409 Stainless Steel Sheet

409 stainless steel sheet 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

GradeSizes Routinely Stocked
ThicknessWidthLength
409Inquire for sizes

General Info About 409

409 stainless steel sheet is a general purpose ferritic stainless steel. Primarily purposed for automotive exhaust systems, this chromium titanium stabilized stainless steel protects against oxidation.

More Details About 409

  • Advantages/Disadvantages

    This stainless steel grade provides excellent protection against exhaust gas and atmospheric corrosion at elevated temperatures. These mechanical properties offer critical advantages in the automotive and agriculture industries. One disadvantage of this stainless steel sheet is its exterior finishing characteristics – it is not recommended for decorative applications or where appearance is prioritized (like exterior auto body paneling or appliance surfaces).

  • Industries

    409 stainless steel sheet is most commonly used in the automotive and agriculture industries.

  • Applications

    In addition to automotive exhaust systems (tailpipes, mufflers, converters), this stainless steel grade is frequently used in non-automotive exhaust systems, heat exchangers, silencers, power generation, fuel filters, agricultural spreaders, furnace components, and transformer casing.

  • Machining

    It has excellent machinability.

  • Welding

    It is weldable.

  • Heat Treatment

    It is not heat treatable.

Chemical Properties

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

Mechanical Properties

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

Frequently Asked Questions

  • What is ferritic stainless steel?

    ANSWER:

    Ferritic stainless steel is one of the stainless steel families along with martensitic, duplex, and austenitic which describe the microstructure of the steel. They contain higher chromium content than martensitic steels and contain small amounts of ferrite stabilizers (i.e. titanium). They are magnetic.

  • What products are available in 409 stainless?

    ANSWER:

    Kloeckner Metals supplies 409 stainless steel in sheet, plate, and tube.

  • What is the max Brinell hardness of this stainless steel grade?

    ANSWER:

    The max Brinell hardness number for 409 stainless is 207.

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