1.HRB steel bars

HRB steel bars are ordinary hot-rolled steel bars, and their models are HRB335, HRB400, HRB500, etc., where the numbers represent the standard value of tensile strength. HRB335 steel bars are suitable for general building structures, reinforced concrete columns, reinforced concrete frames, etc.; HRB400 steel bars are suitable for buildings with earthquake resistance requirements and long-span bridges, etc.; HRB500 steel bars are suitable for large high-rise buildings, highways, special structures, etc.

2. HPB steel bars

HPB steel bars are cold-drawn steel bars and can be divided into two models: HPB300 and HPB235. The numbers represent the standard value of tensile strength. HPB steel bars should be careful not to bend excessively when using them. They are usually suitable for wire ropes, slings, rivets, etc.

3. RRB steel bars

RRB steel bars are electric welded steel bars, usually expressed as RRB400, RRB500, etc., where the number is also the standard value of tensile strength. The processing cost of RRB steel bars is relatively low, and it is suitable for columns, slabs, beams and walls in reinforced concrete structures.

4. RPS steel bars

RPS steel bars are threaded steel bars, which can be divided into two types, namely RPS400 and RPS500, which are also standard values for tensile strength. RPS steel bars are usually used in large bridges, subway tunnels, water conservancy and hydropower projects, etc.

In addition to the above common models, there are also some special models of steel bars, such as SD, LD, LG, GL, etc. These models are suitable for specific projects or special requirements. When purchasing steel bars, the corresponding steel bar models and specifications should be selected according to different project usage requirements.

In general, the correct selection of appropriate steel bar types and specifications is crucial to the quality and durability of building structures and projects. It is recommended that when purchasing steel bars, selection and judgment should be made based on engineering usage needs, project requirements and basic safety standards.