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 is the corrosion resistance of steel strips?: The corrosion resistance of steel strips can vary depending on the specific type of steel used and the environmental conditions they are exposed to. Generally, steel strips are known for their good resistance to corrosion due to the presence of iron, which naturally reacts with oxygen to form a protective layer of iron oxide or rust. However, this protective layer can be compromised in certain corrosive environments, such as those high in moisture, salt, or acidic substances. To improve corrosion resistance, steel strips can be coated with materials like zinc, aluminum, or other alloys that provide an additional barrier against corrosion. Additionally, proper maintenance and regular inspections are crucial to prevent and address any signs of corrosion in steel strips.

Q:How do steel strips contribute to magnetic properties in various applications?: Steel strips contribute to magnetic properties in various applications due to their composition and processing. Steel is an alloy primarily made of iron with a small percentage of carbon and other elements. The presence of iron is crucial for its magnetic properties. Iron is a ferromagnetic material, meaning it can be magnetized and retains its magnetism. The carbon content in steel determines its hardness and magnetic characteristics. Higher carbon content leads to increased hardness but decreases magnetic properties. Therefore, steel strips used for magnetic applications are typically low carbon or have controlled carbon content. The processing of steel strips also plays a significant role in their magnetic properties. Annealing, for example, involves heating the steel strips and then slowly cooling them to relieve stress and refine the grain structure. This process enhances their magnetic properties by aligning the iron atoms in a consistent manner. Steel strips are widely used in the production of electromagnetic cores, transformers, and inductors. In these applications, the steel strip acts as a magnetic core that concentrates and directs the magnetic field. The magnetic properties of steel strips allow for efficient energy transfer and reduce energy losses in electromagnetic devices. Furthermore, steel strips are used in magnetic shielding applications. The high magnetic permeability of steel allows it to redirect or absorb magnetic fields, protecting sensitive electronic components from electromagnetic interference. In summary, the magnetic properties of steel strips are essential for various applications. The composition and processing of steel determine its magnetic characteristics, making it a versatile material for electromagnetic cores, transformers, inductors, and magnetic shielding.

Q:How are steel strips waterjet cut?: Steel strips are waterjet cut using a high-pressure stream of water mixed with an abrasive material. The waterjet machine precisely directs the stream onto the steel strip, eroding the material and creating a clean and accurate cut.

Q:How are steel strips used in the manufacturing of elevator systems?: Steel strips are used in the manufacturing of elevator systems to provide structural support and strength. They are commonly used for the construction of elevator car frames, guide rails, and brackets. The steel strips help ensure the stability and durability of the elevator system, allowing for safe and efficient transportation of passengers or goods.

Q:What are the properties of high-strength steel strips?: High-strength steel strips possess several properties that make them desirable for various applications. Firstly, they have a high tensile strength, which means they can withstand significant amounts of tension or stretching without breaking or deforming. This property makes them suitable for use in structural components and load-bearing applications where strength is critical. Additionally, high-strength steel strips exhibit excellent hardness, which allows them to resist wear and abrasion. This makes them ideal for use in industries such as automotive and machinery, where components may encounter friction or contact with other surfaces. Furthermore, these steel strips often have good formability, meaning they can be easily shaped or bent into complex forms without losing their structural integrity. This property is crucial for manufacturing processes such as stamping, forming, and roll forming, where the steel needs to be manipulated into specific shapes. Another important property of high-strength steel strips is their resistance to corrosion. They are often coated or treated with protective layers, such as galvanization or other corrosion-resistant coatings, to prevent rusting and maintain their durability even in harsh environments. Moreover, high-strength steel strips have high yield strength, which refers to their ability to withstand significant amounts of stress before permanent deformation occurs. This property makes them suitable for applications where structural stability is essential, such as in construction and infrastructure projects. Overall, the properties of high-strength steel strips make them a reliable and versatile material for a wide range of applications, providing strength, hardness, formability, corrosion resistance, and yield strength.

Q:What are the main factors affecting the hardness of steel strips?: The main factors affecting the hardness of steel strips are the carbon content, the heat treatment process, and the presence of alloying elements. Higher carbon content generally results in harder steel, while the heat treatment process, such as quenching and tempering, can also significantly affect hardness. Additionally, the presence of alloying elements like chromium, molybdenum, and vanadium can contribute to the overall hardness of the steel strips.

Q:How are steel strips processed for interlocking?: To achieve interlocking, steel strips undergo a series of steps involving precision cutting, shaping, and assembly. It all begins with selecting high-quality steel strips that meet the necessary specifications. These chosen strips are then cut into specific lengths and widths using advanced cutting techniques like shearing or laser cutting. After the initial cutting, further processing may be done to create interlocking features. This can involve shaping the edges of the strips to form interlocking profiles or adding specialized notches or grooves that allow for secure connections. Machining techniques like milling or grinding might be employed to achieve the desired interlocking design. Once the interlocking features are formed, the steel strips undergo careful inspection to ensure accuracy and quality. Any imperfections or burrs are removed through deburring or polishing processes to guarantee smooth and precise interlocking. The final step in processing steel strips for interlocking is assembly. The interlocking profiles of the strips are meticulously aligned and joined together using welding, riveting, or other suitable methods. This assembly process ensures that the interlocking steel strips create a strong and secure connection capable of meeting the requirements of the intended application. In summary, the process of processing steel strips for interlocking involves a combination of cutting, shaping, and assembly techniques to create precise interlocking profiles. This guarantees that the resulting interlocking system offers a reliable and durable solution for various applications such as construction, manufacturing, or infrastructure projects.

Q:How are steel strips used in the manufacturing of machinery?: Steel strips are commonly used in the manufacturing of machinery as they provide strength, durability, and versatility. They are used for various purposes such as forming the framework, constructing gears, reinforcing parts, and creating structural components. These strips can be easily shaped and welded to meet specific design requirements, making them essential in the production of reliable and efficient machinery.

Q:How are steel strips formed into different shapes?: Different shapes can be achieved with steel strips through a process known as steel strip forming. This process encompasses multiple steps to manipulate the steel strips into the desired shapes. To begin, the steel strips are uncoiled from a large steel coil and introduced into a forming machine. In this machine, a series of rollers, dies, and press brakes are utilized to shape the steel strips. The strips are gradually bent and curved into the desired shape through the application of pressure from the rollers. Further shaping of the steel strips is achieved with the use of dies and press brakes, which apply precise amounts of force at specific points. This enables the creation of more intricate shapes and angles. In certain cases, heat may be employed during the forming process to increase the malleability of the steel strips, making them easier to shape. This is especially common when intricate or tight shapes are being formed. Once the desired shape has been attained, the steel strips are cooled and then cut to the necessary length. Subsequently, they are prepared for subsequent processing or for utilization in various industries such as automotive, construction, or manufacturing. In summary, the process of forming steel strips into different shapes involves a combination of mechanical force, heat, and precision engineering techniques to produce the desired final product.

Q:How are steel strips processed for precision cutting?: Steel strips are processed for precision cutting through a series of steps that involve cleaning, levelling, slitting, and edge trimming. These processes ensure that the steel strips are free from impurities, have consistent thickness, and have well-defined edges, resulting in accurate and precise cuts.

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