方管尺寸规格表 尺 寸 特 性** 公称*尺寸 壁厚 每英尺重量 截面积 I S r ln. ln. Lb. ln.2 ln.4 ln.3 ln. 16×16 .5000 1/2 103.30 30.4 1200 150 6.29 .3750 3/8 78.52 23.1 931 116 6.35 .3125 5/16 65.87 19.4 789 98.6 6.38 14×14 .5000 1/2 89.68 26.4 791 113 5.48 .3750 3/8 68.31 20.1 615 87.9 5.54 .3125 5/16 57.36 16.9 522 74.6 5.57 12×12 .5000 1/2 76.07 22.4 485 80.9 4.66 .3750 3/8 58.10 17.1 380 63.4 4.72 .3125 5/16 48.86 14.4 324 54.0 4.75 .2500 1/4 39.43 11.6 265 44.1 4.78 10×10 .6250 5/8 76.33 22.4 321 64.2 3.78 .5000 1/2 62.46 18.4 271 54.2 3.84 .3750 3/8 47.90 14.1 214 42.9 3.90 .3125 5/16 40.35 11.9 183 36.7 3.93 .2500 1/4 32.63 9.59 151 30.1 3.96 8×8 .6250 5/8 59.32 17.4 153 38.3 2.96 .5000 1/2 48.85 14.4 131 32.9 3.03 .3750 3/8 37.69 11.1 106 26.4 3.09 .3125 5/16 31.84 9.36 90.9 22.7 3.12 .2500 1/4 25.82 7.59 75.1 18.8 3.15 .1875 3/16 19.63 5.77 58.2 14.6 3.18 7×7 .5000 1/2 42.05 12.4 84.6 24.2 2.62 .3750 3/8 32.58 9.58 68.7 19.6 2.68 .3125 5/16 27.59 8.11 59.5 17.0 2.71 .2500 1/4 22.42 6.59 49.4 14.1 2.74 .1875 3/16 17.08 5.02 38.5 11.0 2.77
方管尺寸规格表
