| Square Tube |
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| Dimension Tolerance |
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| Side Lenght | ||||||||
| : DxB < 50 mm. ± 1.5 mm. Thickness : Under 3 mm. ± 0.3 mm. |
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| : DxB > 50 mm. ± 1.5 % Thickness : 3 mm. or over, ± 10% |
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| : ± 10% Lenght : +50 mm., -0 mm. |
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| Side Length | Thickness | Calculate Weight |
Cross Sectional Area |
Geometrical Moment of Inertia |
Modulus of Section |
Radius of Gyration |
||
| D x D | T | W | A | Ix, Iy | Zx, Zy | Ix, Iy | ||
| in. | mm. | mm. | kg./m. | cm2 | cm4 | cm3 | cm. | |
| 1×1 | 25×25 | 2 | 1.36 | 1.74 | 1.48 | 1.19 | 0.92 | |
| 2.3 | 1.53 | 1.97 | 1.61 | 1.29 | 0.9 | |||
| 2.6 | 1.65 | 2.1 | 1.63 | 1.31 | 0.88 | |||
| 3.2 | 1.91 | 2.44 | 1.75 | 1.4 | 0.85 | |||
| 11/4 x11/4 | 32×32 | 2.3 | 2.04 | 2.6 | 3.71 | 2.32 | 1.2 | |
| 3.2 | 2.69 | 3.42 | 4.54 | 2.84 | 1.15 | |||
| 11/2 x11/2 | 38×38 | 2.3 | 2.47 | 3.15 | 6.54 | 3.44 | 1.44 | |
| 3.2 | 3.29 | 4.19 | 8.18 | 4.3 | 1.4 | |||
| 2×2 | 50×50 | 1.6 | 2.38 | 3.03 | 11.7 | 4.68 | 1.96 | |
| 2 | 2.91 | 3.7 | 13.9 | 5.57 | 1.94 | |||
| 2.3 | 3.34 | 4.25 | 15.9 | 6.34 | 1.93 | |||
| 3.2 | 4.5 | 5.73 | 20.4 | 8.16 | 1.89 | |||
| 3.6 | 4.9 | 6.24 | 21.4 | 8.58 | 1.85 | |||
| 4 | 5.35 | 6.81 | 22.9 | 9.15 | 1.83 | |||
| 5 | 6.39 | 8.14 | 25.7 | 10.3 | 1.78 | |||
| 3×3 | 75×75 | 2.3 | 5.14 | 6.55 | 57.1 | 15.2 | 2.95 | |
| 3.2 | 7.01 | 8.93 | 75.5 | 20.1 | 2.91 | |||
| 4 | 8.59 | 10.95 | 90.2 | 24.1 | 2.87 | |||
| 4.5 | 9.55 | 12.17 | 98.6 | 26.3 | 2.85 | |||
| 4×4 | 100×100 | 2.3 | 6.95 | 8.85 | 140 | 27.9 | 3.97 | |
| 3.2 | 9.52 | 12.13 | 187 | 37.5 | 3.93 | |||
| 4 | 11.7 | 14.95 | 226 | 45.3 | 3.89 | |||
| 4.5 | 13.1 | 16.67 | 249 | 49.9 | 3.87 | |||
| 6 | 17 | 21.63 | 311 | 62.3 | 3.79 | |||
| 5×5 | 125×125 | 3.2 | 12 | 15.33 | 376 | 60.1 | 4.95 | |
| 4.5 | 16.6 | 21.17 | 506 | 80.9 | 4.89 | |||
| 5 | 18.3 | 23.36 | 553 | 88.4 | 4.86 | |||
| 6 | 21.7 | 27.63 | 641 | 103 | 4.82 | |||
| 6×6 | 150×150 | 4.5 | 20.1 | 25.67 | 896 | 120 | 5.91 | |
| 5 | 22.3 | 28.36 | 982 | 131 | 5.89 | |||
| 6 | 26.4 | 33.63 | 1,150.00 | 153 | 5.84 | |||
| 6.3 | 27.4 | 34.8 | 1,174.00 | 156 | 5.8 | |||
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