ARMCO LTM is a normalized, fine grain, carbon-manganese-silicon killed steel providing a high degree of notch toughness at low temperatures and also excellent weldability. It is recommended for refrigerated gas cargo tanks, pipelines and structures exposed to low temperatures. 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, and joining. Filing Code: CS-29. Producer or source: Armco Inc., Eastern Steel Division.