This is one of those parts that makes installs and future maintenance a lot easier. This 1/2 slip-on flange is 304 Stainless Steel with a raised face face in 150#. 304 stainless is a reliable all-around choice for many industrial environments where corrosion resistance matters. Slip-on flanges slide over the pipe, which can make alignment easier during fabrication and installation. ItÕs built with a raised-face surface to help create a confident seal when paired with the right gasket. Have a question before you buy? Send us the basics of your application and weÕll point you in the right direction.