Nimonic alloy PK33 is a nickel-base aerospace alloy developed to produce sheet with ultrahigh strength and good formability. This datasheet provides information on composition, physical properties, hardness, tensile properties, and shear strength as well as creep. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: Ni-626. Producer or source: Special Metals Corporation.