Cold Rolled Steel Rebars with High Quality 6mm-50mm
- 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 Cold Rolled Steel Rebars with High Quality 6mm-50mm:
Name | Cold Rolled Steel Rebar | |
Diameter | 6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm, 22mm,25mm,28mm,32mm,36mm,40mm,50mm | |
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 Cold Rolled Steel Rebars with High Quality 6mm-50mm as below for your information :
Diameter(mm) | Section area (mm²) | Mass(kg/m) | Weight of 12m (kg) | Pcs/ton |
6 | 28.27 | 0.222 | 2.664 | 375.38 |
8 | 50.27 | 0.395 | 4.74 | 210.97 |
10 | 78.54 | 0.617 | 7.404 | 135.06 |
12 | 113.1 | 0.888 | 10.656 | 93.84 |
14 | 153.9 | 1.21 | 14.52 | 68.87 |
16 | 201.1 | 1.58 | 18.96 | 52.74 |
18 | 254.5 | 2.00 | 24 | 41.67 |
20 | 314.2 | 2.47 | 29.64 | 33.74 |
22 | 380.1 | 2.98 | 35.76 | 27.96 |
25 | 490.9 | 3.85 | 46.2 | 21.65 |
28 | 615.8 | 4.83 | 57.96 | 17.25 |
32 | 804.2 | 6.31 | 75.72 | 13.21 |
36 | 1018 | 7.99 | 98.88 | 10.43 |
40 | 1257 | 9.87 | 118.44 | 8.44 |
50 | 1964 | 15.42 | 185.04 | 5.40 |
Packaging & Delivery of Cold Rolled Steel Rebars with High Quality 6mm-50mm:
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 Cold Rolled Steel Rebars with High Quality 6mm-50mm:
- Q:What are the guidelines for the proper anchoring of steel rebars in walls?
- To ensure the structural integrity and stability of the construction, it is crucial to properly anchor steel rebars in walls. Here are some guidelines to adhere to for the correct anchoring of steel rebars in walls: 1. Determine the necessary rebar size and spacing: The design specifications and load requirements dictate the size and spacing of rebars. Consult a structural engineer or refer to building codes for the appropriate rebar size and spacing. 2. Clean and prepare the concrete surfaces: Prior to anchoring the rebars, ensure that the concrete surfaces are clean and devoid of dust, debris, and loose material. Utilize a wire brush or compressed air to eliminate any contaminants. 3. Employ appropriate anchoring techniques: The most widely used method for anchoring steel rebars in walls is embedding them into the concrete. Ensure secure embedding by following these steps: a. Drill holes: Drill holes in the concrete wall at designated locations and depths, ensuring the hole diameter matches the rebar size. b. Clean the drilled holes: Utilize compressed air or a brush to remove any dust or debris from the drilled holes. c. Insert rebars: Insert the rebars into the drilled holes, making sure they reach the required embedment depth. d. Maintain proper spacing: Follow design requirements to maintain the specified spacing between rebars. e. Secure rebars: Use suitable anchoring materials like epoxy resin or grout to secure the rebars in place. Adhere to the manufacturer's instructions for mixing and applying the anchoring material. f. Verify proper alignment: Before the anchoring material sets, ensure the rebars are correctly aligned both horizontally and vertically. 4. Allow sufficient curing time: After anchoring the rebars, allow ample time for the anchoring material to cure. This guarantees that the rebars are firmly secured in place. 5. Adequately protect the rebars: Once the rebars are anchored, protect them from corrosion by applying a suitable corrosion-resistant coating or by using corrosion-resistant rebars. It is imperative to adhere to these guidelines, as improper anchoring of steel rebars can compromise the structural integrity of the walls and pose safety risks. Always consult a qualified structural engineer or building professional for specific guidelines tailored to your project.
- Q:What are the guidelines for the proper spacing of steel rebars in columns?
- The guidelines for the proper spacing of steel rebars in columns are provided by various national and international codes and standards, such as the American Concrete Institute (ACI) and the British Standards Institution (BSI). These guidelines ensure the structural integrity and durability of the reinforced concrete columns. The spacing of steel rebars in columns is primarily determined by the following factors: 1. Concrete cover: The minimum concrete cover is specified by the codes to protect the steel reinforcement from corrosion and provide fire resistance. The spacing between rebars should be such that the required concrete cover is maintained uniformly around each rebar. 2. Rebar diameter: The size or diameter of the rebars influences their spacing. The codes specify the minimum clear spacing between adjacent rebars based on their diameter to prevent congestion and ensure proper concrete placement. 3. Column dimension: The size and shape of the column also play a significant role in determining the rebar spacing. Larger columns may require additional rebars compared to smaller ones to provide adequate reinforcement and resist the applied loads. 4. Load and design requirements: The design loads, including dead loads, live loads, and seismic loads, impact the spacing of rebars. The codes provide guidelines on the minimum amount of reinforcement required based on the column's dimensions and the anticipated loads. 5. Structural detailing: Proper detailing is essential to ensure the rebars are adequately anchored and lapped to develop the required bond strength. Guidelines for lapping lengths, anchorage lengths, and splices are provided in the codes to ensure the transfer of forces between the rebars and concrete. It is crucial to consult the specific code or standard applicable in your region to determine the exact guidelines for the spacing of steel rebars in columns. Additionally, it is recommended to engage a qualified structural engineer or designer to perform detailed analysis and design of reinforced concrete columns to ensure compliance with the appropriate guidelines and achieve a safe and efficient structural system.
- Q:Can steel rebars be used in precast concrete?
- Indeed, precast concrete can make use of steel rebars. It entails fabricating concrete components away from the construction site and subsequently transferring them for installation. Generally, steel rebars are incorporated into precast concrete elements to furnish reinforcement and bolster the strength and resilience of the concrete structure. During the manufacturing process, these rebars are typically embedded inside the precast concrete elements, guaranteeing a cohesive interaction between the concrete and steel to counteract tensile forces and forestall cracks or structural failure. This amalgamation of steel rebars and precast concrete yields robust, dependable, and efficient construction elements that can be easily erected on-site.
- Q:What are the different types of steel rebars used in foundation constructions?
- There are several types of steel rebars commonly used in foundation constructions, each with its own unique properties and advantages. 1. Mild Steel Rebars: Also known as black bars, these rebars are made from carbon steel and have a low carbon content. They are widely used due to their affordability and versatility. Mild steel rebars are suitable for most general construction projects and offer good strength and durability. 2. High-strength Deformed Steel Rebars (HSD): These rebars have a higher tensile strength compared to mild steel rebars. They are manufactured by twisting the steel at high temperatures, resulting in a deformed surface that provides excellent bonding with concrete. HSD rebars are commonly used in heavy-duty structures where high strength is required, such as bridges and tall buildings. 3. Epoxy-Coated Rebars: These rebars are coated with epoxy resin to provide protection against corrosion. Epoxy coating acts as a barrier between the steel and the surrounding environment, preventing the penetration of moisture and chemicals that can cause rusting. Epoxy-coated rebars are commonly used in areas with high humidity or exposure to corrosive elements, such as coastal regions. 4. Stainless Steel Rebars: These rebars are made from corrosion-resistant stainless steel, typically containing chromium and nickel. Stainless steel rebars offer exceptional resistance to corrosion, making them ideal for structures exposed to aggressive environments or chemicals. They are commonly used in marine constructions, wastewater treatment plants, and areas with high chloride content. 5. Galvanized Rebars: These rebars are coated with a layer of zinc to provide corrosion protection. The zinc coating acts as a sacrificial layer, corroding in place of the steel rebars. Galvanized rebars are widely used in areas with high humidity or exposure to chemicals, such as parking garages, highway structures, and industrial buildings. 6. Welded Wire Mesh: Although not a traditional rebar, welded wire mesh is commonly used in foundation constructions. It consists of interconnected steel wires welded together to form a mesh grid. Welded wire mesh offers reinforcement and helps distribute loads evenly across the foundation. It is often used in slabs, foundations, and retaining walls. Overall, the choice of steel rebars for foundation constructions depends on factors such as the project's requirements, environmental conditions, and budget constraints. It is essential to consider the specific needs of the construction project and consult with structural engineers to determine the most suitable type of steel rebars to ensure a strong and durable foundation.
- Q:10 less than three rebar refers to the rebar?
- A grade steel is round, without ribs, elongation is the advantage, of course, it also determines its strength is lower than grade three steel.
- Q:What is the corrosion resistance of steel rebars?
- The corrosion resistance of steel rebars is generally high due to the presence of a protective oxide layer on the surface of the steel. However, in certain environments, such as those with high levels of moisture or exposure to corrosive substances, the rebars may be susceptible to corrosion. Therefore, additional measures such as proper concrete cover, epoxy coating, or galvanization are often employed to enhance the corrosion resistance of steel rebars.
- 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:How can the quality of steel rebars be tested?
- The quality of steel rebars can be tested through various methods to ensure their strength and reliability. Some common techniques include: 1. Visual Inspection: This involves examining the rebars for any visible defects such as surface cracks, unevenness, or corrosion that could affect their performance. 2. Chemical Composition Analysis: The composition of the steel rebars can be determined through spectroscopy or other similar methods to ensure they meet the required standards. This analysis verifies the presence and percentage of various elements such as carbon, manganese, and silicon. 3. Tensile Strength Testing: A sample of the steel rebar is subjected to tension until it fractures. The maximum force applied to the bar before breaking determines its tensile strength. This test helps identify any weak spots or inconsistencies within the rebar. 4. Bend Test: This test evaluates the ductility of the rebars by bending them to a specific angle without any signs of cracking or fracture. It ensures the rebar can withstand bending and shaping during construction without compromising its structural integrity. 5. Ultrasonic Testing: Ultrasonic waves are used to detect internal flaws or defects within the rebars. This non-destructive testing method helps identify any hidden cracks, voids, or inclusions that may weaken the rebar. 6. Hardness Test: The hardness of the steel rebars can be determined using the Rockwell or Brinell hardness test. This test measures the resistance of the rebar's surface to indentation, providing an indication of its strength. 7. Corrosion Resistance Test: The rebars can undergo corrosion testing, such as salt spray testing or electrochemical methods, to assess their resistance against rust and other forms of corrosion. By utilizing a combination of these testing methods, manufacturers, construction companies, and engineers can ensure that steel rebars meet the required quality standards and can withstand the intended load and environmental conditions.
- Q:What are the common quality control tests for steel rebars?
- There are several common quality control tests conducted on steel rebars to ensure their compliance with industry standards and specifications. These tests help assess the physical, mechanical, and chemical properties of the rebars, ensuring their durability and performance. Some of the common quality control tests for steel rebars include: 1. Tensile Test: This test determines the tensile strength, yield strength, and elongation of the rebars. It involves applying a gradually increasing force to the rebar until it fractures, measuring the maximum force it can withstand before breaking. 2. Bend Test: This test evaluates the rebars' ability to withstand bending without cracking or breaking. The steel rebar is bent to a specific angle and checked for any visible cracks or fractures. 3. Chemical Composition Analysis: This test determines the chemical composition of the steel rebars, ensuring they meet the required standards. It involves analyzing the levels of carbon, manganese, phosphorus, sulfur, and other elements present in the rebar. 4. Visual Inspection: This test involves a visual examination of the rebars to ensure they are free from surface defects, such as cracks, splits, or any other irregularities that may affect their structural integrity. 5. Dimensional Inspection: This test verifies the dimensions and shape of the rebars, checking for any deviations from the specified requirements. It involves measuring the diameter, length, and shape of the rebars using calibrated instruments. 6. Weldability Test: In case the rebars are intended for welding purposes, a weldability test is performed to assess their suitability for welding. This test involves welding the rebars and evaluating the quality of the weld joint, including factors like strength, porosity, and brittleness. 7. Corrosion Resistance Test: This test determines the rebars' resistance to corrosion, which is crucial for their long-term durability. It involves subjecting the rebars to accelerated corrosion conditions, such as exposure to corrosive environments or salt spray, and assessing their corrosion resistance. These quality control tests play a vital role in ensuring the quality and reliability of steel rebars used in construction projects. By conducting these tests, manufacturers and inspectors can identify any non-compliant or substandard rebars, ensuring the safety and structural integrity of the buildings and infrastructure where these rebars are used.
- Q:What is the national standard of thread steel No. 8?
- Thread steel specifications: generally including the standard grade (type code), steel nominal diameter, nominal weight (quality), the length of the specifications and the allowable difference between the above indicators. China's standard recommended nominal diameter of 6, 8, 10, 12, 16, 20, 25, 32, 40, 50mm thread steel series.
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Cold Rolled Steel Rebars with High Quality 6mm-50mm
- 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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