Preferred dimensions, mass and dimensional tolerances of hot rolled hexagon bars
| Width across flats $ s $ , in $ \mathrm{mm} $ | Limit deviation, in $ \mathrm{mm} $ | Mass per unit length $ M $ , in $ \mathrm{kg/m} $ | Cross-sectional area $ A $ , in $ \mathrm{cm^2} $ |
|---|---|---|---|
| 13 | ±0.4 | 1.15 | 1.46 |
| 14 | ±0.4 | 1.33 | 1.70 |
| 15 | ±0.4 | 1.53 | 1.95 |
| 16 | ±0.5 | 1.74 | 2.22 |
| 17 | ±0.5 | 1.96 | 2.50 |
| 18 | ±0.5 | 2.20 | 2.81 |
| 19 | ±0.5 | 2.46 | 3.13 |
| 20.5 | ±0.5 | 2.86 | 3.64 |
| 22.5 | ±0.5 | 3.44 | 4.38 |
| 23.5 | ±0.5 | 3.75 | 4.78 |
| 25.5 | ±0.6 | 4.42 | 5.63 |
| 28.5 | ±0.6 | 5.52 | 7.03 |
| 31.5 | ±0.6 | 6.75 | 8.59 |
| 33.5 | ±0.6 | 7.63 | 9.72 |
| 35.5 | ±0.8 | 8.56 | 10.9 |
| 37.5 | ±0.8 | 9.56 | 12.2 |
| 39.5 | ±0.8 | 10.6 | 13.5 |
| 42.5 | ±0.8 | 12.3 | 15.6 |
| 47.5 | ±0.8 | 15.3 | 19.5 |
| 52 | ±1 | 18.4 | 23.4 |
| 57 | ±1 | 22.1 | 28.1 |
| 62 | ±1 | 26.1 | 33.3 |
| 67 | ±1 | 30.5 | 38.9 |
| 72 | ±1 | 35.2 | 44.9 |
| 78 | ±1 | 41.4 | 52.7 |
| 83 | ±1.3 | 46.8 | 59.7 |
| 88 | ±1.3 | 52.6 | 67.1 |
| 93 | ±1.3 | 58.8 | 74.9 |
| 98 | ±1.3 | 65.3 | 83.2 |
| 103 | ±1.5 | 72.1 | 91.9 |
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