This material data has been provided by Matmatch.

    "Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
    All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
    Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

    Ashby charts





    23.0 °C

    7.8 g/cm³

    Show Material materials with Density of 7.8 g/cm³



    Charpy impact energy, V-notch

    23.0 °C

    33 J

    Show Material materials with Charpy impact energy, V-notch of 33 J


    23.0 °C

    9 - 20 %

    Show Material materials with Elongation of 9 - 20 %

    Tensile strength

    23.0 °C

    515 - 620 MPa

    Show Material materials with Tensile strength of 515 - 620 MPa

    Yield strength Rp0.2

    23.0 °C

    220 - 310 MPa

    Show Material materials with Yield strength Rp0.2 of 220 - 310 MPa



    Coefficient of thermal expansion

    23.0 °C

    1.8E-5 1/K

    Show Material materials with Coefficient of thermal expansion of 1.8E-5 1/K

    for 0-300°C

    Melting point

    980 - 1010 °C

    Show Material materials with Melting point of 980 - 1010 °C

    Thermal conductivity

    23.0 °C

    45 W/(m·K)

    Show Material materials with Thermal conductivity of 45 W/(m·K)



    Electrical conductivity

    23.0 °C

    4.06E+6 - 5.22E+6 S/m

    Show Material materials with Electrical conductivity of 4.06E+6 - 5.22E+6 S/m

    Specific Electrical conductivity

    7 - 8 % IACS

    Show Material materials with Specific Electrical conductivity of 7 - 8 % IACS



    Relative magnetic permeability

    23.0 °C

    1 [-]

    Show Material materials with Relative magnetic permeability of 1 [-]

    Chemical properties



    6 - 6.4 %

    Show Material materials with Aluminium of 6 - 6.4 %




    0.5 - 0.7 %

    Show Material materials with Iron of 0.5 - 0.7 %


    0.5 %

    Show Material materials with Manganese of 0.5 %



    2 - 2.4 %

    Show Material materials with Silicon of 2 - 2.4 %

    Technological properties

    Application areas

    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

    Corrosion properties

    Excellent corrosion resistance

    General machinability

    Good machinability