Stainless Steel 409 UNS S40900
Stainless Steel 409 (UNS S40900) is a stabilized ferritic stainless steel that provides improved oxidation and corrosion resistance compared to carbon steel. ASTM A240 defines three (3) sub categories of Type 409 stainless steel; UNS S40910, UNS S40920 and UNS S40930. Each of these designations has a slightly different Ti or Nb stabilization requirement. Each of these compositions can be supplied as UNS S40900 unless the purchaser specifically identifies a specific composition.
Stainless Steel 409 (UNS S40900) plate/sheet can be cut, blanked stretch formed and drawn without difficulty. Bebon will offer Stainless Steel 409 (UNS S40900) plate/sheet with cutting, beveling, drilling and welding service.
Stainless Steel 409 UNS S40900 Corrosion:
The corrosion resistance of 409 stainless is about the same as Type 410 stainless steel. Type 409 offers improved corrosion resistance in comparison to carbon steels. However, its corrosion resistance is lower in comparison to other stainless steels with higher chromium content. Type 409 offers sufficient resistance to corrosion and oxidation to be used in many automotive and non-automotive applications.
Stainless Steel 409 UNS S40900 Welding:
Stainless Steel 409 (UNS S40900) is readily welded using the conventional welding procedures common to carbon steel. These include high frequency, resistance, gas tungsten arc (GTAW or TIG), gas metal arc (GMAW or MIG), electron beam and laser techniques. Although autogenous welds are common, particularly in manufacture of tubing, a filler metal, Type 409Cb, is often employed.
Typical Applications:
Stainless Steel 409 (UNS S40900) plate/sheet is mainly used in Automotive exhaust systems applications such as manifolds exhaust pipes, catalytic converters, mufflers, tail pipes and other components. Non-automotive exhaust applications such as home heating systems, automotive thermostats and fuel filters, electrical transformer cases, caskets and heat exchanger tubing.
BEBON is able to offer Stainless Steel 409 (UNS S40900) plate, Stainless Steel 409 (UNS S40900) sheet, and Stainless Steel 409 (UNS S40900) strip. Welcome to inquiry.