Rectangular Hollow sections features a high strength to weight ratio that results in savings in steel and costs. The sections are best suited for welding, are corrosion resistant, and easily bendable which leads to the shaping and construction of aesthetically appealing structures without compromising on strength and durability.
The thickness of these steel hollow sections vary from 1.00 mm to 10 mm, depending on what application the tubes would service
Steel box hollow sections are available in two categories –
Square hollow sections (SHS) – These are manufactured up to a maximum size of 300 x 300 mm Rectangular hollow sections (RHS) – These are manufactured up to a maximum size of 400 x 200 mm
| Dimensions and Properties of RHS AS PER IS : 4923 | ||||||
| RHS D*B | Thickness | Sec Area | Unit Wt | Elastic Modulus | Outer Surface | |
| (mm) | t | A | W | zxx | zyy | Area per m |
| (MM) | cm2 | kg/m | cm3 | cm3 | m2 | |
| 50*25 | 2.0 2.6 3.2 4.0 |
2.74 3.46 4.13 4.95 |
2.15 2.71 3.24 3.88 |
3.35 4.06 4.35 5.25 |
2.25 2.69 3.04 3.38 |
0.14 0.14 0.13 0.13 |
| 60*40 | 2.6 2.9 3.6 4.5 |
4.76 5.25 6.35 7.67 |
3.73 4.12 4.98 6.02 |
7.59 8.25 9.63 11.10 |
6.05 6.56 7.62 8.72 |
0.19 0.19 0.18 0.18 |
| 66*33 | 2.6 2.9 3.6 4.5 |
4.70 5.19 6.28 7.58 |
3.69 4.07 4.93 5.95 |
7.62 8.28 9.66 11.10 |
5.11 5.53 6.37 7.23 |
0.19 0.19 0.18 0.18 |
| 80*40 | 2.6 2.9 3.2 4.0 4.8 |
5.80 6.41 7.01 8.55 10.01 |
4.55 5.03 5.50 6.71 7.85 |
11.65 12.72 13.74 16.20 18.30 |
7.87 8.56 9.21 10.74 12.02 |
0.23 0.23 0.22 0.22 0.22 |
| 96*48 | 3.2 4.0 4.8 |
8.45 10.57 12.31 |
6.71 8.22 9.66 |
20.54 24.49 27.99 |
13.87 16.38 18.56 |
0.27 0.27 0.26 |
| 122*61 | 3.6 4.5 5.4 |
12.32 15.14 17.85 |
9.67 11.88 14.01 |
38.13 45.73 52.60 |
25.84 30.75 35.09 |
0.35 0.34 0.34 |
| 145*82 | 4.8 5.4 |
20.28 22.60 |
15.92 17.74 |
76.57 84.26 |
55.73 61.12 |
0.43 0.43 |
| 172*92 | 4.8 5.4 |
23.83 26.59 |
18.71 20.88 |
106.64 117.73 |
75.41 82.99 |
0.50 0.50 |
| 200*100 | 4.0 5.0 6.0 7.0 8.0 |
22.95 28.36 33.63 38.78 43.79 |
18.01 22.26 26.40 30.44 34.38 |
119.97 145.93 170.33 193.22 214.62 |
82.16 99.39 115.38 130.19 143.84 |
0.58 0.57 0.57 0.56 0.56 |
| 240*120 | 4.0 5.0 6.0 7.0 8.0 9.0 10.0 |
27.45 34.36 40.83 47.18 53.39 59.47 65.42 |
21.78 26.97 32.05 37.03 41.91 46.69 51.36 |
175.89 214.97 252.16 287.49 320.99 352.69 382.63 |
120.89 147.08 171.74 194.92 216.66 237.00 255.99 |
0.70 0.69 0.69 0.68 0.68 0.67 0.67 |
| 300*150 | 4.0 5.0 6.0 7.0 8.0 9.0 10.0 |
34.95 43.36 51.63 59.78 67.79 75.67 83.42 |
27.43 34.03 40.53 46.93 53.22 59.40 65.49 |
279.78 343.54 404.90 463.89 520.53 574.87 626.93 |
192.99 236.12 277.28 316.52 353.88 389.42 423.16 |
0.88 0.87 0.87 0.86 0.86 0.85 0.85 |