Neonox Overseas owned a position of leading manufacturer and supplier of Duplex Steel UPS 531803 Sheets amongst our clients. Duplex Steel UM 531803 Plates are used in Food processing equipment, 011 field piping and heat exchangers, Flue gas desulf end. equipment, and more. It has lower thermal expansion and higher heat conductivity than ant… stainless Deets. Duplex Ste. UN5 531803 Coils are a magnet., a property that can be fined to easily differentiate them from common ..lc grades of stainless. They are ado used in Cargo tan. for ships and trucks, Piot. Ls plants, and more. A mixture of nitric acid and fluor. acid is used In pickling. Our product Is as weit commonly used In gas turbine blades seals a. in many other applications. We also offer these products in customized specifications.