CROLOY 9V is a ferritic steel modified with columbium. It was developed at Oak Ridge National Laboratory under contract from the U.S. Department of Energy (DOE). Compared with Croloy 9M (the 9Cr-1Mo alloy) Croloy 9V provides improved strength, toughness and fatigue life with good oxidation and corrosion resistance at elevated temperatures. The alloy should be of interest to designers of a wide variety of equipment used to produce energy. Impressive test data indicate that Croloy 9V is capable of meeting the requirements of a variety of other applications. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-402. Producer or source: Babcock & Wilcox Company.