S420GD+ZAM275 Zn-Al-Mg Alloy Steel Strip

• Brand: S420GD+ZAM275
• Specifications:
• Thickness: The general production range is between 0.1-0.5mm, which can be customized according to the actual needs of customers.
• Width: The production width range is usually 100-1600mm, which can be longitudinally cut according to the actual needs of customers to meet the needs of different processing and usage scenarios.

(1) Strong corrosion resistance: Zn-Al-Mg alloy steel coating is mainly zinc, with about 11% aluminum, 3% magnesium and a trace amount of silicon. These added elements produce a composite effect, which greatly improves the corrosion resistance of the alloy strip, and its performance is far better than ordinary galvanized and aluminum-zinc products. Moreover, even with a small amount of coating adhesion, it can still achieve a high degree of corrosion resistance, and can even replace stainless steel or aluminum in some scenarios. In addition, in the salt spray test, the salt spray test report of the product with 275g zinc-aluminum-magnesium coating can reach more than 6,000 hours. The steel mill usually guarantees that it will not rust for 30 years and will not rust to perforation for 35 years.

(2) Cut self-healing property: The strip steel can self-heal at the cut end surface, effectively overcoming the problem that traditional coated plates are prone to rust at the cut, and maintain good corrosion resistance in long-term use.

(3) Good processing performance: It has excellent processing performance, such as stretching, stamping, bending, painting, welding and other processes can be well applied, and can meet the complex processing requirements of multiple industries such as automobiles, home appliances, and construction.

(4) High coating hardness: Its coating hardness is high and has excellent damage resistance. During transportation, processing and use, it can better resist damage caused by external scratches, collisions, etc., and protect the internal steel.

(5) Excellent surface quality: The surface is usually environmentally friendly and passivated without spots, and the board surface is delicate, which can not only improve the appearance effect, but also further enhance its anti-corrosion performance and adhesion to subsequent coatings.

(1) Construction field: Commonly used in building structures and components such as keel ceilings, perforated plates, cable trays, and color steel tiles. With its high strength and corrosion resistance, it can effectively resist erosion by wind, rain, ultraviolet rays, etc., and extend the service life of the building. At the same time, good processing performance also facilitates construction and installation.

(2) Automobile manufacturing: Zn-Al-Mg alloy steel can be used for automobile body structural parts, chassis parts and other parts, which can not only meet the automobile's requirements for material strength, but also improve the corrosion resistance of parts, improve the overall quality and service life of the automobile, and reduce later maintenance.

(3) Home appliance industry: Zn-Al-Mg alloy steel is suitable for the manufacture of housings, brackets, etc. of home appliances such as refrigerators, air conditioners, and washing machines. Its beautiful surface and good corrosion resistance can improve the appearance quality and market competitiveness of home appliance products, and at the same time play a better protective role for internal electronic components.

(4) Power communication: used for power transmission and distribution high and low voltage switch cabinets, box-type substation outer body and other equipment. Under complex outdoor environmental conditions, it can effectively ensure the safe and stable operation of equipment and reduce failures and maintenance work caused by corrosion.

(5) Agricultural livestock: such as agricultural breeding greenhouse steel structures, steel structure accessories, greenhouses, breeding equipment, etc., can maintain good performance in humid agricultural environments with corrosive substances, and provide reliable support for agricultural production.

Similar to the traditional strip continuous hot-dip galvanizing production process, Zn-Al-Mg alloy steel mainly includes uncoiling, welding, degreasing, annealing, hot-dip galvanizing, air knife control of coating thickness and quality, post-plating cooling, water quenching, finishing, straightening, oiling (optional), coiling and other processes.

The production of S420GD+ZAM275 galvanized aluminum-magnesium alloy strip steel is similar to the traditional strip steel continuous hot-dip galvanizing production process, mainly including uncoiling, welding, degreasing, annealing, air knife control of coating thickness and quality, post-plating cooling, water quenching, finishing, straightening, oiling, coiling and other processes. The product quality is ensured by strictly controlling the process parameters of each link.

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