DURICHLOR is a high silicon iron for corrosive services, especially in the handling of hydrochloric acid in all concentrations. It is also very resistant to moist chlorine gas and many destructive chloride-containing solutions. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as machining and joining. Filing Code: Fe-7. Producer or source: The Duriron Company Inc..