Hot Rolled Deformed Bar ou Reinforcement Bar ASTM A615 6mm-50mm
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 100000 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: 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: What makes stainless steel stainless?
A2: 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.
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: All knowledge about thread steel!
- The grade of thread steel is composed of the minimum value of the yield point of HRB and 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 HRB335 (old No. 20MnSi), HRB400 (20MnSiV, 20MnSiNb, veteran, 20Mnti), HRB500 three brands. Main uses: widely used in housing, bridges, roads and other civil engineering construction.
- Q: Thread steel 20*9 one is 2.001T. How many pieces of this one?
- Thread steel 20*9, one is 2.001T, and this one has about 90. Thread steel 20*9, parameter is 20mm in diameter, length is 9m.
- Q: What is the process of pre-stressing steel rebars?
- The process of pre-stressing steel rebars involves applying a predetermined amount of stress or force to the rebar before it is placed in concrete. This is typically done by stretching the rebar using hydraulic jacks or other mechanical means. The purpose of pre-stressing is to introduce a compressive force in the rebar, which helps counteract the tensile forces that the concrete will exert on the structure. This technique enhances the strength and durability of the concrete structure, making it more resistant to cracking and deformation under load.
- Q: What are the different types of steel rebars used in tunnel constructions?
- There are several types of steel rebars commonly used in tunnel constructions, including deformed steel bars, epoxy-coated rebars, stainless steel rebars, and galvanized rebars. These rebars offer various benefits such as increased strength, corrosion resistance, and durability, making them suitable for different tunnel construction requirements.
- Q: How do steel rebars prevent concrete from cracking?
- Concrete cracking is prevented by steel rebars, as they reinforce it and increase its strength. When concrete is poured, it is initially in a liquid state and lacks tensile strength, making it prone to cracking under tension. However, steel rebars are embedded within the concrete structure, creating a strong bond as it hardens. The rebars function as a framework within the concrete, evenly distributing tensile forces throughout the structure. When external forces, such as load or temperature changes, act on the concrete, the rebars resist the tensile stresses that would otherwise cause cracks. This is because steel possesses significantly higher tensile strength compared to concrete. Furthermore, steel rebars also assist in managing cracks that may arise due to shrinkage during the concrete curing process. As the concrete dries and hardens, a chemical reaction causes it to shrink. This shrinkage has the potential to cause cracks, but the presence of rebars restrains excessive expansion or contraction, reducing the likelihood of cracking. Not only do steel rebars prevent cracks, but they also enhance the overall structural integrity of the concrete. They aid in evenly distributing loads, resulting in a concrete structure that is more resistant to bending, shearing, and other forces. This reinforcement ensures that the concrete can withstand anticipated loads and maintain stability over time. In summary, steel rebars play a vital role in preventing concrete from cracking by providing tensile strength and reinforcement. Through the distribution of tensile forces, control of shrinkage, and enhancement of structural integrity, they ensure that the concrete remains strong, durable, and crack-resistant. As a result, the lifespan of the concrete is prolonged, and its stability is ensured.
- Q: What are the different types of corrosion protection for steel rebars?
- There are several types of corrosion protection methods for steel rebars, including epoxy coatings, galvanization, concrete cover, and cathodic protection.
- Q: How do steel rebars affect the overall strength of a structure?
- Steel rebars significantly enhance the overall strength of a structure by providing reinforcement and increasing its tensile strength. They act as a skeleton within the concrete, distributing the load more evenly and preventing cracks or failures.
- Q: What is the process of reinforcing concrete columns with steel rebars?
- To ensure the structural integrity and strength of concrete columns, the process of reinforcing them with steel rebars involves several steps. Initially, the required load-bearing capacity and other structural considerations are taken into account to determine the design and specifications of the concrete column. This involves deciding on the size, shape, and placement of the rebars within the column. Following this, temporary molds or frameworks in the desired shape and dimensions of the column are constructed as part of the concrete formwork preparation. These molds provide support and containment for the concrete during the pouring and curing stages. Once the formwork is ready, the steel rebars are meticulously positioned and fastened within it. They are typically arranged in a specific pattern to maximize reinforcement and strength, including vertical bars running along the length of the column and horizontal bars that wrap around the vertical ones. To maintain their position and prevent movement during the pouring of the concrete, the rebars are often tied together at intersections using wire or other fasteners. This ensures that the rebars are effectively embedded within the concrete and can properly reinforce the column. Once the rebars are securely in place, the concrete is poured into the formwork. The concrete mixture is carefully applied and consolidated to fully surround and encase the rebars, creating a composite material that is more resistant to cracking and deformation. After the concrete is poured, it is left to cure and harden, typically for a period of several days or weeks. This allows the concrete to gain strength and durability, ensuring effective bonding between the rebars and the concrete and enabling the column to bear the intended loads. Once the concrete has fully cured, the formwork is removed, revealing the reinforced concrete column. The rebars should be completely embedded within the concrete, providing additional strength and support to withstand the applied loads. In summary, reinforcing concrete columns with steel rebars involves careful planning, positioning, and securing of the rebars within the formwork, followed by the pouring, curing, and removal of the formwork. This process guarantees that the resulting reinforced concrete column is structurally sound and capable of withstanding the intended loads and forces.
- Q: What is the recommended diameter of steel rebars for beam reinforcement?
- The recommended diameter of steel rebars for beam reinforcement typically ranges from 10mm to 25mm, depending on the specific design requirements and load conditions of the beam.
- Q: What are the different methods of connecting steel rebars together?
- The connection of steel rebars can be achieved through various methods, depending on the specific needs of the construction project. Here are some commonly used techniques: 1. Lap Splicing: This method involves overlapping two rebars and securing them together using steel wire or bars. It is a cost-effective approach, although it requires longer rebars. 2. Mechanical Splicing: By using a mechanical coupler such as a sleeve or collar, two rebars can be connected. This method offers a strong and reliable connection and allows for flexibility in rebar positioning. It is faster and more efficient than lap splicing. 3. Welding: Steel rebars can be connected by heating and fusing their ends together using an electric arc. This creates a permanent and robust connection. However, welding demands skilled labor and can be time-consuming and expensive. 4. Threaded Couplers: Similar to mechanical splicing, this method involves threading the ends of rebars and connecting them using a threaded coupler. It provides a reliable connection and is commonly used in larger construction projects. 5. Grout Sleeve Splicing: This technique incorporates a grout-filled sleeve between two rebars to establish a connection. The grout enhances strength and stability, making it suitable for seismic zones or areas requiring high strength and ductility. 6. Reinforcing Bar Couplers (RBC): RBC is a proprietary method that employs a threaded sleeve filled with epoxy resin to connect rebars. It offers high load capacity, ease of installation, and resistance to corrosion. To determine the most appropriate method for connecting steel rebars in a specific construction project, it is crucial to consult structural engineers and adhere to building codes and regulations.
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Hot Rolled Deformed Bar ou Reinforcement Bar ASTM A615 6mm-50mm
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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