B500B
B500B is the abbreviation for highly ductile reinforcing steel , which corresponds to the German DIN EN ISO 17660 and the Swiss SIA 262. Highly ductile reinforcing steel B500B has the material number 1.0439.
The abbreviation means: B = reinforcing steel, 500 = yield strength in N / mm² , B = ductility class B.
Physical Properties
A B500B reinforcing steel is characterized by its higher ductility and tensile strength compared to the B500A . According to the standard, these structural steels must have the following properties:
| B500A | B500B | |
|---|---|---|
| Yield strength f yk | 500 N / mm² | 500 N / mm² |
| Tensile strength f tk | ≥ 525 N / mm² | ≥ 540 N / mm² |
| Yield strength ratio f tk / f yk | ≥ 1.05 | ≥ 1.08 |
| Total elongation at maximum load ε uk | 2.5% | 5.0% |