A-286 (660B) Stainless Steel

View suppliers (37)
Want to keep this datasheet? Save it now in your required format


1.4980 (X6NiCrTiMoVB25-15-2) is special corrosion, oxidation and heat resistant, precipitation hardenable austenitic stainless steel. It is designed for long-term, high strength service up to 700°C. It is non-magnetic even after severe cold deformation. The alloy has good oxidation resistance in continuous service up to 800°C. It shows the following features and properties:

  • Very high corrosion resistance
  • Good oxidation resistance up to 800°C
  • Non-magnetic even after severe cold deformation
  • High strengths that are well retained up to 700°C
  • Good machinability
  • Related Standards

    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

    15 %

    Show Material materials with Elongation of 15 %

    Hardness, Brinell

    23.0 °C

    248 [-]

    Show Material materials with Hardness, Brinell of 248 [-]


    Tensile strength

    23.0 °C

    895 MPa

    Show Material materials with Tensile strength of 895 MPa

    Yield strength

    23.0 °C

    585 MPa

    Show Material materials with Yield strength of 585 MPa

    Chemical properties



    15 %

    Show Material materials with Chromium of 15 %


    56 %

    Show Material materials with Iron of 56 %


    1.5 %

    Show Material materials with Molybdenum of 1.5 %


    25.5 %

    Show Material materials with Nickel of 25.5 %


    2.1 %

    Show Material materials with Titanium of 2.1 %

    Technological properties

    Application areas

    Offshore & marine: Fasteners, and critical pump/valve components;Aerospace: Turbine shafts, aero engine components and high performance fasteners;Power generation: Components for gas turbines, turbine discs, and turbine blades;Other: Springs, screws, bolts, thrust nozzles and transmission parts

    Corrosion properties

    Very high corrosion resistance

    General machinability

    It has good machinability and machines best in the precipitation-hardened condition when it has a machinability rating 45% that of AISI1212 free-cutting grade.