ABREX 450LT (hardness target of 450 HBW) is one of the Abrex series of abrasion resistant steel plate alloys. All of the products are maintained at very low impurity levels, making them well suited to welding and forming. The LT designation indicates an extra tough grade. This datasheet provides information on composition, physical properties, hardness, tensile properties, and bend strength as well as fracture toughness. It also includes information on surface qualities as well as forming, machining, and joining. Filing Code: SA-769. Producer or source: Nippon Steel and Sumitomo Metal Corporation.