Hot Rolled Steel Rebars GB standard
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 10000 m.t./month
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Product Description:
OKorder is offering Hot Rolled Steel Rebars GB standard 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 African, South American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.
Product Applications:
Hot Rolled Steel Rebars GB standard are ideal for structural applications and are widely used in forest region, Mines, factories and construction sites laid of the place such as temporary transport line and light motorcycles with line..
Product Advantages:
OKorder's Hot Rolled Steel Rebars GB standard are durable, strong, and wide variety of sizes.
Main Product Features:
· Premium quality
· Prompt delivery & seaworthy packing (30 days after receiving deposit)
· Can be recycled and reused
· Mill test certification
· Professional Service
· Competitive pricing
Product Specifications:
Manufacture: Hot rolled
Grade: HRB335,HRB400,HRB500
Certificates: ISO, SGS, BV, CIQ
Diameter:10mm-32mm
Packing: products are packed in coils and shipped by break bulk or containers
Grade | Technical data of the original chemical composition (%) | |||||||
C | Mn | Si | S | P | B | |||
HRB335 | ≤0.25 | ≤1.60 | ≤0.80 | ≤0.045 | ≤0.045 | >0.0008 | ||
Physics capability | ||||||||
Yield Strength(N/cm2) | Tensile Strength(N/cm2) | Elongation (%) | ||||||
≥335 | ≥490 | ≥16 | ||||||
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 | ||
Physics capability | ||||||||
Yield Strength(N/cm2) | Tensile Strength(N/cm2) | Elongation (%) | ||||||
≥400 | ≥570 | ≥14 | ||||||
FAQ:
Q1: How many tons of steel products could be loaded in containers?
A1: Usually the steel products are delivered by bulk vessel because of the large quantity and the freight. However, there are no bulk vessel enter some seaports so that we have to deliver the cargo by containers. The 6m steel product can be loaded in 20FT container, but the quantity is changed according to the size, usually from 18tons to 25tons.
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 arrange production. The normal sizes with the normal grade can be produced within one month. The specific shipping date is dependent upon international and government factors, the delivery to international main port about 45-60days.
Images:
- Q:What are the guidelines for cutting and bending steel rebars on-site?
- The guidelines for cutting and bending steel rebars on-site typically include using appropriate tools such as a rebar cutter and bender, ensuring safety measures such as wearing protective gear, following the required dimensions and angles specified in the construction plans, and using proper techniques to achieve clean and accurate cuts and bends. It is crucial to follow local building codes, manufacturer's instructions, and industry best practices to ensure structural integrity and worker safety.
- Q:What is the effect of high temperatures on steel rebars?
- Steel rebars are significantly affected by high temperatures. When exposed to high temperatures, steel rebars undergo thermal expansion, causing them to increase in size. This expansion can cause cracks or spalling in the surrounding concrete as the larger rebars exert pressure on it. Moreover, high temperatures can weaken and reduce the load-bearing capacity of steel rebars. This weakening phenomenon, known as tempering, occurs when heat compromises the structural integrity of the steel, making it less strong. Consequently, steel rebars exposed to high temperatures may experience reduced strength and become more prone to deformation or failure. Therefore, when designing structures or assessing their integrity, it is crucial to consider the impact of high temperatures on steel rebars, particularly in environments susceptible to heat or fire hazards.
- Q:What is the tensile strength of steel rebars?
- The tensile strength of steel rebars typically ranges from 400 to 600 megapascals (MPa).
- Q:What are the guidelines for reinforcing concrete slabs with steel rebars?
- The guidelines for reinforcing concrete slabs with steel rebars involve several key considerations. Firstly, it is important to determine the required amount of reinforcement based on the load that the slab will be subjected to. This load can be calculated using structural engineering principles and taking into account factors such as the intended use of the slab, the weight of any equipment or vehicles that will be placed on it, and any applicable building codes or regulations. Once the required amount of reinforcement is determined, the next step is to design the layout of the rebars. This involves spacing the rebars at specified intervals to ensure uniform distribution of the load across the slab. The spacing will depend on the thickness of the slab, with thicker slabs generally requiring a greater number of rebars. Additionally, it is important to include minimum clearances between the rebars and the edges or bottom of the slab to prevent corrosion and ensure proper concrete cover. The size and type of rebars used is also an important consideration. Commonly used types include plain round bars, deformed bars, or welded wire fabric. The diameter of the rebars and the grade of steel should be selected based on the expected load and the requirements of the project specifications or building codes. During the construction process, it is crucial to properly place and secure the rebars within the formwork to maintain their intended position. This may involve the use of chairs, spacers, or other devices to ensure proper alignment and prevent displacement. Additionally, care should be taken to avoid any damage to the rebars during the concrete pouring and finishing process. Finally, it is important to inspect and test the reinforced concrete slab to ensure that the rebars are properly installed and meet the required specifications. This may involve visual inspections, as well as non-destructive testing methods such as ultrasound or ground-penetrating radar to verify the integrity and position of the rebars. Overall, following these guidelines for reinforcing concrete slabs with steel rebars will help to ensure the structural integrity and longevity of the slab, while also meeting the necessary safety and building code requirements.
- Q:Can steel rebars be used in structures with limited construction expertise?
- Although limited construction expertise is sufficient for using steel rebars in structures, it is crucial to adhere to proper guidelines and possess a fundamental understanding of construction principles. Rebars are commonly employed to enhance the strength and durability of concrete structures. However, their accurate placement and installation play a pivotal role in guaranteeing the structural integrity of the building. While it is feasible to utilize steel rebars without extensive construction expertise, it is highly advisable to seek guidance from a professional engineer or a qualified construction expert. They can offer valuable insights regarding the suitable positioning, size, and spacing of rebars, as well as the necessary concrete mix design and curing techniques. Furthermore, it is essential to comply with local building codes and regulations, as they stipulate the minimum standards for structural safety. These codes frequently include specific requirements for the utilization of rebars in construction. By adhering to these guidelines and seeking professional advice, even individuals with limited construction expertise can effectively employ steel rebars and ensure the structural stability of their buildings.
- Q:How do steel rebars contribute to the crack control in slabs and walls?
- Steel rebars contribute to crack control in slabs and walls by providing reinforcement and increasing the structural strength of the concrete. When concrete is subjected to tensile forces, such as shrinkage, temperature variations, or external loads, it has a tendency to crack. However, the presence of steel rebars within the concrete helps to distribute these forces and resist the formation and propagation of cracks. The rebars act as reinforcement, absorbing and transferring the tensile stress, thus preventing the concrete from cracking and enhancing the overall durability and integrity of the structure.
- Q:What is the lifespan of a steel rebar in a concrete structure?
- The lifespan of a steel rebar in a concrete structure can vary depending on various factors. Generally, a properly designed and constructed concrete structure with steel reinforcement can have a lifespan of 50 to 100 years or more. One crucial factor influencing the lifespan is the quality of the concrete and its ability to protect the steel reinforcement from external elements. Concrete acts as a barrier, shielding the steel rebar from moisture, oxygen, and other potentially corrosive substances. However, if the concrete is of poor quality, contains excessive amounts of chloride or other aggressive chemicals, or is not properly cured, it can lead to the deterioration of the rebar and significantly reduce its lifespan. Another important factor is the exposure conditions to which the concrete structure is subjected. If the structure is located in a harsh environment with high levels of humidity, saltwater exposure, or industrial pollutants, it can accelerate the corrosion process and decrease the lifespan of the rebar. Proper maintenance and periodic inspection can also play a significant role in extending the lifespan of the steel rebar in a concrete structure. Regular inspections can help identify any signs of corrosion or deterioration early on, allowing for timely repairs or protective measures to be implemented. To enhance the lifespan of steel rebar, additional protective measures can be taken during construction, such as applying corrosion-resistant coatings or using stainless steel reinforcement. These measures can significantly extend the lifespan of the rebar and enhance the overall durability of the concrete structure. In summary, the lifespan of a steel rebar in a concrete structure can vary but can typically range from 50 to 100 years or more, provided that the concrete is of good quality, the exposure conditions are not too severe, and proper maintenance and protective measures are implemented.
- Q:Can steel rebars be used in structures with high resistance to moisture?
- Yes, steel rebars can be used in structures with high resistance to moisture. Steel rebars are commonly used in reinforced concrete structures, including those that are exposed to moisture such as bridges, marine structures, and underground structures. However, it is important to use properly coated or corrosion-resistant steel rebars, and ensure proper concrete cover and waterproofing measures are implemented to protect against the potential corrosion caused by moisture.
- Q:Can steel rebars be used in the construction of railway tracks?
- Yes, steel rebars can be used in the construction of railway tracks. They are commonly used as reinforcement in the concrete sleepers that support the tracks, providing additional strength and durability.
- Q:How do steel rebars enhance the load-bearing capacity of a structure?
- Steel rebars enhance the load-bearing capacity of a structure by providing reinforcement and increasing its tensile strength. They are embedded within the concrete, creating a composite material that can withstand higher loads and prevent cracking or failure under stress.
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Hot Rolled Steel Rebars GB standard
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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