1.1 This standard specifies grade, sizes, mass and tolerances, composition and manufacture, requirements, marking and labelling, sampling and criteria for conformity and testing for steel bars for reinforced concrete : round bars, hereinafter referred to as "round bars."
1.2 Round bars shall be manufactured, by hot rolling, directly from billet-, bloom- or ingot-steel made by the open hearth, basic oxygen or electric arc
furnace process.
1.3 This standard covers steel bars of circular cross-section and a length of 3.40 m and greater which may be used as reinforcement in concrete for general construction purposes; it does not cover steel bars of circular cross-section the standards for which are separately promulgated.