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: Can steel strips be heat treated?
- Yes, steel strips can be heat treated. Heat treatment is a process that involves heating the steel strips to a specific temperature and then cooling them in a controlled manner. This process can be used to alter the properties of the steel, such as hardness, strength, and ductility, to meet specific requirements for various applications.
- Q: How are steel strips used in the aerospace industry?
- Steel strips are used in the aerospace industry for various purposes, including manufacturing aircraft components, such as structural parts, fasteners, and fittings. These strips are often used for their high strength and durability, providing stability and structural integrity to the aircraft. Additionally, they can be used in the fabrication of landing gear, engine mounts, and other critical components that require high strength and resistance to extreme conditions. Overall, steel strips play a crucial role in maintaining the safety and reliability of aircraft in the aerospace industry.
- Q: Can steel strips be used for packaging purposes?
- Certainly, packaging purposes can be accomplished with steel strips. Due to their flexibility and strength, steel strips prove to be an ideal option for securing and bundling a wide range of products and materials. Industries like manufacturing, construction, and transportation frequently utilize steel strips for packaging heavy and bulky items. By offering exceptional durability and resistance against external forces, steel strips guarantee the security and protection of packaged items during handling, storage, and transportation. Furthermore, steel strips can be effortlessly tailored to suit diverse packaging demands, thereby making them a versatile selection for various packaging needs.
- Q: What are the common surface treatments for steel strips?
- Steel strips can undergo various surface treatments to enhance their appearance, protect against corrosion, or improve performance. These treatments include the following: 1. Hot-dip galvanizing: By immersing the steel strip in molten zinc, a protective coating forms on the surface, providing excellent corrosion resistance and extending the strip's lifespan. 2. Electro-galvanizing: This method involves applying a layer of zinc to the steel strip through an electrolytic process, offering good corrosion resistance and commonly used for thinner strips. 3. Electroplating: Coating the steel strip with a thin layer of a different metal, such as chrome or nickel, through an electrochemical process improves aesthetics and provides additional corrosion resistance. 4. Phosphating: Treating the steel strip with a phosphoric acid solution converts the surface into a layer of phosphate crystals. This improves adhesion of subsequent coatings and provides corrosion resistance. 5. Painting or powder coating: Applying paint or powder coating onto the steel strip enhances appearance, provides corrosion resistance, and improves durability. Coatings can be customized with various colors and finishes. 6. Passivation: Treating the steel strip with an acid solution removes impurities and creates a passive oxide layer on the surface. Passivation improves corrosion resistance and is commonly used for stainless steel strips. 7. Pickling: Immersing the steel strip in an acid solution removes surface impurities like rust or scale, improving surface finish and preparing it for subsequent treatments or coatings. These surface treatments for steel strips are chosen based on desired corrosion resistance, appearance, and specific application requirements. Different industries and applications may require specific treatments to ensure optimal performance in their intended use.
- Q: How are steel strips hardened and tempered?
- Steel strips are hardened and tempered through a process known as heat treatment. The strips are heated to a specific temperature and then cooled rapidly to achieve hardness. Afterward, they are reheated to a slightly lower temperature and cooled slowly to increase their toughness and reduce brittleness. This process of heat treatment allows steel strips to acquire the desired mechanical properties for various applications.
- Q: Can steel strips be used in the production of HVAC systems?
- Yes, steel strips can be used in the production of HVAC systems. Steel strips are often used for manufacturing HVAC components such as ductwork, heat exchangers, and support structures. Steel offers strength, durability, and resistance to corrosion, making it a suitable material for HVAC system applications.
- Q: How are steel strips stored to prevent damage and corrosion?
- In order to minimize the possibility of damage and corrosion, steel strips are typically stored in a manner that prioritizes their safety. A commonly employed technique involves storing them in a clean and dry setting, like a warehouse or storage facility, which shields them from moisture and the elements. Depending on their size and weight, the strips are usually arranged either vertically or horizontally to prevent warping or bending. Furthermore, they are often positioned on pallets or racks to elevate them from the ground, thus diminishing the risk of harm from contact with other objects. To provide an additional layer of protection against corrosion, the steel strips are sometimes coated with substances like oil or rust inhibitors before being stored. This coating acts as a barrier, shielding the steel from any moisture or corrosive substances present in the air. Regular inspections and maintenance procedures are also conducted to guarantee the cleanliness and absence of potential sources of damage or corrosion in the storage environment.
- Q: What are the environmental considerations for steel strips?
- Steel strips have various environmental considerations associated with them. Firstly, the extraction and processing of iron ore, which is necessary for steel strip production, can cause significant environmental impacts. The mining process can lead to the destruction of habitats, erosion of soil, and pollution of water, all of which affect local ecosystems. Moreover, the manufacturing of steel strips involves energy-intensive procedures like smelting and refining, which contribute to the emission of greenhouse gases. These emissions, particularly carbon dioxide, are responsible for climate change and global warming. Furthermore, the production of steel strips often involves the utilization of chemicals like acids and solvents. If not managed properly, these chemicals can pose threats to both human health and the environment. They can seep into soil and water sources, resulting in pollution and endangering wildlife and human populations. Another environmental consideration is the disposal of steel strips at the end of their life cycle. Improper management can lead to their accumulation in landfills, occupying valuable space and potentially contaminating the surrounding environment. Conversely, recycling steel strips can significantly reduce the environmental impact by conserving natural resources and minimizing energy consumption and emissions related to the production of new steel. To address these environmental concerns, it is crucial to adopt sustainable practices in the production and utilization of steel strips. This may involve the implementation of cleaner production technologies, the optimization of energy efficiency, and the reduction of greenhouse gas emissions. Additionally, there should be proper waste management systems and recycling programs in place to minimize the environmental impact of steel strip disposal.
- Q: How are steel strips coated with a passivation layer?
- Steel strips are coated with a passivation layer through a process called passivation. This involves treating the steel surface with a chemical solution, typically an acid or acid-based compound, which removes any impurities, oxides, or potential contaminants from the surface. The passivation layer is then formed naturally on the steel's surface, creating a protective barrier against corrosion and improving its overall durability.
- Q: What are the forming processes used for steel strips?
- There are several forming processes that are commonly used for steel strips. These processes include hot rolling, cold rolling, and annealing. Hot rolling is a process in which the steel is heated to a high temperature and then passed through a series of rollers to reduce its thickness and shape it into a strip. This process is typically used for producing large quantities of steel strips with a consistent thickness and shape. Cold rolling, on the other hand, is a process in which the steel is passed through a series of rollers at room temperature to reduce its thickness and improve its surface finish. Cold rolling is often used to produce steel strips with a high degree of precision and a smooth surface. Annealing is a heat treatment process that is used to soften the steel and improve its ductility. This process involves heating the steel to a specific temperature and then slowly cooling it, which helps to relieve internal stresses and improve the material's mechanical properties. Annealing is often used after the rolling processes to ensure that the steel strips have the desired properties. In addition to these forming processes, there are also other secondary processes that may be used to further shape and finish the steel strips. These processes can include cutting, slitting, and coating, among others, depending on the specific requirements of the application. Overall, the forming processes used for steel strips aim to produce high-quality, accurately shaped strips that meet the desired specifications for a wide range of applications in various industries.
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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:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
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