NI-HARD is a white cast iron alloyed with nickel and chromium to give high hardness and outstanding resistance to abrasion. The structure consists of hard carbide matrix rendered martensitic by the nickel content. The wearing faces of heavy castings may be chilled, thus giving a white iron face, backed by grey cast iron where the metal has cooled more slowly. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on casting, heat treating, machining, and joining. Filing Code: CI-9. Producer or source: Allen-Sherman-Hoff Pump Company.

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