BST500 Rebar, Bar and Coil
BST500 Reinforcing Steel is a ribbed steel with Western origins, BST – Betonstahl – being a German term, while the designation 500 refers to the yield strength.
BST500 reinforcing steel is also denoted as B500S, where S stands for ribbed steel.
This steel is classified into three ductility classes: A, B, and C.
B500A has the lowest ductility, with a specific elongation of 2.5%.
B500B has a specific elongation of 5%.
B500C offers the highest ductility, at 7.5%.
We supply BST500 with the following specifications:
Nominal diameter: 8–12 mm (coil) / 6–32 mm (bar)
Yield strength: 500 N/mm²
Tensile strength: 550 N/mm²
Minimum elongation at break: 10%
Standard Manufacturing / Delivery Dimensions
| Nominal Diametermm | Permissible Deviationmm | Section Areacm2 | Linear Masskg/m |
| 6 | – | 0.283 | 0.222 |
| 8 | – | 0.503 | 0.395 |
| 10 | – | 0.785 | 0.617 |
| 12 | – | 1.130 | 0.888 |
| 14 | – | 1.540 | 1.210 |
| 16 | – | 2.010 | 1.580 |
| 18 | – | 2.540 | 1.990 |
| 20 | – | 3.140 | 2.470 |
| 22 | – | 3.800 | 2.984 |
| 25 | – | 4.910 | 3.850 |
| 28 | – | 6.160 | 4.840 |