GB 1499.2-2007: Translated English of Chinese Standard. GB1499.2-2007: Steel for the reinforcement of concrete - Part 2: Hot rolled ribbed bars
https://www.chinesestandard.net, 2016年4月18日 - 26 頁
This part specifies the definition, type, designation, purchasing content, dimension, shape, or weight tolerance, technical specification, testing method, test rules, packing, sign and certificate of quality of the hot rolled ribbed bars of reinforced concrete.
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Types and designations
Informative Calculation Formula of Specific Projected Rib Area of Steel Bar
accurate to 0.1mm actual weight Analysis of Iron Annex Arabic numerals bar shall comply characteristic value inspection Chemical Analysis Chemical composition Chromium Clause coil comply with provisions comply with relevant Content Methods crescent ribbed bars delivery inspection diameter of steel dimension elongation Agt grain grain size hot rolled bars hot rolled ribbed included angle inner diameter Inspection items Iron and Steel June 16 length tolerance longitudinal rib Methods for Chemical Modification Sheet nominal cross-sectional area pearlite projected rib area provisions in Table provisions of GB/T provisions specified Reinforcement of Concrete relevant provisions reverse bend test rolled ribbed bars Sampling quantity specific projected rib specified in Table Spectrophotometric Method Steel and Alloy steel bar axis Steel bar nominal strength of steel strips of steel supplier and buyer surface of steel tags tensile strength tensile test test batch testing method tolerance shall comply traverse rib spacing weight and theoretical YB/T yield strength