BETHLEHEM RQ 100L is a low-carbon, low-sulfur, 100 ksi minimum yield strength quenched-and-tempered plate steel offering improved toughness and weldability over other quenched-and-tempered plate grades. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on forming, heat treating, and joining. Filing Code: CS-125. Producer or source: Bethlehem Steel Corporation.