ASTM A182 steel is the standard specification for forged or rolled alloys, stainless steel pipe flanges, and all types of parts and valves for high temperature service A182 Carbon Steel ASTM flanges are manufactured with ideal chemical experiments and connections and will not wear out quickly. This grade of Carbon Steel ASTM flanges is used for stainless steel pipe flanges, rolled a... https://www.shasanpiping.com/carbon-steel-a-182-flanges-manufacturers-exporters-suppliers-stockists.html