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What is Galvanized Steel Sheet? Applications of Galvanized Steel Sheet

5 June, 2023 by
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In the contemporary construction industry, the utilization of dependable and premium-grade materials is of utmost importance. Among these materials, Galvanized Steel Sheets play a vital role, known for their exceptional durability and protective coatings.

1. What is Galvanized Steel Sheet?

Galvanized Steel Sheet, a variant of rolled metal products, refers to an ordinary steel sheet that has been coated with a layer of zinc for enhanced protection against moisture and air exposure. 

This protective coating can be applied on one or both sides of the steel sheet, with the thickness varying based on the intended application area and the anticipated humidity level of the environment.

Galvanizing Methods:

  • Galvanic Method: This method involves the application of zinc on a metal surface by utilizing an electrolyte solution.
  • Hot-Dip Galvanizing: In this method, a metal, typically iron or steel, is coated with a layer of zinc by immersing the product in a bath of molten zinc at a high temperature of around 460°C.
  • Cold Galvanizing: This method entails coating a metal surface with a specialized composition containing zinc powder, applied at lower temperatures.
  • Sherardization: Sherardization is a galvanizing technique that utilizes either zinc powder or zinc vapor at high temperatures ranging from 300 to 450°C to create a protective layer on the metal.
  • Zinc Spraying: This process involves applying zinc to the metal surface through the use of a specialized technical gun that releases zinc particles onto the substrate.
  • Gas-Dynamic Galvanizing: Zinc coating is achieved by employing a supersonic jet stream to apply the zinc onto the metal surface in this galvanizing method.

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2. Classification of Galvanized Steel Sheet

Technical requirements for galvanized products vary across different countries, and these standards establish the branding and size range of such products. The primary classification criteria for include:

  • Application Area: Galvanized Steel Sheets are categorized based on their intended use, such as profiling, cold forming, or fabrication of metal structures.
  • Coating Material Composition: The chemical composition of the coating material distinguishes Galvanized Steel Sheets, which can be made of pure zinc or alloys like zinc-iron, zinc-aluminum, aluminum-zinc, and zinc-magnesium, among others.
  • Thickness/ Weight of the Protective Coating: Galvanized Steel Sheets are further classified based on the thickness or weight of the galvanized protective coating applied to the surface.

 
 


3. The Main Applications of Galvanized Steel Sheet

Galvanized Steel Sheets have gained significant popularity across various industries and manufacturing sectors due to their exceptional breaking strength, easy installation, durability, and resistance to corrosion and harsh environments. In the realm of roofing, Galvanized Steel Sheets are widely employed, primarily because of their lightweight nature. Furthermore, this material serves as a fundamental component for manufacturing additional roofing and facade elements, forced ventilation systems, ducts, gutters, and downspouts. It also finds extensive use in fabricating various structural elements and parts utilized in nearly all areas of industrial and civil engineering construction. Additionally, Galvanized Steel Sheets are commonly utilized in the production of profiled sheeting, metal tiles, and metal siding. Moreover, they are employed in the construction of silos, temporary storage facilities, and agricultural silages. In practical applications, Galvanized Steel Sheets can be found virtually everywhere, as their elements are present in numerous structures around us. From ships, airports, and railway stations to billboards, cars, stairs, cornices, fences, and other metal structures, Galvanized Steel Sheets play an integral role.

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4. Advantages of Galvanized Steel Sheet

  • Extended Lifespan: Galvanized Steel Sheets exhibit exceptional durability, with a minimum usage period of 10 years, ensuring long-term performance.
  • Superior Metal Combination: The zinc coating seamlessly interacts with the metal base, preventing cracking, exfoliation, rupture, and detachment during usage.
  • Environmentally Friendly: Zinc, being a natural material, does not release harmful toxins, making galvanized steel environmentally safe for use in residential areas.
  • Versatile Applications: Galvanized Steel Sheets find a wide range of applications across various industries and construction projects, offering flexibility in design and usage.
  • Easy Installation and Repair: Galvanized Steel Sheets are simple to install, allowing for convenient setup and subsequent repairs if needed.
  • Aesthetically Pleasing: Galvanized Steel Sheets exhibit an appealing appearance, enhancing the visual appeal of structures where it is utilized.
  • Reusability: After dismantling, old Galvanized Steel Sheets can be reused without compromising their technical features and initial properties, contributing to sustainable practices.
  • Cost-Effective: Galvanized Steel Sheets are known for their affordability, making them a cost-effective building material that delivers value for money.

In summary, Galvanized Steel Sheets combine longevity, structural integrity, eco-friendliness, versatility, ease of installation, aesthetic appeal, reusability, and affordability, making it a highly sought-after choice in various industries and construction projects.

Visit our Official Website today to explore the full range of Galvanized Steel Sheet:

Read More: What is Galvanized Steel? The Galvanized Steel Manufacturing Process

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