S350GD+ZAM275 Zn-Al-Mg Alloy Steel Strip

• Grade: S350GD+ZAM275
• S: indicates structural steel.
• 350: indicates the specified minimum yield strength of 350MPa.
• GD: indicates zinc alloy.
• ZAM: indicates zinc-aluminum-magnesium alloy coating.
• 275: indicates the coating weight is 275 g/m2.
• Specifications
• Thickness: generally 0.1-6.0 mm.
• Width: usually 100-1600 mm.

(1) Strong corrosion resistance: Due to the presence of aluminum and magnesium elements, aluminum will form a dense aluminum oxide film on the surface. Magnesium can enhance the cathodic protection during the cutting edge corrosion process, which greatly improves the corrosion resistance of the alloy strip steel, which is several times or even higher than that of ordinary pure galvanized sheet, and can effectively resist various harsh environments.

(2) Cut self-healing property: It has a unique self-healing function at the cut and punch position, and does not require subsequent treatment. It overcomes the inherent defect of traditional coated plates that are prone to rust at the cut, and can maintain good corrosion resistance during long-term use.

(3) Good processing performance: It has good welding processing performance, paint adhesion and spot welding performance, etc. It can adapt to various cold bending, stamping and other processing methods, and can meet the processing needs of different industries.

(4) Good thermal stability: It can withstand a certain high temperature and has good thermal stability. It can be used in some environments with temperature requirements.

(5) Environmental protection and energy saving: It has passed a number of environmental protection tests and meets environmental protection requirements. It is a new type of environmental protection and energy-saving material.

(1) Construction industry: Zn-Al-Mg alloy steel can be used for building structures such as roofs, walls, and roof panels. With its excellent corrosion resistance and durability, it can effectively resist wind and rain erosion and extend the service life of the building.

Photovoltaic industry: It is widely used in photovoltaic brackets. It can maintain stable performance for a long time in outdoor environments to ensure the safe operation of photovoltaic equipment.

(2) Automobile manufacturing: Applicable to automobile body structural parts, chassis parts, etc., which can improve the corrosion resistance and service life of automobile parts. At the same time, good processing performance also facilitates the production and manufacturing of automobile parts.

(3) Home appliance field: Used in home appliance shells, brackets and other parts, it can improve the appearance quality and corrosion resistance of home appliance products and enhance the market competitiveness of products.

(4) Power industry: In the manufacture of power equipment, such as substation brackets and cable trays, it can withstand complex outdoor environmental conditions and ensure the safe and stable operation of power facilities.

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.

Surface treatments such as passivation, fingerprint resistance and oiling are usually performed to further improve its corrosion resistance and surface quality to meet the needs of different users.

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