Hot Dipped Galvanized Steel Coil/Hot Dipped Galvanized Steel Strips Coil/Zinc Coated Steel Coil
- Ref Price:
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 500 m.t.
- Supply Capability:
- 100000 m.t./month
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Hot Dipped Galvanized Steel Coil/Hot Dipped Galvanized Steel Strips Coil/Zinc Coated Steel Coil Specifications:
Steel strips coils galvanized
Material: Q195, Q215, Q235, Q345B, SGCC, DX51D+Z
Thickness:0.75-4.5mm
Width:32-750mm
Zinc coating: 60-550g/m2
Hot Dipped Galvanized Steel Coil/Hot Dipped Galvanized Steel Strips Coil/Zinc Coated Steel Coil Description:
Galvanized steel coil are widely used in the construction industry, as raw material for the production of corrugated panels, fencing products, drywall panel profiles, ventilation systems etc. Recommended for both outside and inside usage, galvanized steel has a high resistance to corrosion in different environments, due to a protective layer of zinc of 100 – 180 grams per square metre.
Main Features of Hot Dipped Galvanized Steel Coil/Hot Dipped Galvanized Steel Strips Coil/Zinc Coated Steel Coil:
Hot-dip galvanized steel coils are produced by immersing steel in a zinc bath. An appropriate galvanizing process requires a pretreatment process during which the steel passes through different baths which prepare the surface for zinc coating. In this stage, chemicals are used to clean the surface of the steel. After the chemical treatment, the steel coils pass through a bath of melted zinc at temperatures around 460 ° C. The resulting uniform coating is finished through a process of skin-passing to provide smooth and shiny appearance of the finished product. To store for a longer period, the hot-dip galvanized coils can be delivered with a final oil coating, according to the customer’s demand.
Hot Dipped Galvanized Steel Coil/Hot Dipped Galvanized Steel Strips Coil/Zinc Coated Steel Coil Images:
FAQ:
What certificates do you have for your products?
ISO
- Q:How are steel strips processed for powder coating?
- To achieve a high-quality and long-lasting finish, steel strips undergo a series of steps for powder coating. Initially, the strips are meticulously cleaned to eliminate any dirt, grease, or contaminants on the surface. This is commonly accomplished by employing a chemical cleaning solution or a mixture of water and detergent. Once the steel strips are clean, they are typically treated with a pre-treatment solution to improve adhesion and resistance against corrosion. The specific pre-treatment solution used may vary depending on the requirements of the powder coating process, but it often involves applying a conversion coating like phosphating or chromate conversion. Following the pre-treatment process, the steel strips are dried to eliminate any remaining moisture or chemicals. This is typically achieved by subjecting the strips to controlled temperatures in ovens or heating chambers for a specific period. Once the strips are dry, they are ready for powder coating. Powder coating involves applying a fine powder, typically composed of thermosetting polymers, onto the surface of the strips. This is usually done by employing an electrostatic spray gun that charges the powder particles, causing them to adhere to the grounded steel surface. After the powder is applied, the steel strips are transferred to a curing oven where the powder is melted and fused onto the surface. The curing process generally entails subjecting the strips to high temperatures for a specific duration, allowing the powder to flow and form a smooth and durable coating. Once the curing process is complete, the steel strips are cooled and inspected to ensure quality. This involves examining for any imperfections such as uneven coating or defects and making necessary adjustments or touch-ups if required. In summary, the process of preparing steel strips for powder coating involves thorough cleaning, pre-treatment, drying, powder application, curing, and final inspection. This comprehensive process guarantees that the steel strips are well-prepared and coated to provide exceptional protection, aesthetics, and longevity.
- Q:How are steel strips protected against rust?
- Steel strips are protected against rust through various methods such as applying a protective coating, galvanization, or using corrosion-resistant alloys.
- Q:Can steel strips be used in marine or offshore applications?
- Yes, steel strips can be used in marine or offshore applications. Steel is a versatile and durable material that can withstand harsh environmental conditions, including exposure to saltwater and high humidity. Steel strips can be used in various marine and offshore applications such as shipbuilding, offshore platforms, pipelines, and underwater structures. Steel strips used in marine or offshore applications are typically made from corrosion-resistant alloys or are coated with protective coatings to prevent rust and corrosion. These coatings can include galvanization, epoxy coatings, or specialized marine-grade paint systems. These protective measures ensure that the steel strips can withstand the corrosive effects of saltwater and prolong their lifespan in marine environments. Steel strips are commonly used in marine and offshore applications due to their high strength-to-weight ratio, which is crucial in the construction of lightweight yet robust structures. Additionally, steel is easily workable and can be fabricated into various shapes and sizes, making it suitable for a wide range of marine and offshore applications. Overall, steel strips are a reliable and cost-effective choice for marine and offshore applications, providing durability, corrosion resistance, and structural integrity in challenging environments.
- Q:Can steel strips be used for making musical instruments?
- Yes, steel strips can be used for making musical instruments. They are commonly used in instruments such as steel drums, steel guitars, and some percussion instruments. The steel strips are shaped, tuned, and played in different ways to produce specific musical notes and tones.
- Q:How are steel strips used in the manufacturing of storage tanks?
- Steel strips are commonly used in the manufacturing of storage tanks due to their strength, durability, and flexibility. These strips serve as the primary material for constructing the cylindrical body of the tank. Initially, the steel strips are cut into specific lengths and widths, depending on the desired size and capacity of the storage tank. They are then shaped into a cylindrical form and welded together to create a seamless structure. The welding process ensures the tank is leak-proof and capable of withstanding high pressure. The steel strips used in storage tank manufacturing are typically made from carbon steel, which offers excellent mechanical properties and corrosion resistance. This is crucial to ensure the tank can withstand the harsh conditions it may be exposed to, such as the storage of corrosive substances or extreme temperature variations. Additionally, the flexibility of steel strips allows for the customization of storage tanks, enabling manufacturers to create tanks of various sizes and shapes to meet specific storage requirements. The steel strips are also easy to transport and assemble on-site, making them a preferred choice in the manufacturing industry. Overall, steel strips play a crucial role in the construction of storage tanks by providing strength, durability, and flexibility, ensuring the safe and efficient storage of various substances.
- Q:How do steel strips respond to different surface coating techniques?
- Steel strips respond differently to different surface coating techniques depending on the type of coating applied. Coatings such as galvanization provide enhanced corrosion resistance, while powder coating offers improved durability and aesthetic appeal. Other techniques like electroplating and painting provide specific advantages based on the desired properties, such as increased hardness or enhanced adhesion. The choice of coating technique depends on the intended application and the specific requirements of the steel strips.
- Q:How are steel strips heat treated?
- Annealing or tempering is the process by which steel strips undergo heat treatment, wherein the strips are subjected to controlled cycles of heating and cooling. The main objective of heat treating steel strips is to enhance their mechanical properties, including hardness, toughness, and ductility. During annealing, the steel strips are heated to a specific temperature, typically above their critical temperature, and then gradually cooled. This process alleviates internal stresses, refines the grain structure, and improves the overall machinability of the strips. It also enhances their ductility and toughness, making them more resistant to deformation and cracking. In contrast, tempering involves a similar heating process, but the steel strips are reheated to a lower temperature and then rapidly cooled. This step is performed to reduce the hardness and increase the toughness of the strips. By selecting the appropriate temperature and cooling rate, the desired combination of strength and toughness can be achieved. To ensure consistent and reliable heat treatment results, steel strips are often subjected to heat treatment in controlled atmospheres or furnaces, where the temperature and cooling rate can be precisely controlled. Other factors, such as the steel composition and desired end properties, also influence the specific heat treatment process. Overall, heat treating steel strips is a crucial step in their production process, as it allows for the optimization of their mechanical properties. This makes them suitable for various applications in industries like automotive, construction, and manufacturing.
- Q:How are steel strips tested for oil or grease residues?
- To guarantee the cleanliness and appropriateness of steel strips for further processing, various methods are employed to detect oil or grease residues. The solvent extraction method is a frequently utilized technique, involving the utilization of a nonpolar organic solvent like hexane or acetone to dissolve any oil or grease present on the steel strip's surface. The steel strip is submerged in the solvent and agitated to aid in the dissolution of the residues. Subsequently, the solvent is separated from the strip, and the extracted oil or grease is measured either gravimetrically or through analytical techniques such as gas chromatography. Another commonly employed method is the water break test. This test involves applying a thin film of water onto the steel strip's surface. If any oil or grease residues exist, they hinder the formation of a uniform film, leading to the water breaking into droplets or forming irregular patterns. The presence of these droplets or patterns signifies the existence of oil or grease residues. Furthermore, visual inspection and touch tests can be conducted to identify any visible or tactile indications of oil or grease on the steel strip. Trained inspectors thoroughly examine the strip's surface under appropriate lighting conditions and employ their sense of touch to detect any oily or greasy residues. Overall, a combination of solvent extraction, water break test, visual inspection, and touch tests are frequently employed to ensure that steel strips are devoid of oil or grease residues. These tests play a pivotal role in maintaining the quality and cleanliness of the steel strips, thereby ensuring their suitability for subsequent processing and applications.
- Q:How are steel strips used in the production of metal furniture hardware?
- Steel strips are commonly used in the production of metal furniture hardware to provide structural support and reinforcement. These strips are often bent, cut, or shaped to form various components such as brackets, hinges, and handles. The strength and durability of steel make it an ideal material for ensuring the stability and longevity of metal furniture pieces.
- Q:What is the difference between hot rolling and cold rolling of steel strips?
- The main difference between hot rolling and cold rolling of steel strips lies in the temperature at which the process takes place and the subsequent effects on the material. Hot rolling involves heating the steel strips at extremely high temperatures, typically above the recrystallization temperature of the metal. This softens the steel and makes it more malleable, allowing it to be easily shaped and formed into various products. The heated steel is then passed through a series of rollers to reduce its thickness and achieve the desired dimensions. Hot rolling results in a smoother surface finish and less residual stress in the steel, making it suitable for applications that require a higher strength or ductility. On the other hand, cold rolling is performed at room temperature or slightly below it, without heating the steel strips. This process involves passing the steel through a series of rollers that gradually reduce its thickness. Cold rolling not only refines the grain structure of the steel but also increases its hardness and strength. Additionally, cold rolling improves the surface finish of the steel, making it suitable for applications where a smooth and polished appearance is desired. In summary, hot rolling is carried out at high temperatures to achieve better formability and shape the steel, while cold rolling is performed at room temperature to enhance the mechanical properties and surface finish of the steel. The choice between hot rolling and cold rolling depends on the specific requirements of the end product and the desired characteristics of the steel.
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Hot Dipped Galvanized Steel Coil/Hot Dipped Galvanized Steel Strips Coil/Zinc Coated Steel Coil
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 500 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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