钢筋外径、内径、每米重数据表钢筋外径、内径、每米重数据表 钢筋直径mm 单根面积cm2 钢筋外径mm 钢筋内径mm钢筋每米重kg 6 0.283 6.8 5.8 0.222 7 0.385 7.8 6.8 0.302 8 0.503 9.0 7.5 0.395 9 0.636 10.0 8.5 0.499 10 0.785 11.3 9.3 0.617 12 1.131 13.0 11.0 0.888 14 1.539 15.5 13.0 1.210 16 2.011 17.5 15.0 1.580 18 2.545 20.0 17.0 2.000 20 3.142 22.0 19.0 2.470 22 3.801 24.0 21.0 2.980 25 4.909 27.0 24.0 3.850 28 6.158 30.0 26.5 4.830 32 8.042 34.5 30.5 6.310 36 10.179 39.5 34.5 7.990 40 12.566 43.5 38.5 9.870