Virgo 39 is a 1% Mo low-carbon martensitic stainless steel. This composition allows both weldability and enhanced corrosion resistance. The alloy is primarily designed for erosion-corrosion resistance in Pelton wheel and Kaplan blade-type applications. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fracture toughness and fatigue. It also includes information on low and high temperature performance, and corrosion resistance as well as heat treating, machining, and joining. Filing Code: SS-905. Producer or source: Industeel USA, LLC.