Nicrofer 2509 Si 7 is an austenitic low-carbon nickel-chromium alloy containing 7 wt.% silicon. The alloy was designed for resistance to hot concentrated sulfuric acid. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-673. Producer or source: Krupp VDM Technologies Corporation.