TUF STUF 224K is a heat treatable type of aluminum bronze containing about 5% nickel. It is tough and corrosion resistant. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-15. Producer or source: Mueller Brass Company.