409 Stainless Steel

If you desire a stainless steel whose mechanical properties highly outshine its physical appearance then 409 stainless steel is your perfect match. 409 Stainless is ideally used in scenarios where the need for oxidation or corrosion protection is wanted. As a titanium-stabilized ferritic stainless steel, 409 is most commonly used in automotive exhaust systems where the environment can be quite taxing on the lifetime of the steel.

Chemical Formula

Fe, <0.08% C, 10.5-11.75% Cr, <0.5% Ni, <1.0% Mn, <1.0% Si, <0.045% P, <0.03% S, 6x%C-0.75% Ti

Inventory

409 Stainless Steel Plate

Common Trade Names

409 Stainless, 409 Stainless Steel

Features

Although susceptible to rust formation, making this grade of stainless steel somewhat undesirable for decorative purposes, 409 is extremely resistant to various forms of gas corrosion.

It is suggested prior to welding, the steel is pre-heated to 150-260C and also suggested post-weld annealing at 760-815C.

Applications

409 is the perfect grade stainless steel for automotive applications where visual appeal is not a top priority. For this reason and for its durability to gas corrosion, 409 is most commonly used in truck exhaust systems, agricultural equipment, and heat and gas turbine exhaust silencers.

Available Stock Sizes

See specific product page for unique sizes. Here at Atlantic Stainless, no inquiry is too large or too small. Feel free to contact us today for a quote on any of your custom-size orders.

If you don’t see what you’re looking for just call one of our team members. No inquiry is too large or too small, we specialize in locating hard-to-find items. If you do see what you are looking, we would love to assist you and give you a quote today!

Common Surfaces

Stainless Steel Standards Comparison Table