HoT Rolled Deformed D-BAR SD400 HRB400
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 50000 m.t./month
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Product Description:
OKorder is offering HoT Rolled Deformed D-BAR SD400 HRB400 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 European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.
Product Applications:
HoT Rolled Deformed D-BAR SD400 HRB400are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.
Product Advantages:
OKorder's HoT Rolled Deformed D-BAR SD400 HRB400 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:
Standard | GB | HRB400 | |
Diameter | 6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm, 22mm,25mm,28mm,32mm,36mm,40mm,50mm | ||
Length | 6M, 9M,12M or as required | ||
Place of origin | Hebei, China mainland | ||
Advantages | exact size, regular package, chemical and mechanical properties are stable. | ||
Type | Hot rolled deformed steel bar | ||
Brand name | DRAGON | ||
Chemical Composition: (Please kindly find our chemistry of our material based on HRB500 as below for your information)
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 |
Usage and Applications of HRB400 Deformed Steel Bar:
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..
Packaging & Delivery of HRB400 Deformed Steel Bar:
Packaging Detail: products are packed in bundle and then shipped by container or bulk vessel, deformed bar is usually naked strapping delivery, when storing, please pay attention to moisture proof. The performance of rust will produce adverse effect.
Each bundle weight: 2-3MT, or as required
Payment term: TT or L/C
Delivery Detail: within 45 days after received advanced payment or LC.
Label: to be specified by customer, generally, each bundle has 1-2 labels
Trade terms: FOB, CFR, CIF
FAQ:
Q1: Why buy Materials & Equipment from OKorder.com?
A1: All products offered byOKorder.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.
Images:
- Q:What is the effect of steel rebars on the durability of concrete structures?
- Steel rebars have a significant positive effect on the durability of concrete structures. By reinforcing the concrete, rebars enhance its tensile strength and resistance to cracking and deformation. This added strength helps to prevent structural failures and increases the longevity of the concrete, making it more resistant to environmental factors such as corrosion, earthquakes, and heavy loads. Overall, steel rebars play a crucial role in ensuring the durability and long-term stability of concrete structures.
- Q:What are the advantages of using epoxy-coated stainless steel rebars?
- Epoxy-coated stainless steel rebars offer several advantages compared to traditional steel rebars. Firstly, the epoxy coating provides excellent corrosion resistance, protecting the rebar from moisture and chemicals present in the surrounding environment. This ensures the longevity and durability of the structure, reducing maintenance and repair costs over time. Additionally, stainless steel rebars possess high strength and are resistant to fire, making them suitable for use in harsh and high-temperature conditions. The epoxy coating also enhances the bond between the rebar and the concrete, improving the overall structural integrity. Lastly, the use of stainless steel rebars reduces the risk of staining or rust bleeding, resulting in a more aesthetically pleasing end product.
- Q:What are the guidelines for ensuring proper concrete cover over steel rebars?
- To ensure the long-term durability and performance of reinforced concrete structures, it is crucial to have the appropriate concrete cover over steel rebars. Here are some tips to achieve the correct cover: 1. Compliance with building codes and specifications is essential. These regulations establish minimum requirements for concrete cover over steel rebars to ensure structural integrity, fire resistance, and corrosion resistance. It is important to consult and adhere to the applicable codes and specifications for your project. 2. Determine the required concrete cover based on factors such as environmental conditions, exposure to aggressive agents, structural design, and reinforcement type. Structural engineers typically assess these factors to determine the necessary cover and protect the rebars adequately. 3. Carefully select the concrete mix design to achieve the desired strength, durability, and workability. Consider factors like the quality and size of aggregates, cement content, water-to-cement ratio, and use of additives or admixtures. A well-designed mix will promote proper bonding and sufficient protection of the rebars. 4. Maintain proper construction practices. This includes using appropriate formwork and reinforcement placement techniques, ensuring correct concrete placement, compaction, and curing. Proper positioning and secure tying of the rebars are crucial to maintain the required cover and prevent displacement during concrete pouring. 5. Regular inspections and monitoring during construction are necessary. Check the placement of reinforcement, cover thickness, and overall concrete quality. Address and rectify any deviations from the specified requirements promptly. 6. Protect against corrosion. Adequate concrete cover helps prevent corrosion, but additional measures can enhance durability. Consider using corrosion-resistant rebars, applying epoxy coatings, or utilizing corrosion inhibitors to further protect the reinforced concrete structure. 7. Document and maintain records of the construction process, including reinforcement placement, cover thickness, and any modifications made. This documentation will be useful for future reference, maintenance, and repairs. By following these guidelines, you can ensure the appropriate concrete cover over steel rebars, resulting in durable and structurally sound reinforced concrete structures. It is always advisable to consult with structural engineers and construction professionals to meet specific project requirements and comply with local building codes and regulations.
- Q:Why is the difference between left and right threads? What's the difference?
- The design direction of rotation screw steel, steel and related crystal. Due to crystal dislocation, under the tensile stresses along a surface slip between the crystal, for single crystal, slip surface and tensile stress direction angle of about 45, at the same time, the crystal will around the stress-induced rotation axis. According to the characteristics of steel, the surface of the reinforcement design into a spiral shape, can effectively improve the strength of steel, save materials, reduce the weight of the building. Of course, there are combined with concrete between considerations.
- Q:What is the role of steel rebars in preventing cracks in concrete?
- Steel rebars play a crucial role in preventing cracks in concrete by providing tensile strength. As concrete is strong in compression but weak in tension, rebars act as reinforcement, absorbing and distributing the tensile forces that would otherwise cause cracks. By resisting the tension, rebars reinforce the concrete structure, enhance its durability, and ensure it remains stable and crack-resistant over time.
- Q:How do steel rebars prevent concrete from cracking?
- Steel rebars prevent concrete from cracking by providing tensile strength to the structure. When concrete is subjected to external forces or loads, it tends to crack due to its low tensile strength. However, by reinforcing it with steel rebars, the concrete becomes more resistant to cracking. The rebars act as structural reinforcement, absorbing the tensile forces and distributing them throughout the concrete, preventing cracks from forming and ensuring the overall stability and durability of the structure.
- Q:What are the different methods of joining steel rebars in a structure?
- There are several methods for joining steel rebars in a structure, such as lap splicing, mechanical splicing, and welded splicing. Lap splicing involves overlapping the rebars and tying them together with wire or steel ties. Mechanical splicing uses mechanical devices like couplers or sleeves to connect the rebars together. Welded splicing involves welding the rebars together using heat and pressure to create a strong bond. Each method has its advantages and is used based on the specific requirements of the structure and the engineer's recommendations.
- Q:Are there any specific guidelines for handling and storing steel rebars?
- Yes, there are specific guidelines for handling and storing steel rebars to ensure their quality and safety. Some of the key guidelines include: 1. Proper handling: Steel rebars should be handled with care to avoid any damage or bending. They should be lifted using appropriate equipment and not dragged or thrown. 2. Storage conditions: Rebars should be stored in a clean, dry, and well-ventilated area to prevent rusting and corrosion. They should be kept off the ground and away from moisture, chemicals, and direct sunlight. 3. Stacking: Rebars should be stacked in a way that ensures stability and prevents any deformation. They should be placed on flat surfaces and stacked in layers with wooden or rubber separators to avoid direct contact between rebars. 4. Labelling: Each bundle of rebars should be properly labeled with relevant information such as size, grade, and quantity for easy identification and inventory management. 5. Inspection: Regular inspections should be conducted to check for any signs of damage, rust, or corrosion. Damaged or corroded rebars should be discarded or repaired before use. Adhering to these guidelines is crucial to maintain the quality and integrity of steel rebars, ensuring their suitability for construction purposes.
- Q:How are steel rebars protected from concrete spalling?
- Steel rebars are protected from concrete spalling through the use of various methods and techniques. One common method is to provide a concrete cover over the rebars. This means that the rebars are embedded within the concrete structure, ensuring that they are not directly exposed to external elements or conditions that could cause spalling. The thickness of the concrete cover is typically specified in construction codes and standards to ensure adequate protection. Another way to protect steel rebars from concrete spalling is by using corrosion inhibitors. These inhibitors are typically added to the concrete mix during the construction process. They work by reducing the corrosion rate of the steel rebars, thereby protecting them from spalling caused by rusting and corrosion. In addition to concrete cover and corrosion inhibitors, proper concrete mix design is crucial in protecting steel rebars. The use of high-quality concrete with appropriate water-cement ratio, sufficient strength, and proper curing greatly enhances the resistance of the concrete against spalling. This ensures that the rebars remain securely embedded within the concrete structure and are not exposed to moisture or other deteriorating agents that could lead to spalling. Furthermore, proper construction practices such as adequate compaction of concrete, proper placement and alignment of rebars, and effective waterproofing measures also contribute to the protection of steel rebars from concrete spalling. These practices help to minimize the chances of moisture ingress and the formation of cracks or voids that could expose the rebars to the risk of spalling. Overall, a combination of concrete cover, corrosion inhibitors, proper concrete mix design, and appropriate construction practices are essential in protecting steel rebars from concrete spalling. By implementing these measures, the durability and longevity of concrete structures can be significantly improved.
- Q:What are the international standards for steel rebars?
- The international standards for steel rebars are defined by the International Organization for Standardization (ISO) and the American Society for Testing and Materials (ASTM). These standards encompass various factors such as the composition, mechanical properties, dimensions, and tolerances of steel rebars, ensuring their quality and performance in construction projects worldwide.
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HoT Rolled Deformed D-BAR SD400 HRB400
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 50000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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