扁铁理论重量-扁钢规格表扁钢规格、重量表[冶标(GB)704-65]厚 度4 5 6 7 8 9 10 11 12 14 16 18 20 22 25 28 30宽度(mm) 重 量 (kg/m)12 0.380.470.57 0.66 0.75 14 0.440.550.66 0.77 0.88 16 0.500.630.75 0.88 1.00 1.15 1.26 18 0.570.710.85 0.99 1.13 1.27 1.41 20 0.630.790.94 1.10 1.26 1.41 1.57 1.73 1.88 22 0.690.861.04 1.21 1.38 1.55 1.73 1.90 2.07 25 0.790.981.18 1.37 1.57 1.77 1.96 2.16 2.36 2.75 3.14 28 0.881.101.32 1.54 1.76 1.98 2.20 2.42 2.64 3.08 3.53 30 0.941.181.41 1.65 1.88 2.12 2.36 2.59 2.83 3.36 3.77 4.24 4.71 32 1.011.251.50 1.76 2.01 2.26 2.54 2.76 3.01 3.51 4.02 4.52 5.02 （35） 1.101.371.65 1.92 2.20 2.75 3.30 3.95 36 1.131.411.69 1.97 2.26 2.51 2.82 3.11 3.39 3.95 4.52 5.09 5.65 40 1.261.571.88 2.20 2.51 2.83 3.14 3.45 3.77 4.40 5.02 5.65 6.28 6.91 7.85 8.79 45 1.411.772.12 2.47 2.83 3.18 3.53 3.89 2.24 4.95 5.65 6.36 7.07 7.77 8.83 9.89 10.6050 1.571.962.36 2.75 3.14 3.53 3.93 4.32 4.71 5.50 6.28 7.07 7.85 8.64 9.81 10.9911.78（55） 1.732.162.59 3.02 3.45 4.32 5.19 6.0556 1.762.202.64 3.08 3.52 3.95 4.39 4.83 5.27 6.15 7.30 7.91 8.79 9.67 10.9912.3113.1960 1.882.362.83 3.30 3.77 4.24 4.71 5.18 5.65 6.59 7.54 8.48 9.42 10.3611.7813.1914.1363 1.982.472.97 3.46 3.95 4.45 4.94 5.44 5.93 6.92 7.91 8.90 9.69 10.8812.3613.8514.3465 2.042.553.06 3.57 4.08 4.59 5.10 5.61 6.12 7.14 8.16 9.19 10.2111.2312.7614.2915.3170 2.202.753.30 3.85 4.40 4.95 5.50 6.04 6.59 7.69 8.79 8.89 10.9912.0913.7415.3916.4975 2.362.943.53 4.12 4.71 5.30 5.89 6.48 7.07 8.24 9.42 10.6011.7812.9514.7216.4917.6680 2.513.143.77 4.40 5.02 5.65 6.28 6.91 7.54 8.79 10.0511.3012.5613.8215.7017.5818.8485 2.673.344.00 4.67 5.34 6.01 6.67 7.34 8.01 9.34 10.6812.0113.3514.6816.6818.6820.0290 2.833.534.24 4.95 5.56 6.36 7.07 7.77 8.48 9.89 11.3012.7214.1315.5417.6519.7821.2095 2.983.734.47, 5.22 5.97 6.71 7.46 8.20 8.95 10.4411.9313.4214.9216.4118.8420.8822.37100 3.143.934.71 5.50 6.28 7.07 7.85 8.64 9.42 10.9912.5614.1315.7017.2719.6321.9823.55105 3.304.124.95 5.77 6.59 7.42 8.24 9.07 9.89 11.5413.1914.8416.4918.1820.6123.0824.73110 3.454.325.18 6.04 6.91 7.77 8.64 9.50 10.3612.0913.8215.5417.2719.0021.5924.1825.91120 3.774.715.65 6.59 7.54 8.48 9.42 10.3611.3013.1915.0716.9618.8420.7223.5526.3828.26125 3.934.915.89 6.67 7.85 8.83 9.81 10.7611.7813.7415.7017.6619.6321.5024.5327.4829.44130 4.085.106.12 7.14 8.16 9.18 10.2111.2312.2514.2916.3318.8720.4122.4525.5128.5730.62140 4.405.506.59 7.69 8.79 9.89 10.9912.0913.1915.3917.5819.7821.9824.1827.4830.7732.97150 4.715.897.07 8.24 9.42 10.6011.7812.9514.1316.4918.8421.2023.5525.9129.4432.9735.33160 5.026.287.54 8.79 10.0511.3012.5613.8215.0717.5820.1022.6125.1227.6331.4035.1737.63170 5.346.678.01 9.34 10.6812.0113.3514.6816.0118.6821.3524.0226.0929.3633.3637.3740.04180 5.657.078.48 9.89 11.3012.7214.1315.5416.9619.7822.6125.4328.2631.0935.3339.5642.39190 5.977.468.95 10.4411.9313.4214.9216.4117.9020.8823.8626.8529.8332.8137.2941.7644.75200 6.287.859.42 10.9912.5614.1315.7017.2718.8421.9825.1228.2631.4034.5439.2543.9647.10注 扁钢按其表列重量不同分为三组：第一组 每 m 小于 19kg，通常长（非定尺）3~9m 。
第二组 每 m 小于 19~60kg，通常长（非定尺）3~7m第三组 每 m 大于 60kg，通常长（非定尺）3~5m 括号内型号为非标准产品，通常长度 2~6m。