Reinforcing Deformed Steel Bars with Grade HRB400-HRB500
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 20000 m.t./month
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Specification
OKorder is offering high quality Hot Rolled Rebars at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to Africa, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.
Product Applications:
Deformed bar is widely used in buildings, bridges, roads and other engineering construction. Big to highways, railways, bridges, culverts, tunnels, public facilities such as flood control, dam, small to housing construction, beam, column, wall and the foundation of the plate, deformed bar is an integral structure material. With the development of world economy and the vigorous development of infrastructure construction, real estate, the demand for deformed bar will be larger and larger.
Product Advantages:
OKorder's Hot Rolled Rebars are durable, strong, and resist corrosion.
Main Product Features:
· Premium quality
· Prompt delivery & seaworthy packing (30 days after receiving deposit)
· Corrosion resistance
· Can be recycled and reused
· Mill test certification
· Professional Service
· Competitive pricing
Product Specifications:
Manufacture: Hot rolled
Grade: HRB400 – HRB500
Certificates: ISO, SGS, BV, CIQ
Length: 6m – 12m, as per customer request
Packaging: Export packing, nude packing, bundled
Grade | Technical data of the original chemical composition (%) | ||||||
C | Mn | Si | S | P | V | ||
HRB400 | ≤0.25 | ≤1.60 | ≤0.80 | ≤0.045 | ≤0.045 | 0.04-0.12 | |
Physical capability | |||||||
Yield Strength (N/cm²) | Tensile Strength (N/cm²) | Elongation (%) | |||||
≥400 | ≥570 | ≥14 | |||||
Theoretical weight and section area of each diameter as below for your information:
Diameter(mm) | Section area (mm²) | Mass(kg/m) | Weight of 12m bar(kg) |
6 | 28.27 | 0.222 | 2.664 |
8 | 50.27 | 0.395 | 4.74 |
10 | 78.54 | 0.617 | 7.404 |
12 | 113.1 | 0.888 | 10.656 |
14 | 153.9 | 1.21 | 14.52 |
16 | 201.1 | 1.58 | 18.96 |
18 | 254.5 | 2.00 | 24 |
20 | 314.2 | 2.47 | 29.64 |
22 | 380.1 | 2.98 | 35.76 |
25 | 490.9 | 3.85 | 46.2 |
28 | 615.8 | 4.83 | 57.96 |
32 | 804.2 | 6.31 | 75.72 |
36 | 1018 | 7.99 | 98.88 |
40 | 1257 | 9.87 | 118.44 |
50 | 1964 | 15.42 | 185.04 |
FAQ:
Q1: Why buy Materials & Equipment from OKorder.com?
A1: All products offered by OKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.
Q2: How do we guarantee the quality of our products?
A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.
Q3: Can you offer the third part inspection certificates ?
A3: Yes, we can apply third part inspection before shipping, such as SGS, BV, etc .
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- Q: Can steel rebars be bent on-site to fit specific shapes?
- Yes, steel rebars can be bent on-site to fit specific shapes.
- Q: How do steel rebars affect the fire resistance of concrete structures?
- Concrete structures can greatly increase their ability to withstand fire by incorporating steel rebars. These rebars serve as reinforcement, providing extra strength and stability to the structure and enabling the concrete to endure the intense heat of a fire. The fire resistance of concrete structures primarily relies on the fact that concrete has low thermal conductivity. When exposed to high temperatures, concrete undergoes spalling, where the outer layer breaks off due to the rapid expansion of trapped water. However, the presence of steel rebars helps prevent spalling by holding the concrete together and preventing it from disintegrating. Moreover, steel rebars have a higher melting point than concrete. This means that even when exposed to extreme heat, the rebars maintain their strength and integrity. Consequently, the overall structural stability of the concrete structure remains intact, even in the presence of fire. Steel rebars also act as a heat sink, absorbing and dissipating heat away from the surrounding concrete. This dissipation of heat prevents the formation and spread of localized hotspots throughout the structure, thereby reducing the risk of structural failure. To further enhance the fire resistance of concrete structures, specialized types of steel rebars, known as fire-resistant or fire-rated rebars, can be utilized. These rebars are specifically designed to withstand high temperatures for extended periods without losing their strength. They are often coated with materials such as epoxy or intumescent coatings, which offer additional protection against fire. In conclusion, steel rebars play a vital role in improving the fire resistance of concrete structures. Their presence enhances the overall structural stability, minimizes spalling, dissipates heat, and provides additional strength to withstand the intense heat generated during a fire.
- Q: Can steel rebars be used in hospital construction?
- Yes, steel rebars can be used in hospital construction.
- Q: How do steel rebars contribute to the overall occupant comfort of a building?
- Steel rebars contribute to the overall occupant comfort of a building by providing structural strength and stability. They reinforce the concrete, ensuring that the building can withstand various forces such as wind, earthquakes, and heavy loads. This enhances the safety of the occupants, assuring them of a secure and stable structure. Additionally, steel rebars help in maintaining the integrity of the building over time, reducing the risk of cracks or structural failures that could negatively impact occupant comfort.
- Q: How do steel rebars affect the crack width in reinforced concrete?
- Steel rebars can help to control and limit crack width in reinforced concrete structures. The presence of rebars provides reinforcement and increases the tensile strength of the concrete. This enhanced strength helps to distribute and redistribute the stresses caused by loads, reducing the likelihood and width of cracks forming in the concrete. Additionally, the rebars act as a barrier, preventing cracks from propagating and limiting their width.
- Q: Do steel rebars affect the overall aesthetics of a building?
- Yes, steel rebars can affect the overall aesthetics of a building. While they are primarily used for structural purposes and are typically hidden within the concrete, they can sometimes be visible in areas such as balconies, staircases, or exposed beams. In such cases, the appearance of the steel rebars can impact the visual appeal of the building. However, with proper design and execution, it is possible to incorporate steel rebars in a way that enhances the aesthetics, such as through decorative patterns or finishes.
- Q: Are steel rebars eco-friendly?
- Steel rebars are not inherently eco-friendly as they are made from mined iron ore and have a significant carbon footprint during the manufacturing process. However, they can be considered more sustainable compared to alternatives like concrete rebars as steel can be recycled indefinitely, reducing the need for new production and minimizing waste. Additionally, steel rebars provide strength and durability to structures, leading to longer lifespans and potentially reducing the environmental impact associated with frequent repairs and replacements.
- Q: How do steel rebars bond with concrete?
- Steel rebars bond with concrete through a process called mechanical interlocking, where the rough surface of rebars provides a strong grip with the concrete. Additionally, during the curing process, a chemical reaction occurs between the alkaline environment of concrete and the iron surface of the rebars, forming a layer of iron oxide that further enhances the bond strength.
- Q: How many kinds of steel are needed to build the building?
- Definition: Steel (Steel): material of various shapes, sizes, and properties required by pressure processing for ingots, billets, or steels.
- Q: Are steel rebars susceptible to magnetism?
- Yes, steel rebars are susceptible to magnetism as they are typically made of carbon steel, which contains iron. Iron is a ferromagnetic material, meaning it can be magnetized and exhibits magnetic properties. Therefore, steel rebars can be attracted to magnets and are considered to be magnetic.
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Reinforcing Deformed Steel Bars with Grade HRB400-HRB500
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 20000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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