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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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: How do steel rebars enhance the bond between concrete and reinforcement?
- The bond between concrete and reinforcement is improved by steel rebars through various mechanisms. Firstly, the inclusion of rebars in concrete enhances the mechanical interlock between the two materials. As concrete surrounds the rebars, it fills the spaces between the steel bars, resulting in a strong bond once it solidifies. This mechanical interlock effectively prevents the separation of concrete and reinforcement, particularly when subjected to tensile loads. Secondly, steel rebars augment the bond by offering additional surface area for adhesion. The rough texture of the rebars allows the concrete to firmly grip the steel surface, leading to a stronger bond. This adhesion is further enhanced by the formation of corrosion products on the rebars over time, creating an even rougher surface and increasing the bond strength between the concrete and reinforcement. Thirdly, rebars serve as load transfer devices in concrete structures. When external forces act on the structure, the rebars distribute and transfer these forces to the surrounding concrete. This load transfer mechanism significantly improves the overall structural integrity and performance of the concrete element. Furthermore, steel rebars also reinforce the bond between concrete and reinforcement by their ability to resist deformation. Under tensile loads, the rebars elongate and absorb the stress, preventing the concrete from developing cracks. This prevents the formation of cracks that could compromise the bond between the two materials. To summarize, steel rebars enhance the bond between concrete and reinforcement by providing mechanical interlock, increased surface area for adhesion, load transfer capabilities, and resistance to deformation. Together, these factors contribute to the overall strength, durability, and performance of reinforced concrete structures.
- Q: Excuse me, Shagang steel steel, what is the sign of
- Steel is known as hot rolled ribbed bar. Ordinary hot rolled steel bars are made up of HRB and the minimum yield point of the brand. H, R, and B are the first letters in English for hot-rolled (Hotrolled), ribbed (Ribbed) and reinforced (Bars) three words. Hot rolled ribbed bar is divided into two levels, HRB335 (old No. 20MnSi), three HRB400 (20MnSiV, 20MnSiNb, old No. 20Mnti), four grade HRB500 three grade
- Q: What is the role of steel rebars in the construction of parking structures?
- Steel rebars play a crucial role in the construction of parking structures as they reinforce the concrete, enhancing its strength and durability. Rebars provide structural support, preventing cracking and ensuring the parking structure can withstand heavy loads and potential stresses over time. They help distribute the weight evenly, making the structure more stable and resistant to external forces such as earthquakes or impact.
- Q: Can steel rebars be used in the construction of recreational facilities?
- Yes, steel rebars can be used in the construction of recreational facilities. Steel rebars provide structural strength and durability, making them suitable for various recreational structures such as sports arenas, swimming pools, and playgrounds. They are commonly used to reinforce concrete and ensure the safety and longevity of these facilities.
- Q: Can steel rebars be used in the construction of airports and terminals?
- Yes, steel rebars can be used in the construction of airports and terminals. Steel rebars are commonly used in reinforced concrete structures to provide strength and reinforce the concrete. In the construction of airports and terminals, where large spans and heavy loads are common, steel rebars are essential for ensuring the structural integrity and durability of the buildings. They help in withstanding the weight of aircraft, the constant movement of people and goods, and the overall demands of such high-traffic facilities.
- 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: How are steel rebars used in the construction of tunnels and underground passages?
- Steel rebars are used in the construction of tunnels and underground passages to reinforce the concrete structures. They are embedded within the concrete to increase its strength and prevent cracking or collapsing under the pressure exerted by the surrounding soil or water. The rebars provide structural integrity and durability, ensuring the tunnels and passages can withstand the forces and stresses they encounter.
- Q: How long do steel rebars last in structures?
- Steel rebars can last for several decades in structures, typically ranging from 50 to 100 years, depending on various factors such as the quality of the steel, environmental conditions, and maintenance practices.
- Q: How do steel rebars resist fatigue and creep?
- Steel rebars resist fatigue and creep through their inherent material properties and proper design considerations. Fatigue refers to the gradual weakening of a material under repeated cyclic loading. Steel rebars are specifically designed to withstand fatigue by their high tensile strength and ductility. The tensile strength of steel allows it to resist the stress caused by cyclic loading, while its ductility allows it to deform without fracturing. This combination of properties enables steel rebars to endure numerous load cycles without failure. Additionally, steel rebars can be further enhanced to resist fatigue by employing various techniques such as heat treatment, surface coatings, and alloying. These methods improve the material's fatigue resistance and extend its service life under cyclic loading conditions. Creep, on the other hand, refers to the gradual deformation of a material under constant sustained loading. Steel rebars resist creep through their high stiffness and resistance to plastic deformation. The stiffness of steel allows it to maintain its shape and resist deformation under sustained loads. Moreover, the resistance to plastic deformation prevents excessive stretching or elongation, which can lead to creep failure. Proper design considerations also play a crucial role in enhancing the resistance of steel rebars to fatigue and creep. This includes ensuring appropriate reinforcement spacing, proper anchorage, and adequate concrete cover to protect the rebars from external factors that could induce fatigue or creep. In summary, steel rebars resist fatigue and creep due to their high tensile strength, ductility, stiffness, and resistance to plastic deformation. By utilizing proper design considerations and potentially implementing additional techniques, steel rebars can withstand cyclic loading and sustained loads for extended periods, ensuring their durability and structural integrity.
- Q: How do steel rebars contribute to the overall architectural design of a structure?
- Steel rebars contribute to the overall architectural design of a structure by providing strength and reinforcement to concrete. They help distribute loads and resist tension, allowing for the creation of taller and more complex structures. Rebars also enhance the durability and longevity of a building, ensuring its structural integrity and safety. Additionally, they enable architects to design structures with larger open spaces and imaginative shapes, as rebars can be bent and molded to fit various architectural designs.
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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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