BS 4449-2005
混凝土增强钢.可焊增强钢.棒材、卷材和开卷产品.规范

Steel for the reinforcement of concrete - Weldable reinforcing steel - Bar, coil and decoiled product - Specification

BS 4449-2005 发布历史

This British Standard specifies requirements for ribbed weldable reinforcing; steel used for the reinforcement of concrete structures. The standard covers steel delivered in the form of bars, coils and decoiled products. The standard contains provisions for three steel grades, all of 500 MPa characteristic yield strength, but with different ductility characteristics. The three grades are B500A. B500B and B500C. The weldability requirements for all grades of steel are specified in terms of the chemical composition, and in particular the carbon equivalent value. Steel bars produced by re-rolling finished products, or by rolling material of which the metallurgical history is not fully documented or not known, are not covered by this British Standard. NOTE Flash welds in lengths of bar are permissible under this standard, provided all the mechanical requirements are met. However, for some purposes, purchasers might specifically require bars without flash welds, and if so this ought to be stated at the time of enquiry and/or order.

BS 4449-2005由英国标准学会 GB-BSI 发布于 2005-09-30，并于 2006-01-01 实施。

BS 4449-2005 在中国标准分类中归属于: Q73 金属构配件，在国际标准分类中归属于: 77.140.15 混凝土增强用钢,91.080.40 混凝土结构。

BS 4449-2005的历代版本如下：

• 1997年05月15日 BS 4449-1997 混凝土配筋用碳素钢筋规范
• 2005年09月30日 BS 4449-2005 混凝土增强钢.可焊增强钢.棒材、卷材和开卷产品.规范
• 2005年09月30日 BS 4449-2005+A2-2009 混凝土增强钢.可焊接增强钢.棒材、卷材和拆卷产品.规范
• 2005年09月30日 BS 4449-2005+A3-2016 混凝土增强钢.可焊接增强钢.棒材、卷材和拆卷产品.规范

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标准号

BS 4449-2005

发布日期

2005年09月30日

实施日期

2006年01月01日

废止日期

无

中国标准分类号

Q73

国际标准分类号

77.140.15;91.080.40

发布单位

GB-BSI

适用范围

This British Standard specifies requirements for ribbed weldable reinforcing; steel used for the reinforcement of concrete structures. The standard covers steel delivered in the form of bars, coils and decoiled products. The standard contains provisions for three steel grades, all of 500 MPa characteristic yield strength, but with different ductility characteristics. The three grades are B500A. B500B and B500C. The weldability requirements for all grades of steel are specified in terms of the chemical composition, and in particular the carbon equivalent value. Steel bars produced by re-rolling finished products, or by rolling material of which the metallurgical history is not fully documented or not known, are not covered by this British Standard. NOTE Flash welds in lengths of bar are permissible under this standard, provided all the mechanical requirements are met. However, for some purposes, purchasers might specifically require bars without flash welds, and if so this ought to be stated at the time of enquiry and/or order.

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