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Iron Round Bar
Weight Calculation
How is the weight of Iron Round Bar calculated?
Round bar weight (kg/m) = π / 4 × diameter² × density / 1000. One metre of Ø30 mm Iron Round Bar weighs about 5.553 kg.
What is the density of Iron?
The density of Iron is taken as 7.86 g/cm³ (7,860 kg/m³).
Iron Round Bar weight table for standard sizes
| Size (mm) | Weight (kg/m) |
|---|---|
| Ø10 | 0.617 |
| Ø20 | 2.468 |
| Ø30 | 5.553 |
| Ø50 | 15.43 |
| Ø80 | 39.49 |
| Ø100 | 61.70 |
How accurate is the calculated weight?
Values are theoretical; production tolerances and corner radii can make the actual weight differ by 2–5%.