409 Stainless Steel Plate

409 stainless steel plate is a general purpose stainless steel product and Kloeckner Metals proudly supplies it nationwide throughout our network of 40+ branches.

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Typical Standards

Grade Sizes Routinely Stocked
Thickness WidthLength
409Inquire for sizes

General Info About 409

409 stainless steel plate is a general purpose ferritic stainless steel that is mainly used for automotive exhaust systems. It is a chromium titanium stabilized stainless steel that protects against oxidation at elevated temperatures and atmospheric conditions.

More Details About 409

  • Advantages/Disadvantages

    This stainless steel grade demonstrates mechanical properties that offer key advantages in the automotive and agriculture industries. This includes superior protection against exhaust gas as well as atmospheric corrosion at elevated temperatures. These mechanical properties outweigh this stainless steel’s appearance, however. It is not recommended for decorative applications.

  • Industries

    The automotive and agriculture industries are the most common industries for this stainless steel grade.

  • Applications

    Applications that require oxidation resistance at elevated temperatures and medium strength are best for this stainless steel grade. It is primarily purposed in automotive exhaust systems for things like tailpipes, mufflers, and converters. It is also found in non-automotive exhaust systems, heat exchangers, silencers, agricultural spreaders, and furnace components.

  • Machining

    It has excellent machinability.

  • Welding

    It is weldable.

  • Heat Treatment

    It is not heat treatable.

Chemical Properties

0.08% max1.00% max0.045%0.045% max1.00% max10.5 - 11.75%0.05%0.48 - 0.75%

Mechanical Properties

Mechanical Properties
Tensile Strength, Ultimate380 MPa55 ksi
Tensile Strength, Yield207 MPa30 ksi
Elongation at Break (in 2")20%20%
Rockwell HardnessB95B95

Frequently Asked Questions

  • Is this stainless steel grade magnetic?


    Yes. Ferritic stainless steels are magnetic.

  • What is the melting range for this stainless steel grade?


    409 stainless steel melts between 2500°F and 2590°F.

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