Prime Hot Rolled Coil China Supplier/ HRC

Prime Hot Rolled Coil China Supplier/ HRC

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 23 m.t.

Supply Capability:: 10000 m.t./month

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Product Description:

1) introduction

Hot rolled coil is used for continuous casting slab or slab as raw material, after reheating furnace heating, scales entered the roughing mill in the high pressure water, roughing cut is expected by the head, tail, and then enter the finishing mill, the implementation of the computer controlled rolling, finally after rolling through the laminar cooling (computer controlled cooling rate) and coiling machine coiling, become straight hair volume. Hair straightener roll head, tail often forms a tongue shape and fishtail, thickness, width of poor accuracy, edge has wavy, folding, tower and other defects. The volume weight heavier, steel coil diameter is 760mm. (general pipe industry like use. )

2) characteristics

Because there is no after annealing treatment, the hardness is very high (HRB greater than 90), mechanical processing performance is poor, only a simplebending process has less than 90 degree directional (direction perpendicular to the rolled).

3) use

Hot rolled products with high strength and good toughness, easy processing and good forming can be excellent performance of welding, which is widely used in ships, cars, bridges, buildings, machinery, boiler, pressure vesselmanufacturing industry.

The scope of application:

(1) after annealing processing into the common cold;

(2) processing galvanized galvanized unit before the annealing treatment;

(3) the basic do not need to process the panel.

4) classification

Carbon steel plate, carbon plate, low alloy plate, ship plate, bridge plate, boiler plate, container plate etc.. Rolling hard volumes: under normal temperature,the hot pickling volumes of continuous rolling.

Hot rolled steel strip products include steel (roll) and the shear of steel plate.And steel (coils) can be divided into straight and finishes volume (the volume,smooth rolling and slitting roll).

Product Photo:

Prime Hot Rolled Coil China Supplier/ HRC

Q:How are steel coils used in the production of automotive components?: Steel coils are used in the production of automotive components through a process called stamping, where the coils are fed into a machine that cuts and shapes the steel into various parts such as body panels, chassis components, and engine parts. These steel components are then assembled to create the final automotive product.

Q:What are the challenges in coil blanking for high-strength steel?: Coil blanking for high-strength steel poses several challenges due to the unique properties of this material. One of the main challenges is the high tensile strength of the steel, which makes it more difficult to cut and blank compared to conventional steel grades. The high-strength steel is typically harder and less malleable, leading to increased tool wear and higher cutting forces. This requires the use of specialized cutting tools that are capable of withstanding these extreme conditions. Additionally, the increased cutting forces can lead to more vibration, which may affect the accuracy and quality of the blanks. Another challenge is the spring-back effect that high-strength steel exhibits after cutting. This means that the material tends to revert to its original shape, making it difficult to achieve precise dimensions and tolerances in the blanks. This issue requires careful consideration and adjustment of the cutting parameters to minimize the spring-back effect. Moreover, high-strength steel often has a higher carbon content, which can result in increased work hardening during the blanking process. Work hardening causes the material to become even harder and more brittle, making it more prone to cracks and fractures. To overcome this challenge, proper lubrication and cooling techniques are crucial to reduce heat buildup and minimize the risk of cracking. Furthermore, the increased strength of the steel may also affect the overall production efficiency. The higher cutting forces and tool wear mean that the cutting speeds may need to be reduced, leading to longer processing times. This can impact the productivity and throughput of the coil blanking process, requiring careful optimization and planning. In summary, the challenges in coil blanking for high-strength steel include increased cutting forces, tool wear, spring-back effect, work hardening, and reduced production efficiency. Overcoming these challenges requires specialized cutting tools, precise cutting parameters, proper lubrication and cooling techniques, and careful optimization of the production process.

Q:How are steel coils loaded onto trucks or containers?: Steel coils are typically loaded onto trucks or containers using specialized equipment such as cranes or forklifts. The coils are carefully lifted and positioned onto the truck or container bed, ensuring proper weight distribution and securing them with straps or chains to prevent any movement during transportation.

Q:How are steel coils used in the manufacturing of fasteners?: Steel coils are commonly used in the manufacturing of fasteners because they provide a cost-effective and efficient way to produce large quantities of fasteners. The steel coils are unwound and then fed into machines that cut, shape, and thread the steel to create various types of fasteners such as screws, bolts, and nails. The high strength and durability of steel make it an ideal material for fasteners, ensuring secure and reliable connections in a wide range of applications.

Q:How are steel coils used in the production of bridges and infrastructure?: Steel coils are an essential component in the production of bridges and infrastructure. These coils are made from steel, which is a strong and durable material that can withstand heavy loads and harsh environmental conditions. In bridge construction, steel coils are used to manufacture the structural components such as beams, girders, and columns. These components provide the necessary strength and support to the bridge, allowing it to carry the weight of vehicles, pedestrians, and other loads. Steel coils are rolled into the desired shape, cut to the required length, and then welded or bolted together to create these structural elements. Additionally, steel coils are also used in the fabrication of bridge decks, which are the roadways or walkways on the bridge. These coils are processed to form steel plates, which are then assembled and secured onto the bridge structure. The steel plates provide a smooth and durable surface for vehicles and pedestrians to travel on. In terms of infrastructure, steel coils play a vital role in the construction of various structures such as buildings, stadiums, and industrial facilities. They are used to fabricate the primary support systems, including columns, beams, and trusses, which provide the necessary strength and stability to these structures. Steel coils are also used to create roofing and cladding systems, ensuring protection against weather elements and enhancing the overall aesthetics of the infrastructure. Furthermore, steel coils are often used in the production of reinforcing bars, commonly known as rebar. Rebar is essential for reinforcing concrete structures such as foundations, walls, and slabs. These coils are processed into various sizes and shapes, and then embedded within the concrete to increase its tensile strength and prevent cracking or collapsing under heavy loads. Overall, steel coils are a critical component in the production of bridges and infrastructure. Their strength, durability, and versatility make them an ideal material for constructing safe and reliable structures that can withstand the test of time.

Q:What are the different surface finishes of steel coils?: There are several different surface finishes of steel coils, including mill finish, galvanized finish, painted finish, and coated finish.

Q:How are steel coils used in the production of structural components?: Structural components heavily rely on steel coils throughout the production process. These coils, made from rolled steel strips, serve as the essential raw material for manufacturing various components like beams, columns, and trusses. The initial step in utilizing steel coils for structural components involves uncoiling the strip and cutting it into desired lengths. This can be achieved using diverse cutting methods, such as shearing or sawing. Once the coils are cut into appropriate lengths, they undergo further processing to shape them into specific structural components required for a particular project. One prevalent approach to shaping steel coils into structural components is through bending or forming. This necessitates the use of specialized machinery to bend or shape the steel into the desired configuration. For instance, a steel coil can be bent into an I-beam shape, commonly employed as a load-bearing component in buildings and bridges. Another technique employed for shaping steel coils into structural components is welding. This involves joining multiple steel coils together to create larger components. Welding is often employed to fabricate components like columns or trusses, which demand the combination of multiple steel coils to achieve the required strength and structural integrity. Once the steel coils have been shaped and formed into the desired structural components, they may undergo additional processes, including surface treatment or coating, to enhance their durability and resistance to corrosion. This ensures that the components will endure and withstand the demands of their intended applications. In conclusion, steel coils are crucial in manufacturing structural components as they provide the necessary raw material. Through cutting, bending, and welding processes, steel coils are transformed into the specific components needed for various construction projects. These components play a vital role in supporting the structural integrity of buildings, bridges, and other structures.

Q:What are the different types of steel coil surface appearances?: The different types of steel coil surface appearances include hot rolled, cold rolled, galvanized, coated, and textured finishes.

Q:For some reason, if you rub iron oxide or lodestone (both very crumbly, dark, mineral-like materials) into soft, unhardened steel, their particles actually get stuck into the surface of the steel (that is, darkening it). My question is, how does this work? How come iron oxide and lodestone can get stuck, and how come other materials (like silicone carbide, for example) do not?My second question is, are there any materials that can get stuck into steel, that is also blue in color, and how would I best obtain it?: If you look at the surface of untreated steel even with a low power microscope you will see a surface that is far from smooth, there are pits and occlusions dotting the surface. Steel is not polished when you see it this way so the only treatment to the surface was the extrusion process or forming done on it by the presses. Iron oxide has a very small particle size and when pulverized into a powder it can easily fill the pits and voids in the steel surface coloring it.

Q:Hi, I live in the Boston area and I'm trying to find a steel suppler that can provide mild steel for hobby welding. I can go through my job, but we only put in orders every couple of months so it's not very convenient. Also, the few suppliers I've found only sell in bulk. So if anyone knows where I can angle irons, flat bars, sheets, etc... by the piece it would greatly appreciated. Thanks: They will sell any quantity of metal and even cut it to size - my experience has been that their prices are not wildly out of line for single pieces of full length stock compared to buying singles where you have to buy a minimum. They also may have sizes that ordinary places consider odd. I was looking for 5/8 square 16 gauge and was told it would have to be shipped in from Houston (to Dallas) by my nearest supplier and found it in stock at MetalSM. But check if you get something odd - the 5/8 cost more than 3/4 at both places and MetalSM actually gave me 3/4 but took it back even though I had cut it. Also check the regular steel suppliers in your area as well as retail welders metal supply places.

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