C 型 钢 尺寸 面积 重量 型钢重心 mm Cm2 kg/m cm 80 50 25 2.5 5.260 4.317 2.161 4.0 80 50 25 3.0 6.195 5.133 2.158 4.0 100 50 20 2.5 5.510 4.514 1.835 5.0 100 50 20 3.0 6.495 5.369 1.848 5.0 120 50 20 2.5 6.010 4.906 1.709 6.0 120 50 20 3.0 7.095 5.840 1.705 6.0 140 50 20 2.5 6.510 5.229 1.588 7.0 140 50 20 3.0 7.695 6.331 1.583 7.0 160 50 20 3.0 8.5 7.253 1.8 8.0 160 50 20 3.0 9.495 7.724 2.229 8.0 180 60 20 3.0 9.495 7.724 1.739 9.0 180 70 20 3.0 10.095 8.195 2.106 9.0 200 60 20 3.0 10.095 7.924 1.6 10.0 200 70 20 3.0 10.695 8.395 1.996 10.0 250 40 20 3.0 10.095 7.924 0.790 12.50 300 40 15 3.0 11.595 9.102 0.707 15.0 400 50 15 3.0 15.195 11.928 0.783 20.0 Z 型 钢 规格尺寸 截面面积 理论重量 H×B×t1×t2 cm2 kg/m Z100×40×20×2.0 4.07 3.19 Z100×40×20×2.5 4.98 3.91 Z120×50×20×2.0 4.87 3.82 Z120×50×20×2.0 5.98 4.70 Z120×50×20×3.0 7.05 5. Z140×50×20×2.5 6.48 5.09 Z140×50×20×3.0 7.65 6.01 Z160×60×20×2.5 7.48 5.87 Z160×60×20×3.0 8.85 6.95 Z160×70×20×2.5 7.98 6.27 Z160×70×20×3.0 9.45 7.42 Z180×70×20×2.5 8.75 6. Z180×70×20×3.0 10.44 8.20 Z200×70×20×2.5 9.25 7.26 Z200×70×20×3.0 11.04 8.67 Z240×100×20×2.5 11.75 9.22 Z240×100×20×3.0 14.04 11.02
