Hot Dip Galvanized Steel Strip

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Product Description:

Galvanized steel strips 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.

Hotdip galvanized steel strips 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.

Technical specification :

• Steel grade: DX51D+Z• Zinc coverage:30-180 g/sqm on both sides (depending by the requested specification);• Thickness: between 0,2 mm and 1,00 mm;• Width:600mm,914mm,1000mm, 1220mm and 1250 mm;• Coil weight: 4-6 mt;• Coil ID: 508 mm;• Coil OD: 900-1500 mm ;

Depending on their usage, the hot-dip galvanized coil can be delivered slightly oiled.

Q: What are the different surface embossing methods for steel strips?: There are several different surface embossing methods for steel strips, including roll embossing, pattern transfer, laser engraving, and heat embossing.

Q: How are steel strips processed for impact resistance?: Steel strips can be processed for impact resistance through a variety of methods. One common approach is heat treatment, where the steel strips are heated to a specific temperature and then rapidly cooled to change their microstructure. This process, known as quenching and tempering, helps to increase the strength and toughness of the steel, making it more resistant to impact. Another method is through the addition of alloying elements during the manufacturing process. By incorporating elements such as manganese, nickel, or chromium, the steel strips can be made more resilient and better able to withstand impact forces. These alloying elements can enhance the steel's ability to form a protective layer, absorb energy, and resist deformation, thus improving its impact resistance. Furthermore, cold working can also enhance the impact resistance of steel strips. This process involves deforming the steel at room temperature through methods like rolling, bending, or drawing. Cold working introduces strain into the steel's structure, which increases its strength and toughness, ultimately making it more resistant to impact. Coating the steel strips is another approach to enhance their impact resistance. Applying protective coatings like paint, polymer, or zinc can create a barrier that absorbs and dissipates impact energy, reducing the likelihood of damage or deformation. Coatings can also provide corrosion resistance, which helps to maintain the integrity of the steel strips over time. Overall, a combination of heat treatment, alloying, cold working, and coating can be employed to process steel strips for improved impact resistance. The specific methods used will depend on the desired properties and the intended application of the steel strips.

Q: What is the thickness range of steel strips?: The thickness range of steel strips can vary depending on the specific application and manufacturing process, but it typically ranges from 0.1mm to 25mm.

Q: Are steel strips resistant to corrosion?: Yes, steel strips are resistant to corrosion due to their composition and protective coatings.

Q: How are steel strips used in the production of kitchenware?: Steel strips are used in the production of kitchenware to create the main structure or body of various utensils and appliances such as pots, pans, and cutlery. The steel strips are typically cut, shaped, and welded to form the desired shape and size of the kitchenware. These strips provide strength, durability, and a smooth surface finish, making them ideal for use in the kitchen.

Q: What are the standards and certifications applicable to steel strips?: There are several standards and certifications that are applicable to steel strips, ensuring their quality, safety, and compliance with industry regulations. Some of the key standards and certifications include: 1. ASTM International Standards: ASTM A109, ASTM A240, ASTM A568, and ASTM A1018 are widely recognized standards for steel strips. These standards specify the requirements for various steel grades, dimensions, tolerances, mechanical properties, and chemical compositions. 2. ISO Standards: ISO 9001 is a globally recognized quality management system (QMS) certification that ensures consistent product quality, customer satisfaction, and continuous improvement. ISO 14001 is an environmental management system (EMS) certification that focuses on minimizing the environmental impact of the production processes. 3. EN Standards: European standards such as EN 10130, EN 10139, EN 10268, and EN 10152 define the technical specifications for cold-rolled and hot-rolled steel strips. These standards cover aspects like surface finish, dimensional tolerances, mechanical properties, and chemical compositions. 4. JIS Standards: Japanese Industrial Standards (JIS) like JIS G3131, JIS G3141, JIS G3311, and JIS G4801 are widely used in the steel industry. These standards provide specifications for steel strips used in various applications, including automotive, construction, and electrical industries. 5. SAE Standards: The Society of Automotive Engineers (SAE) has established various standards for steel strips used in automotive applications. These standards ensure the suitability of the steel strips for specific automotive components, considering factors like strength, ductility, and formability. 6. PED Certification: The Pressure Equipment Directive (PED) certification is necessary for steel strips used in pressure vessels and related equipment. This certification ensures compliance with safety requirements and quality standards for pressure equipment used in various industries. 7. RoHS Compliance: Restriction of Hazardous Substances (RoHS) is a certification that restricts the use of certain hazardous substances in electrical and electronic equipment, including steel strips used in such applications. This certification ensures the safety of the end-users and compliance with environmental regulations. It is important for manufacturers, suppliers, and consumers to ensure that steel strips they use or purchase adhere to these standards and certifications. These standards and certifications guarantee the quality, reliability, and safety of steel strips for various applications.

Q: How are steel strips used in the production of automotive parts?: Due to their strength, durability, and versatility, steel strips are commonly utilized in the manufacturing of automotive parts. These strips are typically crafted from high-quality steel alloys that are specifically engineered to meet the rigorous demands of the automotive industry. One of the main applications of steel strips in the production of automotive parts lies in the fabrication of body panels. These panels, including doors, hoods, fenders, and roofs, require materials that can endure impacts, resist corrosion, and provide structural integrity. Steel strips are an ideal choice for these components since they offer an excellent strength-to-weight ratio, ensuring the safety and performance of the vehicle. In addition, steel strips are also employed in the production of structural components like chassis frames and suspension systems. These parts must be able to withstand heavy loads, endure harsh road conditions, and provide stability. Steel strips provide the necessary strength and rigidity to these components, guaranteeing the overall structural integrity of the vehicle. Moreover, steel strips find use in the production of smaller automotive parts. These include brackets, reinforcements, supports, connectors, and various other components that require high strength and dimensional accuracy. Steel strips can be easily cut, formed, and welded to create intricate shapes and designs, making them a preferred material in the automotive industry. Furthermore, steel strips are often utilized in the manufacturing of safety-related automotive parts such as seatbelt buckles, door latches, and airbag components. These parts necessitate materials that can endure extreme forces and deliver reliable performance in critical situations. Steel strips offer the necessary strength, toughness, and resistance to deformation, ensuring the safety of passengers in the event of accidents. Overall, steel strips play a crucial role in the production of automotive parts by providing strength, durability, and versatility. Their usage in body panels, structural components, smaller parts, and safety-related components contributes to the overall performance, safety, and longevity of vehicles.

Q: Can steel strips be used in packaging applications?: Yes, steel strips can be used in packaging applications. They are commonly used to secure and bundle items such as lumber, metal sheets, or heavy machinery for transportation and storage. Steel strips provide strength, durability, and resistance to damage, making them suitable for various packaging needs.

Q: How are steel strips used in the production of metal fencing?: The production of metal fencing relies heavily on steel strips, which serve as a vital component. Throughout the manufacturing process, these strips are utilized in various ways to construct sturdy and long-lasting fencing structures. A primary application of steel strips in metal fencing production is their use in forming the fence's framework or skeleton. These strips are often bent or welded together to create desired shapes, such as posts, rails, or panels. The strong and rigid nature of steel makes it an ideal material for providing structural integrity to the fence, ensuring its ability to withstand external forces and maintain its shape over time. Steel strips also play a crucial role in fabricating fencing components, including brackets, hinges, and fasteners. These strips are precisely cut and shaped to function as connectors, securely joining different parts of the fence together. The durability of steel guarantees that these components can endure the pressure and stress exerted on them during installation and throughout the fence's lifespan. Furthermore, steel strips are frequently employed for reinforcement purposes in metal fencing production. They can be strategically incorporated into the fence design to enhance its strength and resistance against bending or warping. This reinforcement ensures the overall stability of the fence, which is particularly important in high-security or heavy-duty fencing applications. Additionally, steel strips contribute significantly to the longevity of metal fencing. They are often coated or treated with protective materials, such as galvanization or powder coating, to prevent corrosion and rust formation. This protective layer not only enhances the fence's appearance but also extends its lifespan by shielding the steel strips from environmental elements and harsh weather conditions. In conclusion, steel strips are essential in metal fencing production for constructing the framework, fabricating components, reinforcing the structure, and ensuring longevity. Their strength, durability, and versatility make them an indispensable component in the manufacturing process, enhancing the overall quality and performance of metal fences.

Q: What are the common hardness levels for steel strips?: The hardness levels of steel strips can differ depending on the grade and type of steel utilized. However, some frequently encountered hardness levels for steel strips are as follows: 1. Soft or Annealed: This designation applies to steel strips that have undergone annealing, a process involving heating the steel to a specific temperature and gradually cooling it. Annealed steel strips possess a lower hardness level, which makes them more pliable and easier to shape. 2. Half-hard: Steel strips that have undergone cold-rolling and subsequent annealing fall under the half-hard category. They possess a moderate hardness level, striking a balance between strength and formability. Half-hard steel strips are commonly utilized in applications that require a certain degree of resilience. 3. Full-hard: Steel strips that have undergone cold-rolling without subsequent annealing are classified as full-hard. They possess a higher hardness level, rendering them more rigid and less pliable. Full-hard steel strips are frequently employed in applications that demand high strength and resistance to deformation, such as springs or fasteners. 4. Tempered: Steel strips that have been heat-treated and rapidly cooled are referred to as tempered. This process enhances the hardness and strength of the steel, making it suitable for applications that necessitate increased durability and resistance to wear. It is important to mention that the hardness level of steel strips can be measured using various scales, such as the Rockwell or Brinell hardness scales. The specific hardness level required for a particular application depends on factors such as the intended use, environmental conditions, and desired mechanical properties. Seeking advice from a metallurgical expert or referring to industry standards can aid in determining the appropriate hardness level for steel strips in a given context.

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