Specification for hot rolled & hot rolled & processed high tensile alloy steel bars for the prestressing of concrete Alloy steels, Steels, Bars (materials), High-tensile steels, Prestressing steels, Reinforcing steels, Structural steels, Hot-working, Rolling, Reinforcing materials, Concretes, Prestressed concrete, Reinforced concrete, Designations, Chemical composition, Size, Testing conditions, Test specimens, Tensile strength, Proof stress, Area, Mass, Dimensional tolerances, Weight tolerances, Breaking load, Proof loading, Elongation at fracture