Deformed Steel Bars All Size Steel Rebars Made In China
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 24000 m.t./month
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Product Description:
OKorder is offering Deformed Steel Bars All Size Steel Rebars Made In China 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:
Deformed Steel Bars All Size Steel Rebars Made In China are 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 Deformed Steel Bars All Size Steel Rebars Made In China 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:
1.commodity:deformed steel bars
2.grade:ASTM A615 HRB335 HRB400 HRB500 BS4449 grade460
3.size:6#-32#
4.length:6m 9m 12m
Chemistry % | |||||||||||||
Designation | Chief component | Impurities maxmium | |||||||||||
Ta | Nb | Fe | Si | Ni | W | Mo | Ti | Nb | O | C | H | N | |
Ta1 | Remainder | 0.004 | 0.003 | 0.002 | 0.004 | 0.004 | 0.002 | 0.03 | 0.015 | 0.004 | 0.0015 | 0.002 | |
Ta2 | Remainder | 0.01 | 0.01 | 0.005 | 0.02 | 0.02 | 0.005 | 0.08 | 0.02 | 0.01 | 0.0015 | 0.01 | |
Permissible variations in diameter for rods
Diameter, inch (mm) | Tolerance, +/-inch (mm) |
0.125~0.187 excl (3.175~4.750) | 0.003 (0.076) |
0.187~0.375 excl (4.750~9.525) | 0.004 (0.102) |
0.375~0.500 excl (9.525~12.70) | 0.005 (0.127) |
0.500~0.625 excl (12.70~15.88) | 0.007 (0.178) |
0.625~0.750 excl (15.88~19.05) | 0.008 (0.203) |
0.750~1.000 excl (19.05~25.40) | 0.010 (0.254) |
1.000~1.500 excl (25.40~38.10) | 0.015 (0.381) |
1.500~2.000 excl (38.10~50.80) | 0.020 (0.508) |
2.000~2.500 excl (50.80~63.50) | 0.030 (0.762) |
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.
- Q: How are steel rebars fixed in concrete slabs?
- Steel rebars are fixed in concrete slabs by being positioned and secured within the concrete mixture before it solidifies. The rebars are typically laid out in a predetermined pattern, and then tied together with wire or secured with metal clips to ensure they stay in place. This reinforcement helps to improve the strength and durability of the concrete slab, making it more resistant to cracking and structural failure.
- Q: What are the different types of coating for steel rebars?
- There are several different types of coatings that can be applied to steel rebars, including epoxy, zinc, and galvanized coatings. Epoxy coatings provide a protective barrier against corrosion and can be applied as a liquid or powder. Zinc coatings, such as hot-dip galvanizing, involve immersing the steel rebar in molten zinc, forming a durable protective layer. Galvanized coatings involve a similar process but typically use a thinner layer of zinc. These coatings help to extend the lifespan of the steel rebar and prevent corrosion.
- Q: How do steel rebars prevent corrosion in concrete structures?
- Passivation is a crucial process in preventing corrosion in concrete structures, and steel rebars are the key components responsible for this. By forming a thin oxide layer on their surface, the rebars act as a barrier against corrosion-causing agents. When embedded in concrete, steel rebars benefit from the alkaline environment created by the cement paste, which aids in passivation. The concrete's high pH level prompts the formation of a protective layer of iron oxide, effectively shielding the rebars from moisture and oxygen. Moreover, well-constructed concrete possesses a dense and impermeable nature that restricts the movement of water and other corrosive substances towards the rebars. Consequently, the likelihood of corrosion initiation and progression is significantly reduced. In addition to the alkaline environment and concrete's impermeability, steel rebars are commonly coated with epoxy or zinc, providing an extra layer of protection. These coatings enhance the steel's resistance to corrosion, especially in aggressive environments like marine or chloride-rich conditions. To ensure the long-term prevention of corrosion in concrete structures, regular maintenance and preventive measures are essential. Proper concrete cover over the rebars and the avoidance of excessive moisture or chloride ions are crucial factors in this regard.
- Q: How do steel rebars improve the ductility of concrete?
- Concrete's ductility is enhanced by steel rebars in several ways. Firstly, the distribution and dissipation of stress throughout the concrete structure is facilitated by the presence of rebars. This prevents the concentration of loads in specific areas, thus preventing cracks or fractures and improving overall ductility. Secondly, when concrete undergoes tension or bending forces, rebars act as reinforcement to resist these forces. The tensile strength of steel rebars is higher compared to concrete, which is weak in tension. This reinforcement allows concrete to withstand higher tensile stresses without breaking, thereby increasing ductility. Furthermore, the bond between steel rebars and the concrete matrix plays a crucial role in improving ductility. The rough surface of rebars provides better adhesion with the surrounding concrete, increasing stress transfer between the two materials. This bond ensures that rebars do not slip out of the concrete during deformation, maintaining structural integrity and enhancing the ductility of the composite material. Additionally, the presence of steel rebars contributes to the post-cracking behavior of concrete. When cracks develop under high loads, rebars help hold the concrete together and prevent further crack propagation. This post-cracking behavior enables concrete to maintain its load-bearing capacity even in a damaged state, thereby improving overall ductility. In conclusion, steel rebars improve concrete's ductility by distributing stress, resisting tension and bending forces, enhancing the bond between concrete and rebars, and providing post-cracking reinforcement. These combined effects result in a more flexible and durable concrete structure capable of withstanding deformation without catastrophic failure.
- Q: What are the common sizes of steel rebars used in construction?
- The sizes of steel rebars used in construction can vary depending on the specific application and engineering requirements. However, there are several standard sizes that are widely used in the industry. The industry commonly utilizes rebar sizes ranging from #3 to #18. These numbers represent the diameter of the rebar in eighths of an inch. For instance, a #3 rebar has a diameter of 3/8 inch, while a #18 rebar has a diameter of 2 1/4 inches. Regarding metric measurements, the most frequently used rebar sizes range from 10mm to 40mm in diameter. These sizes are typically designated by their nominal diameter in millimeters, such as 10mm, 12mm, 16mm, 20mm, 25mm, 32mm, and 40mm. The selection of the appropriate rebar size depends on various factors, including the required load-bearing capacity, the structural design, and the type of construction project. Smaller diameter rebars, like #3 or 10mm, are typically utilized in lighter construction projects or for smaller concrete elements like walls or slabs. Conversely, larger diameter rebars, like #18 or 40mm, are commonly employed in heavy-duty applications such as bridges, high-rise buildings, or large-scale infrastructure projects. It is important to note that different countries or regions may have their own specific standards regarding rebar sizes. Consequently, it is crucial to consult local building codes and regulations to ensure compliance.
- Q: Can steel rebars be used in bridge construction projects?
- Yes, steel rebars can be used in bridge construction projects. They provide strength and reinforcement to the concrete used in bridge construction, making it more durable and capable of withstanding heavy loads and forces.
- Q: What is the purpose of ribbing on a steel rebar?
- The purpose of ribbing on a steel rebar is to improve the bond between the rebar and the surrounding concrete. Raised deformations, known as ribs, run along the length of the rebar, creating a larger surface area for the concrete to grip onto. This larger surface area enhances the mechanical interlock between the rebar and concrete, resulting in better load transfer and improved structural integrity. Additionally, the ribbing prevents slippage or movement of the rebar within the concrete, ensuring that the reinforcement remains in its intended position, even under heavy loads or seismic activity. In summary, the ribbing on a steel rebar is vital for enhancing the performance and durability of reinforced concrete structures.
- Q: Can steel rebars be used in high-security facility construction?
- Yes, steel rebars can be used in high-security facility construction. Steel rebars provide enhanced strength and durability, making them suitable for reinforcing structures in high-security facilities where robustness and resistance against external threats are crucial.
- Q: What are the different shapes and forms of steel rebars available?
- There are several different shapes and forms of steel rebars available, each designed for specific applications and requirements in construction projects. 1. Plain round bars: These are the most common type of steel rebars and have a circular cross-section. They are used in a wide range of applications, including general construction, reinforcement in concrete slabs, and foundation works. 2. Deformed bars: These rebars have protrusions or deformations on their surface to provide better adhesion with concrete. The deformations increase the bond strength between the rebar and the concrete, making them suitable for applications that require high tensile strength, such as columns, beams, and retaining walls. 3. Square bars: As the name suggests, square rebars have a square cross-section. They are commonly used in applications where a strong bond with concrete is required, such as in precast concrete elements, footings, and walls. 4. Rectangular bars: Rectangular rebars have a rectangular cross-section and are often used in applications that require higher tensile strength, such as bridges, tunnels, and heavy structural elements. 5. Welded wire fabric (WWF): WWF is a prefabricated reinforcement material that consists of a series of longitudinal and transverse wires welded together to form a grid-like pattern. It is commonly used in slabs, walls, and pavements, providing uniform reinforcement distribution. 6. Dowel bars: Dowel bars are used to transfer loads between two adjacent concrete elements, such as connecting slabs or pavements. They are typically made of smooth round bars and are inserted into drilled holes with epoxy adhesive for improved load transfer. 7. T-shaped bars: T-shaped rebars have a T-like cross-section, with a stem and a flange. They are commonly used in applications where additional reinforcement is needed at specific locations, such as joints, corners, and connections. It is important to consider the specific requirements of the construction project and consult with structural engineers or professionals to determine the appropriate shape and form of steel rebars to ensure optimal reinforcement and structural integrity.
- Q: What is the carbon content of thread steel?
- Steel is very commonly used in the construction industry, so the wire in the production is there are some matters needing attention, such as the carbon content in steel, this is a very important decision index of thread steel hardness, so the carbon content in the steel is very important.
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Deformed Steel Bars All Size Steel Rebars Made In China
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 24000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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