钢筋、角钢等允许偏差表

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1、钢筋混凝土用钢直径、重量允许偏差表热轧带肋钢筋（㎜）热轧光圆钢筋（㎜）公称直径公称尺寸(内径)内径允许偏差理论重量（㎏/m）重量允许偏差公称直径内径允许偏差理论重量（㎏/m）重量允许偏差Φ65.8±0.30.222±7%Φ6±0.30.222±7%Φ87.7±0.40.395Φ80.395Φ109.60.617Φ100.617Φ1211.50.888Φ120.888Φ1413.41.21±5%Φ14±0.41.208±5%Φ1615.41.58Φ161.578Φ1817.31.993Φ181.993Φ2019.3±0.52.47

2、Φ202.465Φ2221.32.98±4%Φ222.984±4%Φ2524.23.85Φ2827.2±0.64.83Φ32316.31Φ36357.99Φ4038.7±0.79.87Φ5048.5±0.815.42说明：1、公称直径：与钢筋的横截面积相等对应的圆钢直径；2、公称尺寸：指产品的具体标准尺寸，如带肋钢筋的直径、肋高、肋距等；3、选用《GB1499.1—2008钢筋混凝土用钢第一部分：热轧光圆钢筋》及《GB1499.2—2007钢筋混凝土用钢第二部分：热轧带肋钢筋》。4、各表式均由总师办供稿。热轧角钢截面特征、重量允

3、许偏差表热轧等边角钢GB9787-88热轧不等边角钢筋GB9788-88边长(㎜)厚度(㎜)截面积(㎝2)重量(㎏/m)每米重量允许偏差边长(㎜)厚度(㎜)截面积(㎝2)重量(㎏/m)每米重量允许偏差20341.131.460.891.15不超过+3%-5%25×16341.161.500.911.18不超过+3%-5%25341.431.861.121.4632×20341.491.941.171.5230341.752.281.371.7940×25341.892.471.481.94363452.112.763.381.6

4、62.162.6545×28342.152.811.692.20403452.363.093.791.852.422.9850×32342.433.181.912.494534562.663.494.295.082.092.743.373.9956×363452.743.594.422.152.823.475034562.973.904.805.692.333.063.774.4763×4045674.064.995.916.803.193.924.645.345634583.344.395.428.372.623.454.25

5、6.5770×4545674.555.616.657.663.574.405.226.01634568104.986.147.299.5211.663.914.825.727.479.1575×50568106.137.269.4711.594.815.707.439.1070456785.576.888.169.4210.674.375.406.417.408.3780×5056786.387.568.729.875.015.936.857.75755678107.378.8010.1611.5014.135.826.917.

6、989.0311.0990×5656787.218.569.8811.185.666.727.768.78热轧角钢截面特征、重量允许偏差表热轧等边角钢GB9787-88热轧不等边角钢筋GB9788-88边长(㎜)厚度(㎜)截面积(㎝2)重量(㎏/m)每米重量允许偏差边长(㎜)厚度(㎜)截面积(㎝2)重量(㎏/m)每米重量允许偏差805678107.919.4010.8612.3015.136.217.388.539.6611.87不超过+3%-5%100×63678109.6211.1112.5815.477.558.729.8

7、812.14不超过+3%-5%90678101210.6412.3013.9417.1720.318.359.6610.9513.4815.94100×806781010.6412.3013.9417.178.359.6610.9513.481006781012141611.9313.8015.6419.2622.8026.2629.639.3710.8312.2815.1217.9020.6123.26110×706781010.6412.3013.9417.178.359.6610.9513.481107810121415.

8、2017.2421.2625.2029.0611.9313.5316.6919.7822.81125×8078101214.1015.9919.7123.3511.0712.5515.4718.33125810121419.7524.3728.9133.3715