409 Stainless Steel

ASTM A240/480

Type 409 stainless steel is a ferritic stainless steel that has a good combination of heat resistance and corrosion resistance. Its titanium stabilized low nickel content provides for an economical metal resistant to corrosion and oxidation.

The process of creating stainless involves mining chromite from underground mines. The chromite is crushed to produce a chromite concentrate. The material is melted in an electric furnace with other raw materials (iron ore, manganese, nickel, etc.) use for the specific stainless type.

After melting the material is formed into slabs and sent to a hot rolling mill. The rolling mill, also known as a roughing mill, reduces the thickness of the steel and it is cooled by water. The material is then transferred to a cold rolling mill.

When the material arrives at the cold rolling mill it is covered in black scale and is sent through an annealing and pickling line to remove it.

To find out which of our locations process and stock 409 stainless steel download our line cards.

Stainless Steel Supplier Metal West

Metalwest Standard Sizes

12 gauge – 20 gauge
48″ wide

*Additional sizes & grades available upon request. Some products and services may vary by location.

Typical uses for Type 409 Stainless Steel

Automotive and truck exhaust systems, catalytic converters, agricultural spreaders, gas turbine exhaust silencers, and heat exchangers.


Type 409 is easilty formable.  It is suitable for deep draw applications.