1. HRB335 steel bar

HRB335 steel bar is a common steel bar model, suitable for use as concrete reinforcement material in the construction of large buildings, bridges, tunnels, etc. Its diameter range is 6-40mm, the standard length is 9 meters or 12 meters, and the allowable deviation is ±50mm. Common specifications are 6, 8, 10, 12, 14, 16, 18, 20, 22, 25, 28, 32, 36, 40mm, etc.

2. HRB400 steel bar

HRB400 steel bar is a high-strength steel bar model, suitable for use in the construction of large buildings, bridges, tunnels, etc., as the main concrete reinforcement material. Its diameter range is 6-40mm, the standard length is 9 meters or 12 meters, and the allowable deviation is ±50mm. Common specifications are 6, 8, 10, 12, 14, 16, 18, 20, 22, 25, 28, 32, 36, 40mm, etc.

3. HRB500 steel bar

HRB500 steel bar is a high-strength steel bar model, suitable for use in the construction of special buildings, projects, etc., as the main concrete reinforcement material. Its diameter range is 6-40mm, the standard length is 9 meters or 12 meters, and the allowable deviation is ±50mm. Common specifications are 6, 8, 10, 12, 14, 16, 18, 20, 22, 25, 28, 32, 36, 40mm, etc.

4. Other commonly used steel bar models

In addition to the common HRB335, HRB400, and HRB500 steel bars, there are also other commonly used steel bar models, such as HPB235, HPB300, HRBF335, HRBF400, HRBF500, etc. Different types of steel bars have slightly different specifications, but they should all meet the corresponding national standards and quality requirements.