439 Stainless Steel Sheet

439 stainless steel sheet is a ferritic stainless steel product that Kloeckner Metals proudly supplies nationwide throughout our network of 40+ branches.

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Typical Standards

GradeSizes Routinely Stocked
ThicknessWidthLength
439Inquire for sizes

General Info About 439

439 stainless steel sheet is a ferritic stainless steel that is titanium stabilized. It shows excellent resistance in fresh water and boiling acids. It is a common choice for automotive exhaust systems, heat exchangers, kitchen equipment, and architectural structures.

More Details About 439

  • Advantages/Disadvantages

    This stainless steel grade provides excellent protection against fresh water and boiling acids at relatively high temperatures. It can resist both oxidizing environments and stress corrosion cracking. Its titanium stabilizer leads to improved welding capability and it can be work hardened to increase tensile strength. One of the disadvantages of this stainless steel grade is that it is not heat treatable.

  • Industries

    439 stainless steel sheet is seen in the automotive, architecture, food service, and appliance industries.

  • Applications

    Tubular manifolds and other automotive exhaust system components, heat exchangers, kitchen equipment and appliances are some common applications for this stainless steel grade.

  • Machining

    It has good machinability.

  • Welding

    It is weldable.

  • Heat Treatment

    No, this stainless steel grade cannot be hardened by heat treatment.

Chemical Properties

CMnPSSiCrNiTi
0.03% max1.00% max0.045%0.045% max0.75% max17 - 19%0.50%0.50% max

Mechanical Properties

Mechanical Properties
MetricImperial
Tensile Strength, Ultimate482 MPa70 ksi
Tensile Strength, Yield330 MPa48 ksi
Elongation at Break (in 2")32%32%
Rockwell HardnessB74 - 78B74 - 78

Frequently Asked Questions

  • What is a stabilized ferritic steel?

    ANSWER:

    Stabilized ferritic stainless steels contain higher chromium content than martensitic steels and contain small amounts of ferrite stabilizers (i.e. titanium) which preference the ferrite phase over the austenite phase. This makes them more resistant to chloride cracking.

  • What is the melting point of 439 stainless steel?

    ANSWER:

    It melts at 2741°F (1505°C).

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