Hot rolled strip

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Hot rolled strip

1, hot rolled ordinary carbon structural steel (GB3524-83)

Hot rolled plain carbon steel with ordinary carbon structural steel as material,made of 1.80-6.00mm hot rolled strip thickness, width of 50-1200mm.

1) the main purposes

(2) grade and chemical composition of materials

Standards and grades

National standard

Quite foreign standard

Function and use

Material categories

The implementation of standards

Grade

Standard No.

Grade

Suitable for manufacturing of cold forming parts

Low carbon steel coil

Q/BQB302

SPHC

JISG3131

SPHC

SPHD

SPHE

SAE1006/SAE1008

XG180IF/200IF

Steel for general structure

GB/T912-1989

Q195

JISG3101

SS330

For general construction of buildings, bridges, ships, vehicles, etc.

Q235B

SS400

SS490

ASTMA36

SS540

Mainly used for cold rolling blank, cold-formed steel billet, welded steel pipebillet and bicycle, hardware products manufacturing.

Q:What are the chemical analysis techniques for steel strips?: Some of the common chemical analysis techniques for steel strips include spectrometry, X-ray fluorescence (XRF), optical emission spectroscopy (OES), and combustion analysis. These techniques are used to determine the elemental composition and impurity levels in the steel strips, providing valuable information for quality control and material characterization.

Q:Can steel strips be used in the production of signage?: Yes, steel strips can be used in the production of signage. They provide durability, strength, and a professional appearance, making them a popular choice for outdoor and industrial signage applications.

Q:How are steel strips used in the production of heat exchangers?: Due to their excellent thermal conductivity, strength, and durability, steel strips find widespread use in the manufacture of heat exchangers. These devices serve the purpose of transferring heat between two or more fluids, and steel strips play a vital role in their construction. To begin with, steel strips commonly serve as the primary material for the core of heat exchangers. The core consists of a series of parallel tubes or plates that facilitate the flow of fluids through separate channels. These steel strips are shaped into specific forms, such as tubes or fins, in order to maximize the available surface area for heat transfer. The strips are then joined together to create a robust and efficient core structure. Furthermore, steel strips are employed in the fabrication of headers and connectors in heat exchangers. Headers act as the main entry and exit points for the fluids, while connectors enable the connection of different parts of the heat exchanger. Steel strips are favored for these components due to their exceptional strength, resistance to corrosion, and ability to withstand high temperatures. Additionally, steel strips are often utilized in the construction of the casing or enclosure of the heat exchanger. The casing not only safeguards the internal components but also facilitates the direction of fluid flow and promotes effective heat transfer. Steel strips are well-suited for this purpose as they can be easily shaped and welded to create a sturdy and leak-proof enclosure. In conclusion, steel strips are indispensable in the production of heat exchangers as they are employed in the creation of the core, headers, connectors, and casing. Their thermal conductivity, strength, and durability make them an ideal choice for these applications, ensuring efficient heat transfer and long-lasting performance of the heat exchangers.

Q:How are steel strips welded?: Steel strips can be welded using a variety of welding techniques, depending on the specific application and desired outcome. One common method is known as arc welding, which involves the use of an electric current to create an arc between the steel strips and a welding electrode. This generates intense heat, melting the edges of the strips, and allowing them to fuse together. Another method is known as resistance welding, which involves passing an electrical current through the steel strips, creating heat at the point of contact. The strips are then pressed together, creating a strong bond as the heat melts the edges and fuses them together. Laser welding is another technique used to weld steel strips. In this method, a high-powered laser beam is used to melt and fuse the edges of the strips together. Laser welding offers high precision and can be used for a wide range of steel strip thicknesses. Additionally, there are other welding methods such as gas welding, friction welding, and ultrasonic welding that can also be used depending on the specific requirements and constraints of the project. Regardless of the welding technique used, it is important to ensure proper preparation of the steel strips, including cleaning and removal of any contaminants, to achieve a strong and durable weld. Welding parameters such as heat input, travel speed, and electrode selection should also be carefully controlled to ensure a quality weld with minimal distortion and maximum strength.

Q:What are the standards for manufacturing steel strips?: The standards for manufacturing steel strips typically include specifications for dimensions, composition, mechanical properties, surface finish, and tolerances. These standards are established by organizations such as the American Society for Testing and Materials (ASTM) or the International Organization for Standardization (ISO). They ensure consistent and reliable quality in steel strip production, allowing for compatibility in various applications and industries.

Q:How are steel strips used in the mining industry?: Steel strips are commonly used in the mining industry for various applications such as reinforcing underground tunnels, providing structural support for mining equipment, and manufacturing conveyor belts for transporting extracted materials.

Q:What are the main factors affecting the surface cleanliness of steel strips?: The main factors affecting the surface cleanliness of steel strips are the manufacturing process, environmental conditions, and the presence of contaminants.

Q:Are steel strips suitable for the manufacturing of pharmaceutical equipment?: Yes, steel strips are suitable for the manufacturing of pharmaceutical equipment. Steel is a durable and strong material that provides the necessary strength and stability required for pharmaceutical equipment. It is also resistant to corrosion and can withstand harsh conditions, making it an ideal choice for ensuring the safety and longevity of pharmaceutical equipment. Additionally, steel strips can be easily shaped and molded into various forms, allowing for customization and versatility in the manufacturing process.

Q:Can steel strips be used in the renewable energy sector?: The renewable energy sector can indeed make use of steel strips. These strips possess great versatility and can be applied in various ways within this sector. To illustrate, they find utility in constructing wind turbines, mounting solar panels, and other infrastructure projects connected to generating renewable energy. In the case of wind turbines, steel strips serve as raw materials for manufacturing turbine towers. These towers must be robust and long-lasting to endure the wind's force. Steel strips offer the required strength and stability, rendering them a perfect selection. Moreover, steel strips frequently feature in the creation of solar panel mounting systems. These systems are responsible for securing solar panels in position, guaranteeing optimal sunlight exposure. Given their strength, resistance to corrosion, and economical nature, steel strips are often employed as a structural element. Additionally, steel strips can also be employed in constructing other renewable energy infrastructure, such as hydroelectric and geothermal power plants. These plants necessitate sturdy structures and components, and steel strips can meet the demand for strength and durability. To sum up, steel strips possess a broad range of applications in the renewable energy sector. Their strength, versatility, and cost-effectiveness make them an apt choice for diverse renewable energy projects. Consequently, they contribute to the advancement and expansion of sustainable energy sources.

Q:How are steel strips waterjet cut?: Using a highly pressurized stream of water mixed with abrasive particles, steel strips undergo waterjet cutting. This involves directing the waterjet onto the steel strip, which is held in place by a cutting bed or fixture. The high-pressure pump generates the waterjet, typically with a range of 30,000 to 90,000 psi. To create a narrow and high-velocity stream, the waterjet is focused through a small orifice, usually around 0.010 to 0.060 inches in diameter. To cut the steel strip, a computer-controlled system moves the waterjet along the desired cutting path. As the high-pressure waterjet stream makes contact, it erodes the steel material and effectively slices through the strip. The addition of abrasive particles, such as garnet, helps accelerate the erosion of the steel and enhances the cutting process. Waterjet cutting offers numerous advantages for cutting steel strips. It provides a precise and clean cut with minimal heat-affected zones, which prevents distortion or warping of the steel. Moreover, the process can cut through various thicknesses of steel strips, ranging from thin gauges to thick plates. Additionally, waterjet cutting is a versatile method that can handle complex shapes and intricate designs, making it suitable for a wide range of applications in industries such as automotive, aerospace, and manufacturing. In conclusion, waterjet cutting of steel strips is an efficient and accurate process that utilizes the power of water and abrasive particles to achieve precise and high-quality cuts.

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