In HRB600, the “H” denotes hot-rolled, the ‘R’ denotes ribbed, the “B” denotes reinforcing bar, and 600 indicates a standard yield strength of 600 MPa. Compared to HRB400 grade steel bars, HRB600 grade steel bars offer 39% higher strength. Under identical load-bearing conditions, this significantly reduces the required reinforcement ratio and decreases steel consumption.