Stainless Steel
Flanges

Stainless Steel Flanges, also known as 18-8 grade, have a higher chromium content and a low carbon content. The alloy’s low carbon content limits the formation of carbide precipitates during welding while also making Stainless Flanges less susceptible to intergranular corrosion. Because of the alloy’s high chromium content, the ASME B16.9 Sa 182 BLRF Flanges are resistant to oxidizing solutions such as nitric acid up to 55 percent weight and up to 176°F. Alloy flanges are also known to be resistant to moderately aggressive organic acids such as acetic acid. The nickel in the alloy is responsible for the ASTM A182 Flange’s resistance in moderately reducing solutions, such as pure phosphoric acid at any concentration, in cold solutions, and up to 10% diluted hot solutions.