Deformed Bar Hot Rolled High Quality BS 4449 GB HRB400
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000000 m.t./month
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Item specifice
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: What makes stainless steel stainless?
A1: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.
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: Can stainless steel rust?
A3: 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.
- Q:How are steel rebars measured and priced?
- Steel rebars are measured and priced based on their weight and length. The weight of a steel rebar is usually measured in pounds or kilograms, while the length is measured in feet or meters. The weight of a rebar is determined by its diameter, which is typically measured in millimeters or inches. To calculate the price of a steel rebar, the weight is multiplied by the cost per unit weight. The cost per unit weight can vary depending on factors such as the type of steel used, the market demand, and the supplier. This price is usually quoted in terms of cost per pound or cost per kilogram. In addition to the weight and length, other factors may also influence the pricing of steel rebars. These can include factors such as the grade of steel, the manufacturing process, and any additional treatments or coatings applied to the rebar. It is important to note that the pricing of steel rebars can vary from supplier to supplier, so it is advisable to obtain multiple quotes and compare them before making a purchasing decision.
- Q:What is the thermal expansion coefficient of steel rebars?
- The thermal expansion coefficient of steel rebars typically ranges between 10 and 12 x 10^-6 per degree Celsius.
- Q:Can steel rebars be used in other construction materials apart from concrete?
- Yes, steel rebars can be used in other construction materials apart from concrete. They can also be utilized in masonry structures, timber frames, and even in composite materials. The high strength and durability of steel rebars make them suitable for reinforcing various construction materials, enhancing their structural integrity and load-bearing capacity.
- Q:How to judge the quality of thread steel?
- Sampling sample. Do tensile, bending, and impact tests.
- Q:Can steel rebars be used in the construction of sports stadiums?
- Yes, steel rebars can be used in the construction of sports stadiums. Steel rebars are commonly used in reinforced concrete structures, providing strength and stability to the overall construction. Sports stadiums require durable and robust structures to accommodate large crowds and withstand various loads, making steel rebars an ideal choice for their construction.
- Q:How do steel rebars help in reducing construction time?
- Steel rebars contribute to the reduction of construction time in several ways. Firstly, they enhance the strength and durability of concrete structures, enabling builders to employ quicker construction techniques. This obviates the necessity for slower and more time-consuming methods as the rebars provide sufficient support for the structure's weight. Secondly, the reinforcement of concrete with steel rebars enhances the overall structural integrity of the building. Consequently, builders can employ thinner concrete sections without compromising the structure's strength. These thinner sections require less material and can be poured and cured more rapidly and easily, thus saving construction time. Thirdly, the installation of steel rebars is a speedy process due to their easy handling and installation characteristics. They can be conveniently cut and bent to fit the desired shape and size, facilitating efficient installation. Consequently, the requirement for complicated and time-consuming formwork is eliminated, resulting in a reduction in construction time. Fourthly, steel rebars offer design and construction flexibility, enabling the utilization of innovative and efficient building techniques. They can be utilized in a variety of applications, including beams, columns, and slabs, granting architects and engineers the freedom to design structures that can be rapidly and efficiently constructed. Lastly, steel rebars provide additional resistance to natural disasters such as seismic activity and extreme weather conditions. By reinforcing concrete with rebars, structures become more resilient, reducing the risk of damage and expediting the construction process. This is particularly crucial in areas that are prone to earthquakes or adverse weather conditions. In conclusion, steel rebars play a pivotal role in reducing construction time by providing strength, durability, flexibility, ease of installation, and the ability to reinforce concrete structures. These qualities facilitate faster construction methods and efficient use of materials.
- Q:What are the different types of steel rebars used in beams and columns?
- There are primarily two types of steel rebars commonly used in beams and columns: carbon steel rebars and stainless steel rebars. Carbon steel rebars are the most commonly used and provide good strength and durability. Stainless steel rebars, on the other hand, offer excellent corrosion resistance and are often used in structures exposed to harsh environments or in areas with high humidity levels.
- Q:What are the different types of steel rebars used in precast concrete constructions?
- There are several different types of steel rebars commonly used in precast concrete constructions. These rebars are designed to provide reinforcement and increase the strength and durability of the concrete structure. 1. Mild Steel Rebars: These are the most commonly used type of rebars due to their affordability and easy availability. They have a low carbon content and are suitable for most precast concrete applications. 2. High Strength Deformed (HSD) Rebars: These rebars have a higher yield strength compared to mild steel rebars. They are made by hot rolling process and have deformations on their surface to provide a better grip with concrete. HSD rebars are commonly used in heavy-duty structures or where additional strength is required. 3. Carbon Steel Rebars: Carbon steel rebars are made from carbon steel alloys and have a higher carbon content compared to mild steel rebars. They offer improved strength and durability and are often used in precast concrete constructions that require high tensile strength. 4. Epoxy-Coated Rebars: These rebars are coated with an epoxy layer to protect them from corrosion and increase their lifespan. Epoxy-coated rebars are commonly used in precast concrete constructions that are exposed to harsh environments or have high moisture content. 5. Stainless Steel Rebars: These rebars are made from stainless steel alloys, which provide excellent resistance to corrosion. Stainless steel rebars are used in precast concrete constructions that are exposed to corrosive substances, such as seawater or chemicals. It is important to select the appropriate type of rebar for a precast concrete construction based on the specific requirements of the project, including the load-bearing capacity, durability, and environmental conditions. Consulting with a structural engineer or a construction professional can help determine the best type of rebar for a particular application.
- Q:What is the maximum allowable stress for steel rebars?
- The maximum allowable stress for steel rebars is typically determined by design codes and standards, which vary depending on the specific application and country. However, in general, the maximum allowable stress for steel rebars is usually around 0.6 times the yield strength of the steel.
- Q:What is the process of straightening steel rebars?
- The process of straightening steel rebars involves using specialized machinery or tools to remove any bends or deformations in the rebars. This typically includes clamping the rebars in a straightening machine or using hydraulic forces to gently bend them back into their original shape. The rebars are carefully aligned and straightened to meet the required specifications, ensuring their structural integrity and effectiveness in construction projects.
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Deformed Bar Hot Rolled High Quality BS 4449 GB HRB400
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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