HPB300/HRB335/HRB400/HRB500 Reinforcement DescriptionChina's steel bar grade according to the requirements of the Chinese standard GB1499.2-2018. According to the production process, there are hot rolled steel bars (H) and cold rolled steel bars (C). Hot-rolled steel bars are divided into smooth
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Steel Rebar
HPB300/HRB335/HRB400/HRB500 Reinforcement
- Date.October 31, 2024
- Category.Steel Rebar
- Keyword.Big fire special steel, high strength steel plate, steel industry supply and demand, steel suppliers
HPB300/HRB335/HRB400/HRB500 Reinforcement Description
China's steel bar grade according to the requirements of the Chinese standard GB1499.2-2018. According to the production process, there are hot rolled steel bars (H) and cold rolled steel bars (C). Hot-rolled steel bars are divided into smooth round steel bars (HPB300) and ribbed steel bars. The common brands of hot rolled ribbed steel bars are HRB400, HRBF400, HRB400E, HRBF400E, HRB500, HRBF500, HRB500E and HRB600.
HPB300 (Grade I) is a common steel bar with a diameter of 6-12mm. Commonly used in the production of stirrup, wall reinforcement, etc.
HRB335 (Grade II) is a threaded steel with a diameter of 12-25mm. Commonly used in bridges, dams, houses and other large and medium-sized concrete structures in the beam, column, shear wall. HRB400 (Grade III) is similar to HRB 335, but is stronger and more expensive. Often used in special buildings such as villas.
HRB500 (level 4) diameter 12mm, widely used in large prestressed buildings, such as roofs, crane beams, etc.
Product Parameters
Product Name Standard EN/DIN/JIS/ASTM/BS/ASME/AISI, etc. Common Round Bar Specifications 3.0-50.8 mm, Over 50.8-300mm Flat Steel Common Specifications 6.35x12.7mm, 6.35x25.4mm, 12.7x25.4mm Hexagon Bar Common Specifications AF5.8mm-17mm Square Bar Common Specifications AF2mm-14mm, AF6.35mm, 9.5mm, 12.7mm, 15.98mm, 19.0mm, 25.4mm Length 1-6meters, Size Accept Custom Diameter(mm) Hot Rolling Round Bar 25-600 Cold Rolling Square Bar 6-50.8 Hot Rolling Square Bar 21-54 Cold Rolling Hexagon Bar 9.5-65 Cold Rolling Round bar 6-101.6 Forged Rebar 200-1000 Surface Process Bright, Polished, Black Other Services Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.HPB300/HRB335/HRB400/HRB500 Reinforcement
Chemical Composition
Carbon Silicon Manganese Sulphur Phosphorus 0.25% 0.80% 1.6% 0.045% 0.045%
Mechanical Properties
Chinese Rebar Code Yield Strength (Mpa） Tensile Strength (Mpa） Carbon Content HRB400, HRBF400, HRB400E, HRBF400E 400 540 ≤0.25 HRB500, HRBF500, HRB500E, HRBF500E 500 630 ≤0.25 HRB600 600 730 ≤ 0.28
Scope of Application
Widely used in houses, bridges, roads, especially railways and other civil engineering.
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