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Grade 310 Stainless Steel

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1.4841 (X15CrNiSi25-21) is an austenitic heat-resisting stainless steel. It is noted for excellent resistance to scaling in continuous service up to 1150°C, and in intermittent heating/cooling conditions up to 1095°C. This grade is highly resistant to oxidising acids and most common corrosive agents, and in marine conditions it shows little evidence of chloride stress corrosion cracking, outperforming lower alloy grades such as 304 and 316. In particular it has good resistance to hot corrosion in many environments including molten salts. It shows the following features and properties:

  • Oxidation resistance to 1150°C
  • Excellent corrosion resistance
  • High strength
  • Strength and toughness at sub-zero temperatures
  • Related Standards

    Equivalent Materials

    This material data has been provided by Matmatch.

    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

    40 %

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    Tensile strength

    23.0 °C

    510 MPa

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    Yield strength

    23.0 °C

    205 MPa

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    Chemical properties



    25 %

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    20 %

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    Technological properties

    Application areas

    Aerospace: Aircraft and jet engine components;Chemical processing: Chemical plant and equipment, fasteners for elevated temperature work, mufflers, heat exchangers and components for high temperature sulphur-bearing environments;Other: Oven linings, boiler baffles, kilns, lead pots, radiant tubes, annealing covers, burners, combustion tubes, refractory anchor bolts, fire box sheets, furnace components and other high temperature containers

    Corrosion properties

    Excellent corrosion resistance