OB37 Rebar, Bar and Coil
OB37 Reinforcing Steel is a carbon steel grade with a smooth profile. It is rolled in coils and hot-rolled bars, primarily used in construction, especially for manufacturing stirrups for reinforced concrete structures.
We supply OB37 with the following specifications:
Steel type: OB37
Nominal diameter: 6–22 mm (coil) / 10–40 mm (bar)
Yield strength: 255 N/mm² (coil) / 235 N/mm² (bar)
Tensile strength: 360 N/mm²
Minimum elongation at break: 25%
Standard Manufacturing / Delivery Dimensions
| Nominal Diametermm | Permissible Deviationmm | Section Areacm2 | Linear Masskg/m |
| 6 | ±0.4 | 0.283 | 0.222 |
| 8 | ±0.4 | 0.503 | 0.395 |
| 10 | ±0.4-0.5 | 0.785 | 0.617 |
| 12 | ±0.4-0.5 | 1.130 | 0.888 |
| 14 | ±0.4-0.5 | 1.540 | 1.210 |
| 16 | ±0.4-0.5 | 2.010 | 1.580 |
| 18 | ±0.4-0.5 | 2.540 | 1.990 |
| 20 | ±0.4-0.5 | 3.140 | 2.470 |
| 22 | ±0.5-0.8 | 3.800 | 2.984 |
| 25 | ±0.5-0.8 | 4.910 | 3.850 |
| 28 | ±0.5-0.8 | 6.160 | 4.840 |
| 32 | ±0.5-0.8 | 8.040 | 6.310 |
| 36 | ±0.8 | 10.20 | 7.990 |
| 40 | ±0.8 | 12.60 | 9.860 |