The S31803 is used in many programs in unique industries such as superheaters, boilers, condensers, heat exchangers, chillers, coolers/intercoolers, etc. They are also used in unique industries such as fertilizer plants, oil refineries, steel mills, sugar industries, and more. Duplex WNR 1.4462 Forged Socket Weld Hex Plus Fittings done by run mode and follow steps to complete important radii with buyer drawing.