The difference between HPB and HRB rebar:

1, the strength of the two steel bars is not the same, the strength of HPB will be higher, and belongs to the first grade steel, but HRB belongs to the second grade steel, so the strength will be lacking.

2, the two types of steel bars are not the same, HPB is a smooth steel bar, more suitable for use as a connection that can withstand power, and HRB is a ribbed steel bar, more suitable for use as a load-bearing member.

HPB(Hot Rolled Circular Steel Bar)

(HPB is the English abbreviation of Hot-rolled PlainSteel Bar), commonly known as wire rod, the diameter of 6-12 is the most common, including HPB235 and HPB300, nominal diameter of 6~22d/mm, 235 and 300 respectively refer to its corresponding yield strength.

Light round steel bar diameter 6.5 ~ 12 mm of steel bar, most rolled into rod; The diameter of 12 to 40 mm is generally 6 to 12 meters long straight strip. Grade I steel bar (Q235 steel bar) are rolled for smooth circular section, supply form is disk circle, diameter is not more than 12mm, length is 6m~12m.

In architecture, it is often used to make stirrups, board distribution bars, stirrups, wall reinforcement and so on.HRB(Hot Rolled ribbed Bar)

(Hot-rolled Ribbed -steelBar), the following number is the yield strength of the steel bar. For example, HRB500 refers to hot-rolled ribbed steel bars, the yield strength is 500MPa, and so on 335 is the yield strength of 335Mpa, 400 is 400MPa.

Secondary rebar (HRB335) is threaded rebar, diameter 12-25 is the most common. Tertiary rebar (HRB400 or more) is also threaded rebar, similar in diameter to secondary rebar, higher in strength, but the price is also high, and has been gradually promoted.

Used in beams, columns, shear walls, etc. No matter how large the diameter is, it is rarely used in civil construction, and is often used in mass concrete, such as hydraulic engineering.