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23

2022

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03

Introduction of Rebar Types

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Rebar in the steel market - has always been a hot topic for us. Today, the editor will explain to you the relevant knowledge about the types of rebar.

First of all, the types of rebar have two major directions, namely straight rebar (straight screw) and coil screw. The so-called straight screw is a rebar in the shape of a straight strip. As the name suggests, the coiled screw is the coiled steel. The following editor will briefly introduce the basic knowledge of straight rebar and coil screw.

1. Straight rebar
Straight rebar is the type of rebar we use. Its grades are divided into three types: HRB335, HRB400E and HRB500E. Among them, HRB335 rebar is also known as secondary rebar. As early as around 2011, it has been eliminated and stopped production and use. There are also HRB400 and HRB500, which represent the third-grade rebar and the fourth-grade rebar respectively. The method of expressing the seismic rebar is to add E after the grade, such as: HRB400E (three-grade seismic rebar) HRB500E (fourth-grade seismic rebar), in In recent years, the popularization and use of medium-number seismic rebar is common. The lengths of common straight rebars are 9 meters and 12 meters respectively. Its surface is ribbed. Ribs can be divided into three types: spiral, herringbone, and crescent.

Second, the snail
Coiled screw, as the name suggests, is a coiled ribbed rebar. Its common diameters are 8mm and 10mm. The difference from the straight screw is that the coil screw can be freely cut according to the length of the user. Common screw materials are HRB400 and HRB500. That is, what we call the third-level coil snail and the fourth-level coil snail.

As my country is in the historical stage of rapid urbanization, the demand for steel is relatively large. As the main construction steel, the consumption of rebar has always occupied a large proportion of domestic steel production. In the future development, the prospect of rebar is still not to be underestimated.