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  • Inconel 825 wire mesh

  • Detailed Description
  • Inconel 825 is a Nickel-Iron-Chromium alloy with additions of Molybdenum and Copper. It has excellent resistance to both reducing and oxidising acids, to stress-corrosion cracking and to localised pitting and crevice corrosion. It is also especially resistant to sulphuric and phosphoric acids.

    Chemical Composition of Inconel 825

    The compositional range for Inconel 825 is provided in the table below.

    Element

    Content

    Ni

    38 - 46 %

    Fe

    22 % min

    Cr

    19.5 - 23.5%

    Mo

    2.5 - 3.5 %

    Cu

    1.5 3 %

    Ti

    0.6 - 1.2 %

    Typical Properties of Inconel 825

    Typical properties of Inconel 825 are covered in the following table.

    Property

    Metric

    Imperial

    Density

    8.14 g/cm3

    0.294 lb/in3

    Melting point

    1400°C

    2550°F

    Co-Efficient of Expansion

    14.0 µm/m.°C
    (20-100 °C)

    7.8x10-6 in/in.°F
    (70-212 °F)

    Modulus of rigidity

    75.9 kN/mm2

    11009 ksi

    Modulus of elasticity

    196 kN/mm2

    28428 ksi

    Properties of Supplied Materials and Heat Treated Materials

    Condition of Supply

    Heat Treatment (After Forming)

    Spring Temper/Spring Temper

    Stress relieve at 450 - 470°C (840 - 880°F) for 30-60 minutes and air cool.

    Condition

    Approx Tensile Strength

    Approx Service Temp.

    Annealed

    600 - 800 N/mm2

    87 -116 ksi

    -100° to +250°C

    -145° to +480°F

    Spring Temper

    800 - 1000 N/mm2

    116 - 159 ksi

    -100° to +250°C

    -145° to +480°F

    Relevant Standards

    Inconel 825 is covered by the following standards:

    • BS 3076 NA 16
    • ASTM B425

    Equivalent Materials

    Inconel 825 is the tradename of Special Metals Group of Companies and equivalent to:

    • W.NR 2.4858
    • UNS N08825
    • AWS 022

    Applications of Inconel 825

    Inconel 825 typically finds application in:

    • Chemical Processing
    • Nuclear Fuel Reprocessing
    • Acid Production
    • Pickling Equipment
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