Profile: Duva, Inc., James specializes in piping components. Our product line includes pipes, fittings, flanges, pressure fittings, bars, plate and seamless tubings. Our alloy 20 is one of the stainless steel that is designed for maximum acid attack resistance to acid attack. The alloy is stabilized with columbium to minimize carbide precipitation during welding. It has good mechanical properties and can be fabricated with comparative ease. It is featured with resistance against 20-40% sulfuric acid and general corrosion resistance against sulfuric acid. Our alloy C-276 is an wrought version of alloy C and has the same corrosion resistance as the material. The alloy can be joined by all of the common welding methods and resists the formation of grain boundary precipitates in the weld-affected zone.