標準號：ES 547-2-2000
發布日期：2000/1/27 12:00:00
實施日期：1999/12/31 12:00:00
國際標準分類號：77.140.15
適用范圍：This part of ES 547 specifies technical requirements for ribbed bars designed for reinforcement in ordinary concrete structures and for non-prestressed reinforcement in prestressed concrete structures.Five grades of steel are defined. Of these, RB 300, RB 400 and RB 500 should be considered as difficult to weld. The other two grades of steel, RB 400W and RB 500W, are readily welded by conventional welding procedures.This part of ES 547 applies to hot-rolled steel without subsequent treatment. To hot-rolled steel with controlled cooling and tempering and to cold-worked steel. The production process is at the discretion of the manufacturer.It also applies to reinforcement supplied in coil form. The requirements of this part of ES 547 apply to the straightened product.Ribbed bars produced from finished products, such as plates and railway rails, are excluded. Steel bars for use as lifting hooks are also not included.