Twelve mm Cold Rolled Steel Rebars with High Quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 15000 m.t./month
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Specifications of Twelve mm Cold Rolled Steel Rebars with High Quality:
Name | Cold Rolled Steel Rebar | |
Diameter | 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, | |
Length | 6M, 9M, 12M or as required | |
Price | Keep lower operating costs so as to offer competitive price for our clients | |
Label | to be specified by customer, generally, each bundle has 1-2 labels | |
Application | Building, construction | |
Invoicing | Actual or Theoretical Weight Basis as buyer’s request. | |
Theoretical weight and section area of each diameter of Twelve mm Cold Rolled Steel Rebars with High Quality as below for your information:
Diameter(mm) | Section area (mm²) | Mass(kg/m) | Weight of 12m (kg) | Pcs/ton |
12 | 113.04 | 0.888 | 10.656 | 93.84 |
Packaging & Delivery of Twelve mm Cold Rolled Steel Rebars with High Quality:
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 terms: TT payment in advance or Irrevocable LC at sight.
Trade terms :FOB, CFR, CIF
Delivery Detail: within 45 days after received advanced payment or LC.
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 arrange production. The shipping date is dependent upon the quatity, how many sizes you want and the plan of production, but is typically 1 month to 2 month days from the beginning of production.
Images of Twelve mm Cold Rolled Steel Rebars with High Quality:
- Q:How do steel rebars affect the overall moisture resistance of a structure?
- Steel rebars can actually decrease the overall moisture resistance of a structure. This is because steel is prone to corrosion when it comes into contact with moisture, leading to rust formation. As the rebar rusts, it expands, causing the surrounding concrete to crack and further allowing moisture to penetrate the structure. Therefore, proper measures such as protective coatings or encasing the rebars in concrete are necessary to enhance the moisture resistance and durability of the structure.
- Q:Can steel rebars be used in structures with high chemical exposure?
- No, steel rebars should not be used in structures with high chemical exposure because they are prone to corrosion and may deteriorate over time.
- Q:Can steel rebars be used in pre-stressed concrete elements?
- Yes, steel rebars can be used in pre-stressed concrete elements.
- Q:How do steel rebars comply with building codes and regulations?
- Steel rebars comply with building codes and regulations by meeting the specific requirements outlined for their use in construction projects. Building codes and regulations are established to ensure the safety, durability, and structural integrity of buildings. Here are a few ways steel rebars comply with these codes and regulations: 1. Material Standards: Steel rebars must meet certain material standards set by the building codes. These standards specify the type, grade, and quality of steel allowed for construction purposes. For example, the American Society for Testing and Materials (ASTM) has established standards for steel rebars, such as ASTM A615, which outlines the requirements for deformed and plain carbon-steel bars. 2. Size and Shape: Building codes specify the dimensions and shape of rebars to be used in different structural elements, such as beams, columns, and slabs. Steel rebars must comply with these size and shape requirements to ensure proper fit and structural integrity. 3. Placement and Spacing: Building codes dictate the proper placement and spacing of rebars within concrete structures. These codes specify the minimum and maximum distances between rebars, as well as the cover requirements (distance from the surface of the concrete). Compliance with these regulations helps enhance the strength and durability of the structure. 4. Welding and Connection: If welding or connecting rebars is necessary, building codes provide guidelines on the proper welding techniques and requirements. These regulations ensure that the welded or connected rebars provide the necessary strength and stability to the structure. 5. Testing and Certification: Steel rebars need to undergo various tests to ensure compliance with building codes and regulations. These tests include tensile strength, yield strength, elongation, and bending tests. Products that pass these tests are certified as compliant and can be used in construction projects. By adhering to these building codes and regulations, steel rebars contribute to the overall safety and integrity of the structures they are used in. Compliance ensures that the rebars meet the necessary standards and perform their intended function effectively.
- 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:How are steel rebars used in reinforced concrete structures?
- Steel rebars are used in reinforced concrete structures to enhance their tensile strength and durability. They are placed within the concrete to resist and distribute tension forces, helping to prevent cracking and structural failure. The rebars act as reinforcements, ensuring that the concrete can withstand heavy loads and external pressures, making the structure stronger and more resilient.
- Q:How are steel rebars tested for quality?
- Steel rebars are tested for quality through various methods such as visual inspection, dimensional checks, and destructive testing. Visual inspection involves examining the rebars for any surface defects or abnormalities. Dimensional checks ensure that the rebars meet the specified size, length, and weight requirements. Destructive testing involves subjecting the rebars to tension, compression, and bending forces to assess their strength, ductility, and overall performance. These tests help ensure that steel rebars meet the necessary quality standards for construction purposes.
- Q:How do steel rebars prevent corrosion in concrete structures?
- Steel rebars prevent corrosion in concrete structures through the process of passivation. Passivation is the formation of a thin, protective oxide layer on the surface of the steel rebar, which acts as a barrier against corrosion-causing agents. When steel rebars are embedded in concrete, the alkaline environment created by the cement paste helps in passivating the steel. The high pH level of the concrete creates a protective layer of iron oxide (rust) on the rebar's surface, preventing the steel from coming into contact with moisture and oxygen. Furthermore, the dense and impermeable nature of well-constructed concrete limits the movement of water and other corrosive substances towards the steel rebars. This reduces the likelihood of corrosion initiation and its progression. In addition to the alkaline environment and concrete's impermeability, steel rebars are also typically coated with a layer of epoxy or zinc to provide an extra layer of protection. These coatings further enhance the resistance of the steel to corrosion, particularly in aggressive environments such as marine or chloride-rich conditions. Regular maintenance and preventive measures, such as ensuring proper concrete cover over the rebars and avoiding the presence of excessive moisture or chloride ions, also play a crucial role in preventing corrosion in concrete structures.
- 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:Can steel rebars be used in structures with high electromagnetic shielding requirements?
- To a certain extent, structures with high electromagnetic shielding requirements can make use of steel rebars. Steel is inherently conductive, meaning it can redirect and absorb electromagnetic waves, which is why steel rebars are beneficial for reducing the infiltration of electromagnetic radiation into structures. Nevertheless, it is important to consider that the effectiveness of steel rebars in providing electromagnetic shielding relies on various factors. The thickness and quality of the steel rebars, the design and construction of the structure, and the frequency and intensity of the electromagnetic waves all contribute to determining the level of shielding that can be achieved. In situations where extremely high electromagnetic shielding requirements are necessary, additional measures may be required. These measures may involve the utilization of specialized materials that are specifically designed for electromagnetic shielding, such as conductive coatings or composite materials with high conductivity. Furthermore, it is crucial to take into account the overall design and construction of the structure to ensure that the steel rebars are properly grounded. Proper grounding facilitates the safe channeling and dissipation of electromagnetic energy, preventing the accumulation of potentially hazardous electromagnetic fields. In conclusion, although steel rebars can contribute to electromagnetic shielding in structures, the level of shielding provided can vary depending on multiple factors. For structures with stringent electromagnetic shielding requirements, it is advisable to seek guidance from experts in the field to determine the most suitable materials and construction techniques.
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Twelve mm Cold Rolled Steel Rebars with High Quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 15000 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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