热轧带勒钢筋直径和重量允许偏差GB1499.2-2007

热轧带勒钢筋直径和重量允许偏差GB1499.2-2007 一、直径允许偏差: 公称直径,内径,1/mm 合格 标准 excel标准偏差excel标准偏差函数exl标准差函数国标检验抽样标准表免费下载红头文件格式标准下载 ，即最细直径 公称内径 允许偏差 /mm mm 6 5.8 ?0.3 5.5 8 7.7 ?0.4 7.3 10 9.6 ?0.4 9.2 12 11.5 ?0.4 11.1 14 13.4 ?0.4 13.0 16 15.4 ?0.4 15.0 18 17.3 ?0.4 16.9 20 19.3 ?0.5 18.8 22 21.3 ?0.5 20.8 25 24.2 ?0.5 23.7 28 27.2 ?0.6 26.6 32 31 ?0.6 30.4 36 35 ?0.6 34.4 40 38.7 ?0.7 38.0 50 48.5 ?0.8 47.7 二、重量允许偏差: 公称直径/mm 实际重量与理论重量的偏差/% 6,12 ?7 14,20 ?5 22,50 ?4 注:本偏差均摘自GB1499.2-2007(钢筋混凝土用钢-热轧带肋钢筋)。 coefficient not greater than 1.3; High efficiency: control 1 hour travel time between any two points within the various groups within the area up to half an hour, 1-hour access to the airport, 45min reached the city's main traffic hub, external highway for half an hour with the main channels connecting bus 1.5 hours between any two groups of core areas; Intensive: 2030 transit share rate of around 35%, 2050 bus sharing rate of 45% per cent. 3rd chapter, Yibin city, traffic situation and General ... 3.1.1 city traffic status 1, external transport passenger and cargo traffic in Yibin city, traffic at the present main railway, highway, waterway and air four modes of passenger and freight transport, there coefficient not greater than 1.3; High efficiency: control 1 hour travel time between any two points within the various groups within the area up to half an hour, 1-hour access to the airport, 45min reached the city's main traffic hub, external highway for half an hour with the main channels connecting bus 1.5 hours between any two groups of core areas; Intensive: 2030 transit share rate of around 35%, 2050 bus sharing rate of 45% per cent. 3rd chapter, Yibin city, traffic situation and General ... 3.1.1 city traffic status 1, external transport passenger and cargo traffic in Yibin city, traffic at the present main railway, highway, waterway and air four modes of passenger and freight transport, there 钢筋直径、重量允许偏差 GB 1499.1-2008热轧光圆钢筋直径允许偏差 公称直径(mm) 6(6.5) 8 10 12 14 16 18 20 22 允许偏差(mm) ?0.3 ?0.4 GB 1499.2-2007热轧带肋钢筋直径允许偏差 公称直径d 6 8 10 12 14 16 18 222 25 232 36 0 8 公称尺寸内径d1 5.8 7.9.6 11.5 13.4 15.4 17.3 19.21.3 24.2 27.31.0 35.0 7 3 2 ?0.3 ?0.4 ?0.5 ?0.6 允许偏差(mm) GB 1499.1-2008热轧光圆钢筋实际重量与理论重量的允许偏差 GB 1499.2-2007热轧带肋钢筋实际重量与理论重量的允许偏差 公称直径6 6.5 8 10 12 14 16 18 20 22 25 28 32 36 (mm) 理论重量0.222 0.26 0.395 0.617 0.888 1.21 1.58 2.0 2.47 2.98 3.85 4.83 6.31 7.99 (kg/m) 允许偏差?7 ?5 ?4 (%) 公称直径:与钢筋的横截面积相等对应的圆钢直径，简单的说就是钢筋的横截面积换算出圆形面积对应的直径。 公称尺寸就是指产品的具体标准尺寸，就是具体的能够测量的尺寸(带肋钢筋的内径)。 允许偏差，是指在公称尺寸的基础上的尺寸波动范围。 coefficient not greater than 1.3; High efficiency: control 1 hour travel time between any two points within the various groups within the area up to half an hour, 1-hour access to the airport, 45min reached the city's main traffic hub, external highway for half an hour with the main channels connecting bus 1.5 hours between any two groups of core areas; Intensive: 2030 transit share rate of around 35%, 2050 bus sharing rate of 45% per cent. 3rd chapter, Yibin city, traffic situation and General ... 3.1.1 city traffic status 1, external transport passenger and cargo traffic in Yibin city, traffic at the present main railway, highway, waterway and air four modes of passenger and freight transport, there