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Iron Sheets |
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Hollow Sections |
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Mild Steel Plates |
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Open Profiles |
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Wire Products |
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Galv Wire Products |
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PVC |
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Trading Items |
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Accesories |
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Round Hollow Sections
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Technical Specifications for Round Hollow Sections
| Outside Diameter D (mm) |
Wall Thickness t (mm) |
Weight kg/mtr |
Sectional Area cm2 |
Moment of inertia 1x cm4 |
Radius of Gyration 1x cm |
Modulus of Section Z cm3 |
| 20 |
0.8 |
38 |
0.48 |
0.22 |
0.68 |
0.22 |
| 20 |
1 |
0.47 |
0.6 |
0.27 |
0.67 |
0.27 |
| 20 |
1.2 |
0.57 |
0.71 |
0.31 |
0.67 |
0.31 |
| 20 |
15 |
0.69 |
0.87 |
0.38 |
0.66 |
0.38 |
| 25 |
2 |
0.89 |
1.13 |
0.46 |
0.64 |
0.46 |
| 25 |
0.8 |
0.48 |
0.61 |
0.45 |
0.86 |
0.36 |
| 25 |
1 |
0.59 |
0.75 |
0.54 |
0.85 |
0.95 |
| 25 |
1.2 |
0.7 |
0.9 |
0.64 |
0.84 |
0.51 |
| 25 |
1.5 |
0.87 |
1.11 |
0.77 |
0.83 |
0.61 |
| 25 |
2 |
1.13 |
1.45 |
0.96 |
0.82 |
0.77 |
| 32 |
0.8 |
0.62 |
0.78 |
0.96 |
1.1 |
1.6 |
| 32 |
1 |
0.77 |
0.97 |
1.17 |
1.1 |
0.73 |
| 32 |
1.2 |
0.91 |
1.16 |
1.38 |
1.09 |
0.86 |
| 32 |
1.5 |
1.13 |
1.44 |
1.68 |
1.08 |
1.05 |
| 32 |
2 |
1.48 |
1.89 |
2.13 |
1.06 |
1.33 |
| 32 |
2.5 |
1.82 |
2.32 |
2.54 |
1.05 |
1.59 |
| 42 |
1.2 |
1.22 |
1.55 |
4.9 |
1.66 |
1.51 |
| 42 |
1.5 |
1.51 |
1.92 |
3.99 |
1.44 |
1.89 |
| 42 |
2 |
2.06 |
5.13 |
1.42 |
1.63 |
3.07 |
| 42 |
3 |
3.12 |
3.98 |
7.62 |
1.38 |
3.61 |
| 50 |
1.2 |
1.44 |
1.84 |
5.48 |
1.73 |
2.19 |
| 50 |
1.5 |
1.79 |
2.29 |
6.73 |
1.72 |
2.69 |
| 50 |
2 |
2.37 |
3.02 |
8.7 |
1.7 |
3.48 |
| 50 |
2.5 |
2.93 |
3.73 |
10.55 |
1.68 |
4.22 |
| 50 |
3 |
3.48 |
4.43 |
12.28 |
1.67 |
4.91 |
| 63 |
1.2 |
1.83 |
2.33 |
11.13 |
2.19 |
3.53 |
| 63 |
1.5 |
2.28 |
2.9 |
13.7 |
2.18 |
4.35 |
| 63 |
2 |
3.01 |
3.83 |
17.85 |
0.16 |
5.67 |
| 63 |
2.5 |
3.73 |
4.75 |
21.78 |
2.14 |
6.91 |
| 63 |
3 |
4.4 |
5.65 |
25.51 |
2.12 |
8.1 |
| 76 |
2 |
3.65 |
4.65 |
31.85 |
3.62 |
8.38 |
| 76 |
2.5 |
4.53 |
5.77 |
39.03 |
2.6 |
10.27 |
| 76 |
3 |
5.4 |
6.88 |
45.91 |
2.58 |
12.08 |
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Roofings Limited tubes are produced by application of tensile forces
on steel skelp with the help of high frequency induction welding conforming to
JIS G 3444:1993.
Roofings Limited is equipped with a new state of the art Tube mill
with an installed production capacity of 24000 metric tonnes per annum.
This mill has the capacity to produce tubes up to 220 mm Diameter (8.6 inches)
and a thickeness ranging from 2mm to 6mm with the option to produce to
customer required length of 12 meters maximum
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