ASTM A182 Gr F409 Stainless Steel Pipe Flanges

Stainless Steel 409/ 409M Flanges are made up of a martensitic stainless steel that is used for general purpose applications. The material has high wear and tear properties. The material has carbon, manganese, silicon, phosphorus, sulfur, 10.5% chromium, nickel and titanium for stabilization. There are different types such as the ASTM A182 f409 Weld Neck flange, socket weld flange, blind flange, slip on flange and so on. These flanges belong to the ASTM A182 specification which covers flanges for high temperature and high pressure services.

The flanges also come under different standards such as the ASTM, ASME, ANSI and DIN standards. The sizes of the flanges vary according to the standards and the diameters and wall thicknesses vary as well. The ss 409M blind flange is used in applications where the pipelines have to be closed at one end either permanently or temporarily. The flange material has 380MPa minimum tensile strength and 207MPa minimum yield strength with 207HB max Brinell hardness and 20% elongation rate.  The 409M Stainless Steel Pipe Flanges are therefore strong and hard. The flange types vary according to the face types such as the flat face, raised face and the ring type joint. The flanges can also vary as SS 409 Plate Flange, threaded flange, screwed flange or forged flange. Each of these production types have different application usages. There are also special types of flanges such as the AISI 409 Reducing Flanges which connect pipes together while reducing volume of flow.