Description

1.4594 (X5CrNiMoCuNb14-5) is a precipitation hardened martensitic stainless steel used predominantly in the aerospace industry. It offers excellent strength and hardness combined with a good general corrosion resistance (similar to that of the 300 series stainless). It also offers excellent anti-galling properties and a good resistance to some mildly acidic conditions. However, 143D is subject to pitting corrosion in marine environments and crevice corrosion on prolonged immersion. It shows the following features and properties:


  • Excellent strength and hardness levels
  • Good general corrosion resistance
  • Equivalent Materials

    Properties

    Mechanical

    Elongation A

    15 % at 20 °C

    Tensile strength Rm

    1080 MPa at 20 °C

    Yield strength YS

    930 MPa at 20 °C

    Chemical properties

    Element

    Weight %

    Comment

    Fe

    -

    Balance

    Cr

    14 %

    Ni

    5.4 %

    Cu

    1.6 %

    Mo

    1.6 %

    max.

    More

    Technological properties

    Application areas

    Aerospace: Gas turbine blades, undercarriage components and fasteners

    Corrosion properties

    Good general corrosion resistance

    This material data has been provided by Columbia Metals.

    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.