The difference between round steel and other rebar:

1, the appearance is not the same, the round steel appearance is round, no grain no rib, other steel surface appearance is engraved or rib, so as to cause the adhesion of the round steel and concrete is small, and the adhesion of other steel and concrete is large.

2, the composition is not the same, round steel (grade A steel) belongs to ordinary low carbon steel, other rebar is mostly alloy steel.

3, the strength is not the same, the strength of the round steel is low, the strength of other steel is high, that is, the diameter of the same round steel compared with other steel bars, the round steel can withstand the tension is smaller than other steel bars, but the plasticity of the round steel is stronger than other steel bars, that is, the round steel has a large deformation before being pulled, and the deformation of other steel bars is much smaller before being pulled.