High grade hot- rolled strip
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Hot rolled strip, the English name of Hot - rolled strip, also known as Hot rolled steel belt, commonly known as is a Hot plate. Hot rolled strip width less than or equal to 600 mm, the thickness of 0.35-200 - mm steel plate and the thickness of 1.2-25 mm steel belt.
The relevant classification
The editor
Hot rolled steel plate is divided into structural steel, mild steel, welding steel, then according to the steel of various steel products to find what you need to check the specific density and composition of the steel. Hot rolled steel plate hardness is low, easy processing, good extensibility. Hot rolled strip steel products including steel belt (volume) and has its shear of steel plate. Steel belt (volume) can be divided into straight hair volume and finishing (volume classification, formation and slitting roll).
Hot rolled steel plate strength is relatively low, the surface quality almost (oxidation, low roughness), but the plasticity is good, generally for the medium plate, manufacture, high strength, high hardness, high surface finish, generally for sheet, can be used as a drawing board.
2 the difference between
The editor
Cold rolled steel sheet due to a certain degree of strain hardening, toughness is low, but can reach better showed, used for cold bending spring pieces and parts, at the same time due to the yield point is close to the tensile strength, so no foresight to danger, in use process in the load exceeds allowable load are prone to accidents.
1) cold plate using cold processing surface without scale, good quality. Hot rolled steel plate, surface of oxide skin are processed using the hot rolled plate thickness with the poor.
2) hot rolled steel toughness and surface smoothness is poor, the price is low, and the extension of manufacture and resilient, but the price is more expensive.
3) rolling is divided into cold rolled and hot rolled steel plate, distinguish between point for recrystallization temperature.
4) cold rolling: generally used in the production of strip cold rolling, the rolling speed is higher. The temperature of the hot rolled steel plate, the temperature of the hot rolled and forged close.
5) don't plating surface of hot rolled steel plate into dark brown, not plated cold plate surface is gray, from the smooth degree of surface after plating will distinguish, lengzha board smoothness is higher than that of hot rolled steel plate.
Data reference
标准及牌号 | 国家标准 | 相当国外标准 | 作用与用途 | ||
材料类别 | 执行标准 | 牌号 | 标准号 | 牌号 | 适应于制造冷成型加工的零件 |
低碳钢卷板 | Q/BQB302 | SPHC | JISG3131 | SPHC | |
SPHD | SPHD | ||||
SPHE | SPHE | ||||
SAE1006/SAE1008 | SAE1006/SAE1008 | ||||
XG180IF/200IF | XG180IF/200IF | ||||
一般结构用钢 | GB/T912-1989 | Q195 | JISG3101 | SS330 | 用于建筑、桥梁、船舶、车辆等一般构建 |
Q235B | SS400 | ||||
SS400 | SS490 | ||||
ASTMA36 | SS540 |
- Q:What are the different surface pickling options for steel strips?
- There are several surface pickling options available for steel strips, including acid pickling, alkaline pickling, and electropolishing. Acid pickling involves immersing the steel strips in an acid solution to remove surface oxides and impurities. Alkaline pickling uses an alkaline solution to clean the surface and remove contaminants. Electropolishing is an electrochemical process that smooths and cleans the surface of the steel strips. Each option has its own advantages and is chosen based on specific requirements and desired surface finish.
- Q:What are the dimensional inspection methods for steel strips?
- Some common dimensional inspection methods for steel strips include calipers, micrometers, optical comparators, laser scanners, and coordinate measuring machines (CMMs). These tools are used to measure dimensions such as thickness, width, length, and straightness of the steel strips to ensure they meet the required specifications.
- Q:How do steel strips contribute to reducing transportation costs in various applications?
- Steel strips contribute to reducing transportation costs in various applications in several ways. Firstly, steel strips are lightweight yet strong, making them an ideal material for the construction of transportation vehicles such as automobiles, airplanes, and trains. The use of steel strips in these vehicles helps reduce their overall weight, resulting in improved fuel efficiency and lower transportation costs. With lighter vehicles, less fuel is required to move them, leading to reduced operating expenses and lower emissions. Secondly, steel strips are highly durable and resistant to wear and tear. This durability ensures that transportation vehicles constructed using steel strips have a longer lifespan, requiring less frequent repairs and replacements. This, in turn, reduces maintenance costs and downtime, resulting in increased operational efficiency and lower transportation costs. Furthermore, steel strips are versatile and can be easily shaped and formed into various components and structures. This flexibility allows for efficient design and manufacturing processes, leading to reduced production costs. By using steel strips in the fabrication of transportation vehicles, manufacturers can streamline their operations, optimize material usage, and minimize waste, all of which contribute to lower transportation costs. Moreover, steel strips are readily available and can be produced in large quantities, making them a cost-effective option for transportation applications. The abundance of steel strips in the market ensures competitive pricing, enabling businesses to procure the material at reasonable rates. This availability and affordability make steel strips an attractive choice for transportation manufacturers, allowing them to reduce their overall production costs and subsequently lower transportation costs. In summary, steel strips contribute to reducing transportation costs in various applications by providing lightweight yet strong construction materials, ensuring durability and longevity, offering versatility in design and manufacturing, and being readily available and cost-effective. By utilizing steel strips in transportation vehicles, businesses can optimize their operations, improve fuel efficiency, reduce maintenance and production costs, and ultimately lower overall transportation expenses.
- Q:How do steel strips compare to other materials in terms of durability?
- Steel strips are highly durable compared to other materials. They have excellent strength, resilience, and resistance to corrosion, making them ideal for various applications where durability is crucial.
- Q:Can steel strips be recycled?
- Yes, steel strips can be recycled.
- Q:How are steel strips used in the production of pressure vessels?
- Steel strips are commonly used in the production of pressure vessels due to their durability, strength, and flexibility. These strips are typically made from high-quality steel alloys that can withstand high pressure and temperature conditions. In the manufacturing process, steel strips are often cut and shaped to form the desired dimensions and shape of the pressure vessel. This can be done through various methods such as shearing, laser cutting, or waterjet cutting. The strips are then formed into cylindrical or spherical shapes using techniques like rolling, bending, or welding. Once the desired shape is achieved, the steel strips are welded or joined together to create a seamless and leak-proof vessel. Welding is a critical step in pressure vessel fabrication as it ensures the structural integrity and prevents any potential leaks or failures under pressure. Additionally, steel strips can be used to reinforce the pressure vessel by adding extra layers or reinforcing rings. This helps to enhance the overall strength of the vessel and ensures its ability to withstand high internal pressures. Furthermore, steel strips are often coated or treated to protect against corrosion and enhance the longevity of the pressure vessel. Coatings such as epoxy, paint, or galvanization can be applied to prevent rusting and improve resistance to chemical reactions. Overall, steel strips play a crucial role in the production of pressure vessels by providing the necessary strength, flexibility, and durability required to withstand the demanding conditions and ensure the safety and reliability of these vessels.
- Q:What are the common surface finishes for galvanized steel strips?
- Some common surface finishes for galvanized steel strips include: 1. Regular Spangle: This finish is characterized by a shiny, crystalline pattern on the surface. It is achieved by allowing the zinc coating to solidify naturally during the galvanization process. 2. Mini Spangle: As the name suggests, this finish has smaller and more closely spaced spangles compared to the regular spangle. It provides a smoother and more uniform appearance. 3. Zero Spangle: This finish has no visible spangles on the surface, giving it a matte or dull appearance. It is achieved by applying a special chemical treatment during the galvanization process. 4. Skin Pass: This finish is obtained by passing the galvanized steel strip through a set of rollers that compress and flatten the surface. It helps to improve the flatness and smoothness of the strip. 5. Bright Finish: This finish is achieved by applying a thin, transparent organic coating over the galvanized surface. It enhances the aesthetics and provides additional protection against corrosion. It is important to note that the choice of surface finish may depend on the specific application and requirements of the galvanized steel strip.
- Q:What is the length tolerance of steel strips?
- The length tolerance of steel strips can vary depending on the specific type and grade, but generally it is around ± 0.2% to ± 0.5% of the specified length.
- Q:What are the common edge defects in steel strips?
- During the manufacturing process of steel strips, several edge defects may arise that can have negative implications for the quality and performance of the strips. One prevalent defect is referred to as edge wave, which manifests as a wavy or rippled appearance along the edges of the strip. This defect typically arises from uneven tension or rolling during manufacturing. Edge wave can cause complications during subsequent processing or when the strip is being formed into its final product. Another common defect is known as edge cracks, small cracks that may appear along the edges of the strip. These cracks can be a result of excessive stress or strain during manufacturing or improper cooling or heat treatment. Edge cracks have the potential to weaken the strip and compromise its structural integrity. Edge burrs are also a frequent defect in steel strips. They involve unwanted projections or rough edges that develop along the strip's edges. Misalignment of rolling equipment or inadequate lubrication during the rolling process can cause these burrs. Edge burrs can interfere with subsequent processing steps, damage machinery, or pose safety hazards. Similarly, slitting burrs occur specifically during the slitting process. They are small projections or rough edges that form along the strip's edges when it is being slit into narrower widths. Dull slitting blades or improper adjustment of the slitting equipment can cause slitting burrs. It is crucial to remove these burrs before utilizing the steel strip in further manufacturing processes. Lastly, edge rust is a common defect that arises in steel strips. It refers to the formation of rust along the strip's edges, often due to exposure to moisture or improper storage conditions. Edge rust can diminish the corrosion resistance of the strip and impact its overall quality. In conclusion, edge defects such as edge wave, edge cracks, edge burrs, slitting burrs, and edge rust are prevalent in steel strips. These defects can affect the performance, structural integrity, and overall quality of the strips. Therefore, it is imperative for manufacturers to identify and address these issues during the production process.
- Q:How are steel strips used in the construction industry?
- Steel strips are commonly used in the construction industry for various purposes such as reinforcing concrete structures, forming connections between different components, and providing support and stability to various building elements.
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High grade hot- rolled strip
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
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