55QHG deformed steel bar for construction
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10000 m.t.
- Supply Capability:
- 100000 m.t./month
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Specification
OKorder is offering high quality 55QHG deformed steel bar for construction 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:
55QHG deformed steel bar for construction 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 bar 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:
Standard | GB | HRB400 | |
Diameter | 6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm, 22mm,25mm,28mm,32mm,36mm,40mm,50mm | ||
Length | 6M, 9M,12M or as required | ||
Place of origin | Hebei, China mainland | ||
Advantages | exact size, regular package, chemical and mechanical properties are stable. | ||
Type | Hot rolled deformed steel bar | ||
Brand name | DRAGON |
Chemical Composition: (Please kindly find our chemistry of our material based on HRB500 as below for your information)
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 | |
Physical capability | |||||||
Yield Strength (N/cm²) | Tensile Strength (N/cm²) | Elongation (%) | |||||
≥400 | ≥570 | ≥14 |
Theoretical weight and section area of each diameter as below for your information:
Diameter(mm) | Section area (mm²) | Mass(kg/m) | Weight of 12m bar(kg) |
6 | 28.27 | 0.222 | 2.664 |
8 | 50.27 | 0.395 | 4.74 |
10 | 78.54 | 0.617 | 7.404 |
12 | 113.1 | 0.888 | 10.656 |
14 | 153.9 | 1.21 | 14.52 |
16 | 201.1 | 1.58 | 18.96 |
18 | 254.5 | 2.00 | 24 |
20 | 314.2 | 2.47 | 29.64 |
22 | 380.1 | 2.98 | 35.76 |
25 | 490.9 | 3.85 | 46.2 |
28 | 615.8 | 4.83 | 57.96 |
32 | 804.2 | 6.31 | 75.72 |
36 | 1018 | 7.99 | 98.88 |
40 | 1257 | 9.87 | 118.44 |
50 | 1964 | 15.42 | 185.04 |
1.Diameter:6mm-32mm
2.Material:BS4449 Grade 460B,ASTM A615 GR60
3.Length:6-12meters
1. Length: 6m-12m as standard.
2. Reputation first, best competitive price, high quality, quotes price promptly and confirm the delivery on time!
3. Application : Used for housing construction.
4. PRICE: Keep lower operating costs so as to offer competitive price for our clients.
5. Minimum Order Quantity: 300 MTS as per size.
6. Invoicing: Actual or Theoretical Weight Basis as buyer’s request.
7. Payment terms: TT payment in advance or irrevocable LC at sight.
8. Delivery time: 25-30 days after we receive your TT payment at sight
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.
- Q:How are steel rebars connected to each other?
- Steel rebars are typically connected to each other using various methods such as overlapping, welding, or using mechanical connectors like couplers or threaded bars.
- 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 seawater desalination plants?
- Yes, steel rebars can be used in seawater desalination plants, but it is important to consider the corrosion potential of steel in a saline environment. Proper corrosion protection measures, such as using corrosion-resistant coatings or stainless steel rebars, should be implemented to ensure the longevity and structural integrity of the plant.
- Q:What is the effect of impurities on the corrosion resistance of steel rebars?
- The corrosion resistance of steel rebars can be significantly affected by impurities. Steel rebars consist primarily of iron and carbon, but varying amounts of impurities like sulfur, phosphorus, and silicon can also be present. One common impurity found in steel is sulfur. When sulfur reacts with water and oxygen, it forms sulfuric acid, which accelerates the corrosion process. This acid attack can cause rebars to deteriorate faster, reducing their overall strength and durability. Another impurity, phosphorus, can have a negative impact on the corrosion resistance of steel rebars. It can promote the formation of localized corrosion sites called pitting, which can lead to the development of rust and eventual structural damage. Although silicon is generally considered beneficial in steel production, excessive amounts can have adverse effects. Higher levels of silicon in rebars can result in the formation of a protective oxide layer. However, this layer can sometimes be porous, allowing corrosive agents to penetrate and cause corrosion. In conclusion, the presence of impurities in steel rebars can compromise their corrosion resistance. It is essential to ensure that construction steel meets specified standards and has minimal impurities. Additionally, proper maintenance and regular inspection of rebars are crucial to identify and address potential corrosion issues before they cause significant damage or structural failures.
- Q:What are the guidelines for the proper installation of steel rebars?
- Achieving the structural integrity and durability of reinforced concrete structures relies heavily on the correct installation of steel rebars. To ensure their proper installation, the following guidelines must be followed: 1. Planning and Design: Prior to commencing installation, a detailed plan and design must be established. This involves determining the necessary rebar size, spacing, and configuration based on structural requirements and specifications. It is crucial to consult with structural engineers and adhere to local building codes and regulations. 2. Cutting and Bending: Rebars should be accurately cut and bent in accordance with the design specifications. The use of appropriate tools, such as rebar cutters and benders, is necessary to achieve clean cuts and precise bends. Any rebars that are damaged or corroded should be discarded and replaced. 3. Cleaning and Preparation: The surface of the rebars should be free from contaminants such as rust, oil, dirt, or loose scales before installation. The recommended method for cleaning rebars is using wire brushes or air blasting to ensure proper adhesion between the rebar and concrete. 4. Placement and Positioning: Rebars should be placed and positioned accurately based on the design drawings. They should be securely tied or supported using tie wires or rebar chairs to maintain the desired spacing and alignment. Splices should be made according to the design requirements and properly lapped to ensure continuity and strength. 5. Concrete Cover: Adequate concrete cover is crucial to protect the rebars from corrosion and provide fire resistance. The concrete cover thickness should meet the design specifications and local building codes. Proper spacing between rebars and formwork should be maintained to allow for proper concrete flow and consolidation. 6. Anchorage and Embedment: Sufficient anchorage and embedment of rebars are essential for load transfer and structural stability. Special attention should be given to providing proper hooks, bends, or mechanical anchorage at the ends of rebars as required by the design. The rebars should be appropriately embedded into adjacent concrete elements to achieve the desired bond strength. 7. Inspection and Quality Control: Regular inspection should be conducted throughout the installation process to ensure compliance with design specifications and quality standards. Any deviations or defects should be promptly identified and rectified. It is important to document the installation process and maintain proper records for future reference. By adhering to these guidelines, the proper installation of steel rebars can be accomplished, guaranteeing the structural strength, longevity, and safety of reinforced concrete structures.
- Q:What are the factors to consider when choosing the right steel rebar for a project?
- When selecting the appropriate steel rebar for a project, several factors need to be taken into consideration. These factors include the type of project, the structural requirements, the environment, and the specific characteristics of the rebar. One of the key factors to consider is the type of project. Different projects, such as residential buildings, bridges, or highways, have varying structural requirements. The steel rebar selected should be able to withstand the anticipated loads and stresses of the project. Additionally, the size and shape of the rebar should also align with the project's design and specifications. Structural requirements play a vital role in choosing the right steel rebar. This includes considering the required tensile strength, yield strength, and elongation properties. It is crucial to select a rebar that can provide the necessary strength and durability to ensure the structural integrity of the project. The environment in which the project will be located is another significant factor. If the project is exposed to corrosive elements, such as saltwater or chemicals, it is important to choose a rebar with corrosion-resistant properties. This can prevent premature deterioration and maintain the longevity of the structure. Furthermore, the specific characteristics of the rebar need to be evaluated. This includes the grade of the steel, which determines its strength and ductility. Different grades, such as ASTM A615 or ASTM A706, have distinct properties that suit various applications. The surface finish of the rebar, such as plain or deformed, also affects its bonding ability with concrete. Other factors that should be taken into account include the availability and cost of the steel rebar. It is crucial to ensure that the selected rebar is readily available and can be obtained in the required quantities and sizes. Additionally, the cost of the rebar should align with the project's budget constraints. In conclusion, when choosing the right steel rebar for a project, it is essential to consider factors such as the type of project, structural requirements, environmental conditions, and specific characteristics of the rebar. By carefully considering these factors, one can select the most suitable steel rebar that ensures the durability and longevity of the structure.
- Q:How do steel rebars affect the overall flexibility of concrete structures?
- Steel rebars significantly enhance the overall flexibility of concrete structures. By reinforcing the concrete, rebars increase its resistance to tensile forces, which is crucial in preventing cracks and failures. This added flexibility ensures that the structure can withstand various external loads and environmental conditions without compromising its integrity.
- Q:Can steel rebars be used in precast or prestressed concrete?
- Yes, steel rebars can be used in both precast and prestressed concrete. Rebars are commonly used in these construction methods to provide reinforcement and enhance the strength and durability of the concrete structures.
- Q:What factors affect the cost of steel rebars?
- Several factors can affect the cost of steel rebars. These include the current market demand and supply for steel, the cost of raw materials such as iron ore and scrap metal, transportation and logistics costs, energy costs, labor costs, and any applicable taxes or tariffs. Additionally, fluctuations in currency exchange rates and global economic conditions can also impact the cost of steel rebars.
- Q:Are steel rebars resistant to termites and other pests?
- Yes, steel rebars are highly resistant to termites and other pests.
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55QHG deformed steel bar for construction
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10000 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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