Wugang galvanized coil 0.75 * 1250mm zinc layer 120g corrosion-resistant for building appliances

Description :

  Wuhan Iron and Steel Galvanized Coil is a steel product that is coated with a layer of zinc on the surface of cold-rolled steel plates, mainly to solve the problem of rusting of metal substrates in humid or corrosive environments. This specification is a coil with a thickness of 0.75mm and a width of 1250mm, with a zinc layer weight of 120g/m ², suitable for working conditions with moderate requirements for anti-corrosion performance. Typical application scenarios include building structural components, household appliance casings, ventilation ducts, and general hardware products. Wuhan Iron and Steel Galvanized Coil, with its stable substrate quality and uniform zinc layer adhesion, has become a widely used raw material in industrial manufacturing, which can effectively extend the service life of subsequent processed products and reduce maintenance costs.

  The execution standard of the galvanized coil of Wuhan Iron and Steel Group usually follows GB/T 2518 or similar international standards. The zinc layer structure is dense, with good adhesion and impact resistance. In terms of specifications, the thickness tolerance is controlled within the allowable range of national standards, and the width of 1250mm is a common standard width, which is convenient for subsequent slitting or stamping processing. The weight of the zinc layer is 120g/m ², which belongs to the medium anti-corrosion level. The double-sided galvanizing process ensures consistent protection on both sides of the sheet. The material substrate is mostly low-carbon steel, which has good formability and welding performance. The surface condition is usually normal zinc flower or no zinc flower (may vary slightly depending on the specific production batch), with high surface flatness, suitable for secondary surface treatment such as spraying and roller coating, to meet diverse appearance requirements.

  When selecting, it is necessary to clarify the applicable scenarios and limitations of Wugang galvanized coils. 120g zinc coating is suitable for indoor or mild outdoor environments. If used in high humidity, high salt spray coastal areas, or strong acid-base environments, it is recommended to choose products with higher zinc coating (such as 180g, 275g) or aluminum zinc alloy coating. Compared with cold-rolled sheets, galvanized coils from WISCO have the advantage of rust prevention; Compared with stainless steel, it has lower cost but lower corrosion resistance limit. When purchasing, attention should be paid to the strength level of the substrate. For ordinary stamping, choose DC01/DC03, and for deep stamping, choose DC04/DC05. In addition, attention should be paid to the storage environment to avoid long-term outdoor storage that may cause white rust and affect the subsequent coating effect.

  During the installation and use of galvanized coils in Wuhan Iron and Steel Group, attention should be paid to the anti-corrosion treatment of the cutting section. It is recommended to supplement zinc or paint the cutting edge for protection to prevent preferential corrosion at the cutting edge. In daily maintenance, the surface should be kept clean to avoid long-term residue of acidic or alkaline substances. The typical usage cycle can reach more than 10 years in normal indoor environments, while the outdoor environment depends on climate conditions. Common faults include scratches during transportation, white rust or black spots caused by improper storage. Once surface abnormalities are discovered, they should be promptly cleaned and evaluated for their impact on subsequent processing. It is recommended to optimize the mold gap during processing to reduce the risk of zinc layer peeling and ensure stable quality of the finished product.

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