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 protected from moisture during storage?
- Steel rebars are protected from moisture during storage by applying a protective coating, such as anti-corrosion paint or epoxy, or by covering them with waterproof materials like plastic sheets or tarps. Additionally, storing rebars in a dry and well-ventilated area can help prevent moisture buildup.
- Q:What are the different types of steel rebars used in earthquake-prone regions?
- In earthquake-prone regions, various types of steel rebars are used to enhance the structural integrity and resilience of buildings. These rebars are specifically designed to withstand the powerful forces generated during seismic events, thus reducing the risk of structural failure. The different types of steel rebars commonly used in earthquake-prone regions include: 1. Mild Steel Rebars (MSR): These rebars, also known as carbon steel rebars, are the most commonly used type due to their affordability and availability. MSR rebars have a relatively low yield strength, typically ranging from 250 to 420 megapascals (MPa). While they provide basic reinforcement, they are not specifically designed to withstand intense seismic forces. 2. High-Strength Deformed Bars (HSD): HSD rebars have significantly higher yield strength compared to MSR rebars, typically ranging from 415 to 600 MPa. These rebars are manufactured by subjecting carbon steel to additional heat treatment and controlled cooling, resulting in improved strength and ductility. HSD rebars are more resistant to seismic forces and are commonly used in earthquake-prone regions. 3. Stainless Steel Rebars (SSR): Stainless steel rebars are highly resistant to corrosion and possess excellent strength characteristics. They are commonly used in coastal earthquake-prone regions where exposure to saltwater or corrosive environments is a concern. SSR rebars provide enhanced durability and longevity, reducing the risk of structural damage caused by corrosion over time. 4. Fiberglass Rebars: Fiberglass rebars, also known as FRP (fiber-reinforced polymer) rebars, are non-metallic reinforcement alternatives gaining popularity in earthquake-prone regions. Made from glass fibers embedded in a polymer resin matrix, FRP rebars offer excellent resistance to corrosion, making them suitable for coastal regions. Although they have lower strength compared to steel rebars, FRP rebars have high tensile strength, making them a viable option for seismic reinforcement. 5. Galvanized Rebars: Galvanized rebars are carbon steel rebars coated with a layer of zinc to enhance corrosion resistance. The zinc coating acts as a sacrificial layer, protecting the underlying steel from corrosion. While galvanized rebars are not specifically designed for seismic resistance, they offer improved durability in earthquake-prone regions with high moisture or corrosive conditions. It is important to note that the selection of steel rebars in earthquake-prone regions depends on various factors, including the level of seismic activity, building codes and regulations, budget constraints, and specific project requirements. Consulting with structural engineers and adhering to local building codes is crucial in determining the appropriate type of steel rebars for seismic reinforcement to ensure the safety and resilience of structures in these regions.
- Q:What are the different types of steel rebars used in foundation construction?
- There are several types of steel rebars commonly used in foundation construction, including plain round bars, deformed bars, epoxy-coated bars, and galvanized bars. Plain round bars are smooth and have no surface deformations, making them suitable for lightweight applications. Deformed bars have ribs, lugs, or other surface deformations that provide better bonding with concrete and enhance the strength of the foundation. Epoxy-coated bars are coated with a layer of epoxy to protect against corrosion, making them ideal for areas with high moisture or chemical exposure. Galvanized bars are coated with a layer of zinc to prevent rusting and corrosion, making them suitable for outdoor or marine environments.
- Q:What is the role of steel rebars in industrial flooring construction?
- Steel rebars play a crucial role in industrial flooring construction as they provide reinforcement and strength to the concrete. By being embedded within the concrete slab, rebars help to distribute loads evenly, resist tension forces, and prevent cracking or structural failure. They enhance the durability and longevity of the flooring, making it capable of withstanding heavy loads, impact, and vibrations commonly encountered in industrial settings.
- Q:What are the guidelines for handling and installing steel rebars in construction sites?
- The guidelines for handling and installing steel rebars in construction sites typically include the following: 1. Storage: Steel rebars should be stored on a flat and dry surface, preferably on elevated racks to prevent contact with the ground and avoid rusting or damage. 2. Transportation: Rebars should be moved using appropriate lifting equipment, such as cranes or forklifts, to prevent excessive bending or mishandling. 3. Inspection: Rebars should be inspected for any defects, such as bends, cracks, or excessive rust, before installation. Damaged rebars should not be used. 4. Cutting and bending: Rebars should be cut and bent using appropriate tools and equipment, following the specifications and dimensions provided in the construction plans. 5. Placement: Rebars should be placed accurately and securely within the concrete structures, ensuring proper alignment and spacing as per the design requirements. 6. Tying: Rebars should be securely tied together using wire or approved tying methods at the intersections to maintain the desired positions during concrete pouring. 7. Embedment: Rebars should be properly embedded within the concrete to ensure sufficient coverage, typically complying with the minimum concrete cover specified in the design. 8. Safety: Adequate personal protective equipment (PPE), such as gloves and safety boots, should be worn by workers during rebars handling and installation to prevent injuries. It is important to note that specific construction projects and local regulations may have additional guidelines or requirements for handling and installing steel rebars. Therefore, it is crucial to refer to the project specifications and consult with relevant experts or authorities for comprehensive guidelines.
- Q:What is the effect of chloride ions on steel rebars?
- The presence of chloride ions in the environment can have a detrimental effect on steel rebars. Chloride ions can penetrate the protective oxide layer on the surface of the steel and react with the iron atoms, leading to the formation of iron chloride compounds. These compounds are highly corrosive and can cause the rebars to rust and eventually weaken. This corrosion process, known as chloride-induced corrosion, can significantly reduce the structural integrity and lifespan of steel rebars, posing a risk to the overall stability of reinforced concrete structures. Therefore, it is crucial to protect steel rebars from chloride exposure through proper design, construction, and maintenance practices to ensure their long-term durability and safety.
- Q:Can steel rebars be used in road and pavement construction?
- Yes, steel rebars can be used in road and pavement construction. Steel rebars are commonly used as reinforcement in concrete structures, including roads and pavements, to increase their strength, durability, and resistance to cracking and deformation. The rebars are typically placed strategically within the concrete to provide additional support and prevent the formation of cracks under heavy loads and traffic conditions.
- Q:What are the guidelines for proper handling and disposal of steel rebars on construction sites?
- The guidelines for proper handling and disposal of steel rebars on construction sites include wearing appropriate personal protective equipment (PPE) such as gloves and safety glasses, using proper lifting techniques to avoid injury, storing rebars in a designated area away from workers and equipment, and disposing of them in accordance with local regulations, which may require recycling or proper disposal in designated waste sites.
- Q:Can steel rebars be used in structures with high carbonation levels in concrete?
- No, steel rebars should not be used in structures with high carbonation levels in concrete. Carbonation is a chemical process that occurs when carbon dioxide reacts with the alkaline components in concrete. It leads to a reduction in the alkalinity of the concrete, which can cause the passive layer protecting the steel rebars to dissolve. This exposes the steel to corrosion, which can weaken the structure over time. To mitigate the risk of corrosion, it is recommended to use alternative materials, such as stainless steel rebars, in structures with high carbonation levels. Stainless steel rebars have a higher resistance to corrosion than carbon steel rebars and can withstand the harsh environment created by high carbonation levels in concrete. Additionally, other corrosion protection measures, like epoxy coating or concrete cover thickness, should also be considered to further enhance the durability and longevity of the structure.
- Q:What is the lifespan of steel rebars in marine structures?
- The durability of steel rebars in marine structures can vary due to several factors, including the quality of the steel, the environmental conditions they are exposed to, and the maintenance strategies employed. However, marine structures that are designed, constructed, and maintained appropriately can typically endure for 50 to 100 years. Typically, steel rebars used in marine structures are coated with corrosion-resistant materials, like epoxy or zinc, to shield them from the harsh marine environment. These coatings serve as an extra layer of protection, extending the lifespan of the rebars. Nevertheless, it is crucial to acknowledge that the marine environment is highly corrosive due to the presence of saltwater, humidity, and other corrosive agents. Over time, these elements can cause the deterioration of the protective coatings, exposing the rebars to corrosion. Without adequate maintenance measures, such as regular inspections, cleaning, and reapplication of protective coatings, the rebars may experience accelerated corrosion, leading to a shortened lifespan. Furthermore, the design and construction of marine structures play a critical role in determining the lifespan of steel rebars. It is essential to carefully consider factors like structural design, material selection, and detailing to minimize the risk of corrosion and ensure the longevity of the rebars. To summarize, the lifespan of steel rebars in marine structures can vary from 50 to 100 years based on factors such as steel quality, environmental conditions, and maintenance practices. Proper design, construction, and maintenance are crucial for maximizing the lifespan of steel rebars in marine structures.
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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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