| 边长(mm) | 截面面积(cm2) | 理论重量 (kg/m) | 边长(mm) |
截面面积(cm2) | 理论重量(kg/m) |
| 5 | 0.25 | 0.196 | 30 | 9.00 | 7.06 |
| 6 | 0.36 | 0.283 | 32 | 10.24 | 8.04 |
| 7 | 0.49 | 0.385 | 34 | 11.56 | 9.07 |
| 8 | 0.64 | 0.502 | 36 | 12.96 | 10.17 |
| 9 | 0.81 | 0.636 | 38 | 14.44 | 11.24 |
| 10 | 1.00 | 0.785 | 40 | 16.00 | 12.56 |
| 11 | 1.21 | 0.95 | 42 | 17.64 | 13.85 |
| 12 | 1.44 | 1.13 | 45 | 20.25 | 15.90 |
| 13 | 1.69 | 1.33 | 48 | 23.04 | 18.09 |
| 14 | 1.96 | 1.54 | 50 | 25.00 | 19.63 |
| 15 | 2.25 | 1.77 | 53 | 28.09 | 22.05 |
| 16 | 2.56 | 2.01 | 56 | 31.36 | 24.61 |
| 17 | 2.89 | 2.27 | 60 | 36.00 | 28.26 |
| 18 | 3.24 | 2.54 | 63 | 39.69 | 31.16 |
| 19 | 3.61 | 2.82 | 65 | 42.25 | 33.17 |
| 20 | 4.00 | 3.14 | 70 | 49.00 | 38.49 |
| 21 | 4.41 | 3.46 | 75 | 56.25 | 44.16 |
| 22 | 4.84 | 3.80 | 80 | 64.00 | 50.24 |
| 24 | 5.76 | 4.52 | 85 | 72.25 | 56.72 |
| 25 | 6.25 | 4.91 | 90 | 81.00 | 63.59 |
| 26 | 6.76 | 5.30 | 95 | 90.25 | 70.85 |
| 28 | 7.84 | 6.15 | 100 | 100.00 | 78.50 |
Square steel f ā NGG ā ng squares theoretical weight calculation formula: length of side Х side length Х 0.00785 = kg/m square steel can be pided into a joint and seamless. Seamed squares is by steel plate welding together, make it square steel tube. Seamless squares is by the seamless steel tube to pull and system. The compression ability is far greater than seamed square tube. Side length (mm) cross section area (cm2) theoretical weight (kg/m)
Side length (mm) cross section area (cm2) theoretical weight (kg/m)
5 0.25 0.196 30 9.00 7.06
6 0.36 0.283 and 10.24 8.04
7 0.49 0.385 and 11.56 9.07
8 0.64 0.502 and 12.96 10.17
9 0.81 0.636 and 14.44 11.24
10 1.00 0.785 and 16.00 12.56
11 1.21 0.95 and 17.64 13.85
12 1.44 1.13 45 20.25 15.90
13 1.69 1.33 and 23.04 18.09
14 1.96 1.54 50 25.00 19.63
15 2.25 1.77