Circular Hollow Section
Specification to BS 6363 : 43/26 or ST 37/2 DIN 17.100
Wall Thickness
| Size (mm) | 2.0 mm | 2.5 mm | 3.0 mm | 3.5 mm | 4.0 mm | 5.0 mm | 6.0/6.3 mm | 8.0 mm | 10.0 mm | 12.5 mm |
|---|---|---|---|---|---|---|---|---|---|---|
| 20 x 20 | 1.12 | 1.32 | ||||||||
| 25 x 25 | 1.43 | 1.74 | 2.04 | |||||||
| 30 x 30 | 1.75 | 2.14 | 2.51 | |||||||
| 40 x 40 | 2.38 | 2.92 | 3.45 | 4.46 | ||||||
| 50 x 25 | 2.72 | 3.22 | 3.41 | |||||||
| 60 x 30 | 3.98 | |||||||||
| 60 x 40 | 2.98 | 3.71 | 4.39 | 5.72 | 6.97 | 8.49 | ||||
| 60 x 60 | 3.60 | 5.34 | 6.97 | 8.54 | 10.50 | 12.8 | ||||
| 70 x 70 | 6.28 | 7.46 | 10.10 | 12.50 | 15.3 | |||||
| 3" x 2" | 6.10 | 7.41 | ||||||||
| 80 x 40 | 3.64 | 5.34 | 6.97 | |||||||
| 80 x 80 | 7.22 | 8.59 | 11.70 | 14.40 | ||||||
| 90 x 50 | 6.28 | 7.46 | 10.10 | 12.50 | 15.3 | |||||
| 90 x 90 | 8.10 | 9.72 | 13.30 | 16.40 | ||||||
| 100 x 50 | 6.75 | 8.86 | 10.90 | 13.40 | 16.6 | |||||
| 100 x 60 | 7.22 | 8.59 | 11.70 | 14.40 | 17.8 | |||||
| 100 x 100 | 12.00 | 14.80 | 18.40 | 22.9 | 27.9 | |||||
| 120 x 60 | 9.72 | 13.30 | 16.40 | 20.4 | ||||||
| 120 x 80 | 8.99 | 14.80 | 18.40 | 22.9 | 27.9 | |||||
| 150 x 100 | 18.70 | 23.30 | 29.1 | 35.7 | 43.6 | |||||
| 150 x 150 | 22.70 | 28.30 | 35.4 | 43.6 | 53.4 | |||||
| 160 x 80 | 18.00 | 22.30 | 27.9 | 34.2 | 41.6 | |||||
| 180 x 180 | 34.20 | 43.0 | 53.0 | 65.2 | ||||||
| 200 x 100 | 22.70 | 28.30 | 35.4 | 43.6 | 53.4 | |||||
| 200 x 200 | 38.20 | 48.0 | 59.3 | 73.0 | ||||||
| 250 x 150 | 38.20 | 48.0 | 59.3 | 73.0 | ||||||
| 250 x 250 | 48.10 | 60.5 | 75.0 | 92.6 | ||||||
| 300 x 200 | 48.10 | 60.5 | 75.0 | 92.6 | ||||||
| 300 x 300 | 73.1 | 90.7 | 112.0 | |||||||
| 400 x 200 | 73.1 | 90.7 |