Table 3 Results of mechanical properties of reinforcement.

From: Effect of steel fiber content on fatigue performance of high-strength concrete beams

Reinforcement grade

Caliber

Yield strength /MPa

Tensile strength /MPa

Elongation δ5

Cold bending performance

HRB400

20

460.2

685.3

24%

Qualified

HPB300

10

335.0

459.9

37%

Qualified

HPB300

8

338.0

450.1

34%

Qualified