Rebar

There are two commonly used classification methods for rebar: one is classified by geometric shape, and it is classified or typed according to the cross-sectional shape of the transverse rib and the distance between the ribs. For example, in the British Standard (BS4449), the rebar is divided into type I, Type II. This classification mainly reflects the grip performance of rebar. The second is based on performance classification (level). For example, my country's current implementation standard, rebar is (GB1499.2-2007) and wire is 1499.1-2008). According to the strength level (yield point/tensile strength), the rebar is divided into 3 grades; in Japanese Industrial Standard (JI SG3112), rebar is divided into 5 types according to comprehensive performance; in British Standard (BS4461), several grades of rebar performance test are also specified. In addition, rebars can be classified according to their uses, such as ordinary steel bars for reinforced concrete and heat-treated steel bars for prestressed reinforced concrete.

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