Ferralium 255-FG46 is a cold work hardened fastener grade with a pitting resistance equivalent number (PREN) of 40 minimum. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming and machining. Filing Code: SS-983. Producer or source: Langley Alloys.