Deformed Bar Hot Rolled High Quality BS449 or ASTM
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 200000 m.t./month
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OKorder Financial Service
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Product Description:
OKorder is offering high quality Hot Rolled Steel I-Beams 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 bar is widely used in buildings, bridges, roads and other engineering construction. Big to highways, railways, bridges, culverts, tunnels, public facilities such as flood control, dam, small to housing construction, beam, column, wall and the foundation of the plate, deformed bar is an integral structure material. With the development of world economy and the vigorous development of infrastructure construction, real estate, the demand for deformed bar will be larger and larger
Product Advantages:
OKorder's Steel I-Beams are durable, strong, and resist corrosion, exact size, regular package, chemical and mechanical properties are stable.
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:
Manufacture: Hot rolled
Grade: BS4449
Certificates: ISO, SGS, BV, CIQ
Diameter: 6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,
22mm,25mm,28mm,32mm,36mm,40mm,50mm
Length: 6M, 9M,12M or as required
Packaging: Export packing, nude packing, bundled
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 |
FAQ:
Q1: How do we guarantee the quality of our products?
A1: 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.
Q2: Can stainless steel rust?
A2: Stainless does not "rust" as you think of regular steel rusting with a red oxide on the surface that flakes off. If you see red rust it is probably due to some iron particles that have contaminated the surface of the stainless steel and it is these iron particles that are rusting. Look at the source of the rusting and see if you can remove it from the surface.
Q3: How do we guarantee the quality of our products?
A3: 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:What are the different types of steel rebars used in retaining wall constructions?
- There are several types of steel rebars commonly used in retaining wall constructions, including plain carbon steel rebars, epoxy-coated rebars, galvanized rebars, and stainless steel rebars. Each type has its own unique properties and benefits, such as increased corrosion resistance or enhanced durability, allowing for the selection of the most suitable option based on the specific requirements of the retaining wall project.
- Q:What are the advantages of using steel rebars over other reinforcement materials?
- There are several advantages of using steel rebars over other reinforcement materials. Firstly, steel rebars have high tensile strength, which means they can withstand heavy loads and prevent structural failure. Secondly, steel rebars provide excellent bonding with concrete, ensuring a strong and durable composite material. Additionally, steel rebars are readily available and cost-effective compared to alternative materials like fiberglass or carbon fiber. Lastly, steel rebars have good resistance to fire, corrosion, and natural elements, making them suitable for various construction projects in different environments.
- Q:Is the shear wall concealed column stirrup steel or round steel? What are you asking for?
- Specify the construction drawing is HPB300 is hot rolled round bar, that is HRB335, HRB400 is the hot rolled ribbed bar. Don't call thread steel, this name has long been abandoned. Simple, light marked wall column reinforcement detail construction drawing on the diameter and spacing is not encrypted, what non encrypted area, like the dense spacing.
- Q:How are steel rebars installed in concrete slabs?
- Steel rebars are installed in concrete slabs through a process known as reinforcing. This process involves placing the rebars in a specific pattern or layout within the concrete slab to provide additional strength and support. Firstly, the area where the concrete slab will be poured is prepared by excavating and leveling the ground. This is followed by placing a layer of compacted gravel or crushed stone, known as the base, to provide a stable foundation for the slab. Once the base is in place, the rebars are positioned in the desired locations within the slab. The rebars are typically arranged in a grid-like pattern, with one layer of horizontal rebars placed parallel to each other and another layer of vertical rebars placed perpendicular to the horizontal ones. The spacing and diameter of the rebars depend on the design requirements and the intended load capacity of the slab. To ensure proper positioning, plastic bar supports or chairs are used to lift the rebars off the ground and keep them in place. The rebars are often tied together at the intersections using wire or metal ties to maintain their relative positions during the concrete pouring process. Once the rebars are properly positioned, the concrete is poured over them. The concrete mixture is carefully poured and spread evenly across the entire area of the slab, making sure it fully encases the rebars. Vibrating tools may be used to remove any air bubbles and ensure proper consolidation of the concrete around the rebars. After the concrete has been poured, it is left to cure and harden. During this time, the rebars provide reinforcement to the concrete, increasing its strength and load-bearing capacity. Once fully cured, the concrete slab with the embedded rebars becomes a durable and structurally sound element capable of withstanding various loads and stresses. In summary, steel rebars are installed in concrete slabs by positioning them in a grid-like pattern and then pouring the concrete over them. This reinforcing process enhances the strength and durability of the concrete slab, making it suitable for a wide range of applications.
- Q:What is the maximum spacing allowed between steel rebars in concrete slabs?
- The maximum spacing allowed between steel rebars in concrete slabs typically depends on various factors such as the thickness of the slab, the load it will bear, and the design requirements. However, as a general guideline, the maximum spacing is often specified to be around 3 times the slab thickness or 18 inches (whichever is less) to ensure proper reinforcement and structural integrity.
- Q:Are steel rebars suitable for use in extreme temperatures?
- Yes, steel rebars are suitable for use in extreme temperatures. Steel has a high melting point and can withstand both very high and very low temperatures without compromising its structural integrity. This makes steel rebars a reliable choice for construction in extreme temperature conditions.
- Q:How do steel rebars contribute to the load-bearing capacity of structures?
- Steel rebars contribute to the load-bearing capacity of structures by providing reinforcement and strength to concrete. When embedded within the concrete, rebars increase its tensile strength, allowing it to withstand higher loads and prevent cracking or collapsing. This reinforcement enhances the overall structural integrity and durability of buildings, bridges, and other construction projects.
- Q:What is the difference between carbon steel and stainless steel rebars?
- Carbon steel and stainless steel rebars are both types of steel reinforcement used in construction, but they have distinct differences in composition and properties. Carbon steel rebars are made from a combination of iron and carbon, with small amounts of other elements such as manganese and copper. The carbon content in these rebars typically ranges from 0.15% to 0.60%. Carbon steel rebars are strong, durable, and cost-effective. They have good tensile strength, which is crucial for reinforcing concrete structures. However, they are susceptible to corrosion if not properly protected, especially in environments with high moisture or exposure to chemicals. On the other hand, stainless steel rebars are made from a combination of iron, chromium, nickel, and other alloying elements. The chromium content in stainless steel is typically above 10.5%, which creates a protective layer of chromium oxide on the surface of the rebar, preventing corrosion. Stainless steel rebars have excellent corrosion resistance, even in harsh environments with high humidity, saltwater, or exposure to chemicals. They are also highly durable and have high tensile strength, similar to carbon steel rebars. The main difference between carbon steel and stainless steel rebars is their corrosion resistance. Carbon steel rebars require proper protective coatings, such as epoxy or galvanization, to prevent corrosion. On the other hand, stainless steel rebars have inherent corrosion resistance due to the presence of chromium oxide layer, eliminating the need for additional coatings. Another difference is the cost. Carbon steel rebars are generally cheaper compared to stainless steel rebars. However, the total cost of a project should also consider the long-term maintenance costs associated with corrosion protection measures required for carbon steel rebars. In summary, carbon steel rebars are strong and cost-effective but require additional corrosion protection measures, while stainless steel rebars have excellent corrosion resistance and durability but come at a higher cost. The choice between the two depends on the specific project requirements, budget, and expected environmental conditions.
- Q:Can steel rebars be used in wastewater storage tanks?
- Yes, steel rebars can be used in wastewater storage tanks. Steel rebars are commonly used as reinforcement in concrete structures, including wastewater storage tanks. The rebars provide tensile strength to the concrete, making it more resistant to cracking and improving the overall structural integrity of the tank. Additionally, steel rebars are corrosion-resistant, which is crucial in wastewater storage tanks where exposure to corrosive elements is inevitable. Therefore, using steel rebars in wastewater storage tanks is a common and effective practice in the construction industry.
- Q:What is the corrosion resistance of steel rebars?
- The surface of steel rebars forms a protective layer, known as a passive film, which provides excellent corrosion resistance. This film is created when the steel interacts with the surrounding environment. By acting as a barrier, the passive film prevents oxygen and moisture from reaching the steel, thus inhibiting corrosion. There are various factors that contribute to the corrosion resistance of steel rebars. For example, the presence of alloying elements like chromium, nickel, and molybdenum improves the formation and stability of the passive film, making the rebars more resistant to corrosion. Additionally, the composition and microstructure of the steel rebars play a crucial role in determining their resistance to corrosion. However, it is important to note that the corrosion resistance of steel rebars can be compromised under certain conditions. High levels of chlorides, such as those in marine environments or de-icing salts, can accelerate corrosion and reduce the effectiveness of the passive film. Similarly, exposure to acidic or alkaline environments can also negatively affect the corrosion resistance of steel rebars. To minimize the risk of corrosion, various protective measures can be taken. These include applying coatings or paints to the rebars, using corrosion inhibitors, or implementing cathodic protection systems. Regular inspection, maintenance, and proper design and construction practices are also essential to ensure the long-term corrosion resistance of steel rebars in different applications. In conclusion, the excellent corrosion resistance of steel rebars is due to the formation of a protective passive film. However, this resistance can be influenced by factors such as the environment, alloying elements, and microstructure. By implementing appropriate protective measures and maintenance practices, the corrosion resistance of steel rebars can be effectively maintained, ensuring their durability and structural integrity.
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Deformed Bar Hot Rolled High Quality BS449 or ASTM
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 200000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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