


Rectangular Hollow Section
RHS | Thickness | Sec Area | Unit | Moment of Inertia | Radius of Gyration | Elastic Modulus | Torsional Constants | Outer Surface Area |
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mm | mm | cm2 | kg/m | cm4 | cm4 | cm | cm | cm3 | cm3 | cm4 | cm3 | m2 |
50x25 | 2 | 2.74 | 2.15 | 8.38 | 2.81 | 1.75 | 1.01 | 3.35 | 2.25 | 6.97 | 3.79 | 0.142 |
2.6 | 3.46 | 2.71 | 10.16 | 3.36 | 1.71 | 0.99 | 4.06 | 2.69 | 8.27 | 4.53 | 0.137 | |
3.2 | 4.13 | 3.24 | 11.63 | 3.8 | 1.68 | 0.96 | 4.35 | 3.04 | 9.52 | 5.12 | 0.134 | |
4 | 4.95 | 3.88 | 13.13 | 4.23 | 1.63 | 0.92 | 5.25 | 3.38 | 10.86 | 5.69 | 0.129 | |
60x40 | 2.26 | 4.76 | 3.73 | 22.76 | 12.09 | 2.19 | 1.59 | 7.59 | 6.05 | 25.59 | 9.83 | 0.187 |
2.9 | 5.25 | 4.12 | 24.74 | 13.11 | 2.17 | 1.58 | 8.25 | 6.56 | 28.02 | 10.66 | 0.185 | |
3.6 | 6.35 | 4.98 | 28.9 | 15.23 | 2.13 | 1.55 | 9.63 | 7.62 | 33.3 | 12.41 | 0.181 | |
4.5 | 7.67 | 6.02 | 33.31 | 17.44 | 2.08 | 1.51 | 11.1 | 8.72 | 39.34 | 14.29 | 0.177 | |
80x40 | 2.6 | 5.8 | 4.55 | 46.58 | 15.74 | 2.84 | 1.65 | 11.65 | 7.87 | 38.5 | 13.46 | 0.227 |
2.9 | 6.41 | 5.03 | 50.87 | 17.11 | 2.82 | 1.63 | 12.72 | 8.56 | 42.23 | 14.66 | 0.225 | |
3.2 | 7.01 | 5.5 | 54.94 | 18.41 | 2.8 | 1.62 | 13.74 | 9.21 | 45.83 | 15.78 | 0.224 | |
4 | 8.55 | 6.71 | 64.79 | 21.49 | 2.75 | 1.59 | 16.2 | 10.74 | 54.77 | 18.49 | 0.219 | |
4.8 | 10.01 | 7.85 | 73.22 | 24.03 | 2.71 | 1.55 | 18.3 | 12.02 | 62.81 | 20.79 | 0.215 | |
96x48 | 3.2 | 8.54 | 6.71 | 98.61 | 33.28 | 3.4 | 1.97 | 20.54 | 13.87 | 82.13 | 23.82 | 0.272 |
4 | 10.47 | 8.22 | 117.54 | 39.32 | 3.35 | 1.94 | 24.49 | 16.38 | 99.11 | 28.24 | 0.267 | |
4.8 | 12.31 | 9.66 | 134.35 | 44.55 | 3.3 | 1.9 | 27.99 | 18.56 | 114.8 | 32.14 | 0.263 |
Square Hollow Section
RHS | Thickness | Sec Area | Unit | Moment of Inertia | Radius of Gyration | Elastic Modulus | Torsional Constants | Outer Surface Area |
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mm | mm | cm2 | kg/m | cm4 | cm4 | cm | cm | cm3 | cm3 | cm4 | cm3 | m2 |
25x25 | 1.6 | 1.43 | 1.12 | 1.28 | 1.28 | 0.94 | 0.94 | 1.02 | 1.02 | 1.96 | 1.46 | 0.092 |
2 | 1.74 | 1.36 | 1.48 | 1.48 | 0.92 | 0.92 | 1.19 | 1.19 | 2.29 | 2.29 | 0.09 | |
2.6 | 2.16 | 1.69 | 1.72 | 1.72 | 0.89 | 0.89 | 1.38 | 1.38 | 2.86 | 1.92 | 0.087 | |
3.2 | 2.53 | 1.98 | 1.89 | 1.89 | 0.86 | 0.86 | 1.51 | 1.51 | 2.96 | 2.07 | 0.084 | |
30x30 | 2.6 | 2.68 | 2.10 | 3.23 | 3.23 | 1.10 | 1.10 | 2.15 | 2.15 | 4.96 | 2.93 | 0.110 |
3.2 | 3.17 | 2.49 | 3.62 | 3.62 | 1.07 | 1.07 | 2.41 | 2.41 | 5.10 | 3.05 | 0.107 | |
4.0 | 3.75 | 2.94 | 3.97 | 3.97 | 1.03 | 1.03 | 2.64 | 2.64 | 4.52 | 2.84 | 0.104 | |
32x32 | 2 | 2.3 | 1.8 | 3.36 | 3.36 | 1.21 | 1.21 | 2.1 | 2.1 | 5.3 | 3.05 | 0.118 |
2.6 | 2.88 | 2.26 | 4.02 | 4.02 | 1.18 | 1.18 | 2.51 | 2.51 | 6.45 | 3.63 | 0.115 | |
3.2 | 3.42 | 2.69 | 4.54 | 4.54 | 1.15 | 1.15 | 2.84 | 2.84 | 7.41 | 4.07 | 0.112 | |
38x38 | 2 | 2.78 | 2.18 | 5.88 | 5.88 | 1.46 | 1.46 | 3.1 | 3.1 | 9.31 | 4.54 | 0.142 |
2.6 | 3.51 | 2.75 | 7.14 | 7.14 | 1.43 | 1.43 | 3.76 | 3.76 | 11.51 | 5.49 | 0.139 | |
3.2 | 4.19 | 3.29 | 8.18 | 8.18 | 1.4 | 1.4 | 4.3 | 4.3 | 13.45 | 6.28 | 0.136 | |
4 | 5.03 | 3.95 | 9.26 | 9.26 | 1.36 | 1.36 | 4.87 | 4.87 | 15.67 | 7.12 | 0.131 | |
40x40 | 2.6 | 3.72 | 2.92 | 8.45 | 8.45 | 1.51 | 1.51 | 4.22 | 4.22 | 13.63 | 6.2 | 0.147 |
2.9 | 4.09 | 3.21 | 9.11 | 9.11 | 1.49 | 1.49 | 4.56 | 4.56 | 14.85 | 6.68 | 0.145 | |
3.2 | 4.45 | 3.49 | 9.72 | 9.72 | 1.48 | 1.48 | 4.86 | 4.86 | 16 | 7.12 | 0.144 | |
4 | 5.35 | 4.2 | 11.07 | 11.07 | 1.44 | 1.44 | 5.54 | 5.54 | 18.75 | 8.12 | 0.139 | |
50x50 | 2.6 | 4.7 | 3.69 | 16.91 | 16.91 | 1.9 | 1.9 | 6.83 | 6.83 | 27.19 | 10.11 | 0.185 |
2.9 | 5.19 | 4.07 | 18.37 | 18.37 | 1.88 | 1.88 | 7.42 | 7.42 | 29.81 | 10.98 | 0.183 | |
3.6 | 6.28 | 4.93 | 21.42 | 21.42 | 1.85 | 1.85 | 8.66 | 8.66 | 35.54 | 12.81 | 0.179 | |
4.5 | 7.58 | 5.95 | 24.64 | 24.64 | 1.8 | 1.8 | 9.96 | 9.96 | 42.15 | 14.79 | 0.175 | |
72x72 | 3.2 | 8.54 | 6.71 | 66.32 | 66.32 | 2.79 | 2.79 | 18.42 | 18.42 | 106.81 | 27.47 | 0.272 |
4 | 10.47 | 8.22 | 79.03 | 79.03 | 2.75 | 2.75 | 21.95 | 21.95 | 129.85 | 32.78 | 0.267 | |
4.8 | 12.31 | 9.66 | 90.31 | 90.31 | 2.71 | 2.71 | 25.09 | 25.09 | 151.55 | 37.55 | 0.263 | |
4 | 11.75 | 9.22 | 111.04 | 111.04 | 3.07 | 3.07 | 27.76 | 27.76 | 181.22 | 41.49 | 0.299 | |
4.8 | 13.85 | 10.87 | 127.58 | 127.58 | 3.04 | 3.04 | 31.89 | 31.89 | 212.26 | 47.7 | 0.295 |
Grade | Y.S. (MIN) MPA | T.S. (MIN) MPA |
YST-210 | 210 (21.42) | 330 (33.66) |
YST-240 | 240 (24.48) | 410 (41.82) |
YST-310 | 310 (31.62) | 450 (45.90) |