14 screw steel 1 meters multiple?
The performance of classification (class), for example, China's current implementation of standards, (G B1499.2-2007) for steel wire for 1499.1-2008), according to the strength (tensile strength yield point / steel) will be divided into 3 levels; the Japanese industrial standard (JI SG3112), according to the comprehensive performance will be divided into thread steel 5 species; the British Standard (BS4461), also provides some level of performance test of thread steel. In addition, the thread steel can be classified according to the use, such as reinforced concrete, ordinary steel bars and reinforced concrete bars for heat treatment.
Classified according to geometric shapes, according to the cross section of the rib section and the spacing of the ribs for classification or classification, such as the British Standard (BS4449), the thread steel is divided into type I, type ii. This classification mainly reflects the tightening performance of the threaded steel.
