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Cobalt Round Bar
Weight Calculation
How is the weight of Cobalt Round Bar calculated?
Round bar weight (kg/m) = π / 4 × diameter² × density / 1000. One metre of Ø30 mm Cobalt Round Bar weighs about 6.288 kg.
What is the density of Cobalt?
The density of Cobalt is taken as 8.9 g/cm³ (8,900 kg/m³).
Cobalt Round Bar weight table for standard sizes
| Size (mm) | Weight (kg/m) |
|---|---|
| Ø10 | 0.699 |
| Ø20 | 2.795 |
| Ø30 | 6.288 |
| Ø50 | 17.47 |
| Ø80 | 44.71 |
| Ø100 | 69.87 |
How accurate is the calculated weight?
Values are theoretical; production tolerances and corner radii can make the actual weight differ by 2–5%.