1、 熱軋光圓鋼筋理論重量及允許偏差范圍公稱直徑d/mm直徑重量允許偏差允許偏差區間/mm允許偏差理論重量（kg/m）允許偏差區間最小直徑最大直徑最小重量最大重量6±0.3mm5.76.3±7%o.2220.206460.237546.56.26.80.260.24180.278287.78.30.3950.367350.42265109.710.30.6170.573180.660191211.712.30.8880.825840.9501614±0.4mm13.614.4±5%1.211.14951.27051615.616.41.581.5011.65

2、91817.618.421.92.12019.620.42.472.34652.59352221.622.42.982.8313.129熱軋帶肋鋼筋理論重量及允許偏差范圍公稱直徑d/mm直徑重量內徑d1允許偏差區間/mm允許偏差理論重量（kg/m）允許偏差區間公稱尺寸允許偏差最小直徑最大直徑最小重量最大重量65.8±0.3mm5.56.1±7%o.2220.206460.2375487.7±0.4mm7.38.10.3950.367350.42265109.69.2100.6170.573810.660191211.511.111.90.8880.825840.9

3、50161413.41313.8±5%1,211.14951.27051615.41515.81.581.5011.6591817.316.917.721.92.12019.3±0.5mm18.819.82.472.34652.59352221.320.821.8±4%2.982.86083.09922524.323.724.73.853.6964.0042827.2±0.6mm26.627.84.834.63685.0232323130.431.66.316.05766.5624363534.435.67.997.67048.30694038.7

4、77;0.7mm3839.49.879.475210.26485048.5±0.8mm47.749.315.4214.803216.0368公稱直徑d/mm鋼筋牌號重量允許偏差理論重量（kg/m）允許偏差區間最小重量最大重量6熱軋帶肋HRB335HRBF335HRB400HRBF400RRB400RRB400HRB500HRBF500±8%未經調直鋼筋允許偏差為±7%0.2220.204240.2397680.3950.36340.4266100.6170.567640.66636120.8880.816960.9590414±6%未經調直鋼筋允許偏差為

5、±5%1.211.13741.2826161.581.48521.67481821.882.12202.472.32182.618222±5%未經調直鋼筋允許偏差為±4%2.982.8313.129253.853.65754.0425284.834.58855.0715326.315.99456.6225367.997.59058.3895409.879.376510.36355015.4214.64916.1916熱軋光圓鋼筋HRB235HPB300±10%未經調直鋼筋允許偏差為±7%0.2220.19980.24426.50.260.234

6、0.28680.3950.35550.4345100.6170.55530.6787120.8880.79920.9768卷盤鋼筋和直條鋼筋（調直后）鋼筋理論重量及允許偏差范圍冷軋帶肋鋼筋（三面肋和倆面肋）理論重量及允許偏差范圍公稱直徑d/mm重量允許偏差理論重量（kgm）允許偏差區間最小重量(kg/m)最大重量(kg/m)4±4%0.0990.095040.102964.50.1250.120.1350.1540.147840.160165.50.1860.178560.1934460.2220.213120.230886.50.2610.250560.2714470.3020.289920.314087.50.3470.333120.360888.0.3950.37920.41088.50.4450.42720.462890.4990.479040.518969.5±4%0.5560.533760.57824100.6170.592320.64168