B and W 1118 FM is a carbon steel resulfurized to provide greatly improved machinability for applications where free-cutting is of prime importance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: CS-50. Producer or source: Babcock & Wilcox Company.