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Cobalt Hollow Section
Weight Calculation
How is the weight of Cobalt Hollow Section calculated?
Hollow section weight is the outer cross-section minus the hollow core: (height × width − (height − 2 × wall) × (width − 2 × wall)) × length × density. One metre of 40 × 40 × 3 mm Cobalt Hollow Section weighs about 3.952 kg.
What is the density of Cobalt?
The density of Cobalt is taken as 8.9 g/cm³ (8,900 kg/m³).
Cobalt Hollow Section weight table for standard sizes
| Size (mm) | Weight (kg/m) |
|---|---|
| 20 × 20 × 2 | 1.282 |
| 30 × 30 × 2 | 1.994 |
| 40 × 40 × 3 | 3.952 |
| 50 × 50 × 3 | 5.020 |
| 60 × 40 × 3 | 5.020 |
| 100 × 100 × 5 | 16.91 |
How accurate is the calculated weight?
Values are theoretical; production tolerances and corner radii can make the actual weight differ by 2–5%.