Hot Rolled Reinforcing Deformed Steel Bars in 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: How soon can we receive the product after purchase?
A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.
Q4: Can you offer the third part inspection certificates ?
A4: Yes, we can apply third part inspection before shipping, such as SGS, BV, etc .
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- Q:Can steel rebars be used in water treatment facilities?
- Yes, steel rebars can be used in water treatment facilities. Steel rebars are commonly used in the construction of various structures, including water treatment facilities. They provide strength and durability to the concrete structures, ensuring their stability and longevity in the harsh environment of water treatment facilities.
- Q:Can steel rebars be used in industrial structures?
- Yes, steel rebars can be used in industrial structures. Steel rebars provide strength, durability, and stability, making them suitable for reinforcing concrete and enhancing the structural integrity of industrial buildings and facilities.
- Q:What are the different types of corrosion protection coatings for steel rebars?
- There are several types of corrosion protection coatings available for steel rebars, including epoxy coatings, zinc coatings, polyurethane coatings, and fusion bonded epoxy (FBE) coatings. These coatings provide a barrier between the steel surface and corrosive elements, preventing rust and extending the lifespan of the rebars in various environments.
- Q:What is the content ratio of the screw steel and manganese steel?
- The standard type of high manganese steel Mn13 steel and Hadfield steel, high manganese steel castings in China National Standard (GB/T5680-1998) grade: ZGMn13-1, ZGMn13-2, ZGMn13-3, ZGMn13-4, ZGMn13-5; ASTM (ASTMA128/A128M-1993) standard austenitic manganese steel casting steel are: ASTM-A (UNS-J9110.
- Q:What are the factors that can cause corrosion in steel rebars?
- The corrosion of steel rebars can be influenced by several factors. Firstly, the exposure to moisture and oxygen is a significant contributor to the corrosion process. When the steel rebar's surface comes into contact with moisture, it triggers an electrochemical reaction with the oxygen in the air, resulting in the formation of rust. This reaction is sped up in environments with high humidity or continuous water exposure, like coastal areas or submerged structures. Another factor that can cause corrosion is the presence of chloride ions. These can be found in seawater, deicing salts, or industrial environments, and they can penetrate the protective oxide layer on the steel rebar, making it more susceptible to corrosion. Once the chloride ions reach the metal surface, they break down the passive film, which allows the corrosion process to happen more quickly. The pH level of the environment is also crucial. Steel rebars are more prone to corrosion in highly acidic or alkaline conditions. Acidic environments, such as those in industrial areas with high air pollution or chemical exposure, can corrode the steel rapidly. Conversely, alkaline conditions, often found in concrete structures due to the presence of cement, can create a highly alkaline environment on the rebar's surface, leading to the breakdown of the protective oxide layer and promoting corrosion. Additionally, the presence of other impurities or contaminants can accelerate the corrosion process. For example, sulfur compounds can react with the steel rebar, forming sulfide corrosion products that weaken the structure. Similarly, exposure to certain organic compounds or acids can also contribute to corrosion. Lastly, the design and maintenance of structures can also play a role in the corrosion of steel rebars. Inadequate concrete cover or poor quality concrete can make it easier for moisture and oxygen to reach the steel, increasing the chances of corrosion. Lack of proper maintenance, such as neglecting to repair cracked or damaged concrete, can also lead to water infiltration and subsequent corrosion of the rebars. In conclusion, factors like moisture and oxygen exposure, chloride ions, pH level, presence of contaminants, and insufficient design or maintenance can all contribute to the corrosion of steel rebars. It is vital to understand and address these factors to ensure the longevity and durability of structures that incorporate steel rebars.
- Q:What is the effect of steel rebars on the electrical conductivity of concrete?
- Steel rebars have a significant effect on the electrical conductivity of concrete. As steel is a highly conductive material, the presence of steel rebars in concrete increases its overall electrical conductivity. This is due to the fact that steel rebars create a network of conductive paths throughout the concrete matrix, allowing for the easy flow of electrical current. The electrical conductivity of concrete is an important factor to consider, especially in applications where electrical grounding or conductivity is necessary. Steel rebars aid in providing a low-resistance pathway for electrical current, improving the overall electrical conductivity of the concrete structure. However, it is essential to note that the presence of steel rebars can also introduce potential challenges in certain scenarios. For instance, in electrical installations where insulation is required or in areas where electrical isolation is necessary, the conductivity provided by steel rebars may not be desired. In such cases, additional measures like insulation or isolation techniques need to be employed to prevent unwanted electrical currents from flowing through the concrete. Overall, the effect of steel rebars on the electrical conductivity of concrete is dependent on the specific requirements and applications of the concrete structure. Understanding the intended use and implementing appropriate measures accordingly will ensure that the electrical conductivity of the concrete meets the desired specifications.
- Q:Are steel rebars suitable for reinforcement in historical monuments?
- Yes, steel rebars are suitable for reinforcement in historical monuments. They provide excellent strength and durability, ensuring the structural stability of the monuments over time. Additionally, steel rebars can be easily integrated into existing structures without causing significant damage or alteration to the original design.
- Q:Can steel rebars be used in the construction of sports stadiums?
- Yes, steel rebars can be commonly used in the construction of sports stadiums. Steel rebars provide strength and stability to the concrete structures used in stadium construction, ensuring the integrity and safety of the facility.
- Q:Can steel rebars be painted or coated?
- Yes, steel rebars can be painted or coated. Painting or coating steel rebars helps to protect them from corrosion and extend their lifespan. It is a common practice in construction and reinforcement projects to apply paint or protective coatings on steel rebars to enhance their durability and resistance to environmental factors.
- Q:Are steel rebars resistant to fire?
- Yes, steel rebars are highly resistant to fire due to their high melting point and heat conductivity, making them an ideal choice for reinforcing concrete structures in fire-prone areas.
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Hot Rolled Reinforcing Deformed Steel Bars in 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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