Round steel and rebar look similar, but they are actually different steels, so how do we choose? So what's the difference?

The name of the first grade steel bar is a diagonal line in the middle of the oval, which is round steel; The name of the secondary steel bar is the following of the first grade steel bar, plus a horizontal line, which is rebar, and the third grade steel bar is the bottom of the two diagonal lines plus a horizontal line, which is rebar, but a higher level.

One:Different appearance

From the appearance point of view, round steel is light round, there is no line on the surface, and it is very smooth and metallic. But rebar is embossed or ribbed, such steel can ensure the combination of steel and concrete, can ensure its adhesion. Therefore, the scope of use of these two kinds of steel is also different from the actual application.

Two:Different ingredients

In fact, the composition of each kind of steel will be different, and the round steel we use in daily life is actually a grade 1 steel, which is an ordinary type of low carbon steel. The steel bar is generally alloy steel, the composition is also more complex, and to ensure a certain strength.

Three:The intensity is different

Relatively speaking, round steel is slightly less strong, but round steel can withstand less tension than other steel bars, and it is stronger. Therefore, it is recommended that when selecting steel, it is still necessary to pay attention to the application field and the specific performance of each steel, so as to ensure the reliability of the later application.

Four:Different types of steel

Round steel (HPB235) is carbon steel, steel is Q235; Rebar is low alloy steel, HRB335 steel bar is 20MnSi(20 manganese silicon); HRB400 grade rebar is 20MnSiV or 20MnSiNb or 20MnTi, etc.