Type HW is a nickel-base austenitic casting grade with good resistance to oxidation and carburization and is especially suited for applications where wide and/or frequent fluctuations in temperature occur. This datasheet provides information on composition, physical properties, and elasticity as well as creep. It also includes information on high temperature performance and corrosion resistance as well as machining and joining. Filing Code: Ni-449. Producer or source: Steel Founders Society. Originally published as Alloy Digest Ni-37, November 1957, updated April 1994.