TMT bar deformed bar reinforcing steel bar steel rebar
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 200000 m.t./month
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Specification
Standard:
ASTM,GB
Technique:
Hot Rolled,Cold Drawn,Extruded
Shape:
rebar
Surface Treatment:
Black
Steel Grade:
HRB400,HRB500
Thickness:
4-50
Length:
1-12m or customized
Net Weight:
0.099-15.42kg/m
Packaging:
naked and in bundles tied with wire rod or steel strip
We supply ms equal & unequal angle bar, channel bar,jis channel, upn, steel i beam,h beam, ipe, ipeaa, steel sheet pile, flat bar, hollow section, tmt bar, wire rod, binding wire, wire mesh, hrc, CRC, gi coil, ppgi, roofing sheet, chequered coil & plates, medium plate, scaffolding systems, prefabricated container houses etc. Also for metal & steel processing.
If you are in the market for any steel products, please feel free to contact us.
- Q: How do steel rebars affect the overall crack control of concrete?
- Steel rebars play a crucial role in controlling cracks in concrete structures. The incorporation of steel rebars in concrete significantly enhances its tensile strength, which is otherwise quite low. When concrete undergoes tensile forces, such as those caused by drying shrinkage, temperature changes, or applied loads, it tends to crack. However, the presence of steel rebars helps to mitigate and control these cracks. Rebars act as reinforcement, providing additional strength to the concrete. They resist the tensile forces, preventing the concrete from easily cracking. When tensile forces are applied to the reinforced concrete, the rebars carry a significant portion of the load, reducing the stress on the concrete and minimizing crack formation. Moreover, the bond between the steel rebars and the concrete is integral in crack control. The bond ensures that the rebars effectively transfer the tensile forces to the concrete, enhancing its overall crack resistance. This bond also helps in distributing the applied loads evenly and reducing the risk of localized cracking. Furthermore, steel rebars can also be used to control crack widths in concrete. By specifying the appropriate diameter, spacing, and arrangement of the rebars, engineers can influence the crack widths to meet design requirements. The rebars act as barriers, limiting the width of cracks that may occur, thus maintaining the structural integrity of the concrete. In summary, steel rebars have a positive impact on the overall crack control of concrete. They enhance the tensile strength of concrete, resist tensile forces, distribute applied loads, and limit crack widths. By incorporating steel rebars in concrete, engineers can ensure the durability and longevity of concrete structures by effectively controlling crack formation and minimizing their negative consequences.
- Q: Can steel rebars be used for both residential and commercial construction?
- Yes, steel rebars can be used for both residential and commercial construction. Steel rebars are commonly used to reinforce concrete structures, such as foundations, walls, and beams, in a wide range of construction projects, including both residential and commercial buildings. The use of steel rebars provides strength and durability to the concrete, ensuring the integrity of the structure in both types of construction.
- Q: What is the difference between three - grade steel and two - grade steel?
- Two grade steel thread subway project a little more, three grade steel room building project a little more. In addition, the original use of two steel more, and now are promoting the new three grade steel, concrete structure among the application has been very common. Three grade thread steel used in beam column main reinforcement is more, two grade thread steel used in more stirrups, recently, the state also issued expressly eliminated HRB335 two grade steel and HPB235 high wire.
- Q: What is the weight of steel rebars per meter or foot?
- The weight of steel rebars per meter or foot can vary based on the size and type of rebar utilized. Standard steel rebars are typically accessible in different diameters, ranging from 6mm to 50mm. By multiplying the cross-sectional area of the rebar (measured in square meters or square feet) by the density of steel (approximately 7850 kilograms per cubic meter or 0.2836 pounds per cubic inch), one can ascertain the weight per meter or foot. To provide an example, let's examine a standard rebar with a diameter of 10mm. The cross-sectional area can be determined using the formula for the area of a circle (πr²), where r represents the radius of the rebar (5mm in this case). Assuming the unit of measurement is a meter, the cross-sectional area would equal π(0.01m)² = 0.000314 square meters. By multiplying this value by the density of steel, we arrive at 0.000314m² * 7850kg/m³ = 2.464 kilograms per meter. Similarly, if we were to calculate the weight in pounds per foot, we would convert the density of steel to pounds per cubic foot (approximately 490 pounds per cubic foot) and multiply the cross-sectional area by this figure. It is important to note that weight may slightly vary depending on the specific steel grade employed. Therefore, it is advisable to consult the manufacturer's specifications or a reliable reference for precise weight calculations.
- Q: Are there any special requirements for handling and storing steel rebars on construction sites?
- Yes, there are several special requirements for handling and storing steel rebars on construction sites. Firstly, rebars should be stored on a flat and stable surface to prevent deformation. They should be stacked in a way that allows easy access and prevents entanglement. Secondly, rebars should be protected from moisture and direct contact with the ground to prevent rusting. They should be covered with a waterproof material or stored in a dry location. Additionally, rebars should be handled with appropriate lifting equipment to ensure worker safety and prevent damage to the rebars. It is also important to regularly inspect and maintain the storage area to ensure compliance with safety regulations.
- Q: What are the common manufacturing processes for steel rebars?
- The common manufacturing processes for steel rebars involve several steps to ensure the production of high-quality and durable reinforcement bars. These processes typically include: 1. Melting: The first step in manufacturing steel rebars is melting the raw materials, which usually consist of iron ore, coal, and limestone, in a blast furnace. This process produces molten iron that is then further refined to remove impurities. 2. Casting: Once the molten iron is refined, it is poured into molds to create large billets or blooms. These molds are often called continuous casting machines, where the molten iron solidifies into a rectangular shape. 3. Rolling: The solidified billets or blooms are then heated and passed through rolling mills. The rolling process involves compressing the steel between a series of rollers to reduce its thickness and shape it into the desired dimensions of rebars. This process also helps improve the mechanical properties and eliminate any internal defects or impurities. 4. Quenching and Tempering: After the initial rolling process, the rebars may undergo quenching and tempering. Quenching involves rapidly cooling the steel bars by immersing them in water or oil. This step increases the hardness of the rebars, making them more resistant to deformation and wear. Tempering follows, which involves reheating the quenched bars to a specific temperature and then cooling them slowly. Tempering helps remove internal stresses and improves the toughness of the rebars. 5. Cutting and Coiling: Once the bars have been rolled and heat-treated, they are cut to the desired lengths using cutting machines. The cut rebars are then coiled into bundles or stacked for storage and transportation. 6. Surface Treatment: To enhance the corrosion resistance of rebars, manufacturers often apply a protective coating or surface treatment. This can involve hot-dip galvanizing, where the rebars are immersed in molten zinc to form a zinc coating, or epoxy coating, where a layer of epoxy resin is applied to the rebars. It is important to note that these manufacturing processes may vary depending on the specific requirements and standards set by different countries and industries. However, the aforementioned steps provide a general overview of the common processes involved in manufacturing steel rebars.
- Q: Can steel rebars be used in structures with limited construction budget?
- Indeed, structures with a limited construction budget can incorporate steel rebars. The utilization of steel rebars is widespread in construction due to their robustness and durability. They contribute to the support and reinforcement of concrete, enhancing its resistance to tension and cracking. Although steel rebars may entail higher initial expenses in comparison to alternative materials, they present long-term economic benefits. By employing steel rebars, structures can enjoy an extended lifespan, thereby reducing the necessity for frequent repairs or replacements. Moreover, the prefabrication of steel rebars saves time and labor costs during the construction process. Additionally, steel rebars can be effortlessly recycled, rendering them a sustainable preference for construction projects. The recycling of steel diminishes the requirement for extracting raw materials and lessens the environmental impact. All in all, steel rebars represent an exceptional option for structures operating within limited construction budgets. They provide durability, longevity, and cost savings in the long run, thereby constituting a financially prudent choice for construction projects.
- Q: What is the maximum allowable percentage of rust on steel rebars?
- The maximum allowable percentage of rust on steel rebars is typically 5%.
- Q: Can steel rebars be used in the construction of theme parks and entertainment venues?
- Yes, steel rebars can be used in the construction of theme parks and entertainment venues. Steel rebars provide strength and durability, making them ideal for supporting heavy structures and withstanding the wear and tear associated with high foot traffic and dynamic loads in such venues. Additionally, steel rebars can be easily molded into various shapes and sizes, allowing for versatile and efficient construction in theme parks and entertainment venues.
- Q: Can steel rebars be used in the construction of shopping complexes?
- Yes, steel rebars can be used in the construction of shopping complexes. Steel rebars are commonly used as reinforcement in concrete structures, including shopping complexes, due to their high strength and ability to withstand heavy loads. They provide structural integrity and enhance the overall strength and durability of the building. Steel rebars are also resistant to corrosion, which is crucial for structures like shopping complexes that are exposed to varying weather conditions and high foot traffic. Additionally, the use of steel rebars allows for flexibility in design and construction, enabling architects and engineers to create complex and unique structures. Overall, steel rebars are a reliable and widely used material for reinforcing concrete in the construction of shopping complexes.
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TMT bar deformed bar reinforcing steel bar steel rebar
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 200000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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