4E DG 164 is a steel grade 3 steel, DG steel, E is what mean
Individual numbers 3, 4 and 5 indicate strength levels of steel bars 335MPa, 400MPa and 500MPa, characters 3E, 4E and 5E, respectively, and mark the corresponding strength levels of seismic reinforcement. C3, C4 and C5 mark fine grained reinforcing steel bars of corresponding strength grade, and C3E, C4E and C5E identify fine grain reinforced steel bars of corresponding strength grade.
4 means HRB400, that is, hardness.E stands for seismic reinforcement.DG is da-gang.16 is the diameter 16mm.
E is the mark of the steel band seismic! Commonly known as: with E steel, or earthquake resistant steel!
