galvanized sheet

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Galvanized Steel sheet

Galvanizing is the process of applying a protective zinc coating to steel.

Carbon steel that has gone through this chemical process of galvanizing to keep it from corroding is called Galvanized Steel.

The zinc layers created during the galvanizing process produce a protective coat around the steel, locking out moisture and averting corrosion.

Galvanizing also enhances adhesion and abrasion resistance.

Country Of Origin : India

  • Additional information

    Advantages

    Some of the advantages of Galvanized Sheets 

    Corrosion Resistance - High-grade pure zinc coupled with uniform coating ensures highest Red Rust resistance.

    Uniform & Superior Zinc Adhesion - Superior Zinc adhesion is achieved through electrolytic cleaning of steel substrate before coating.

    Absolute Flatness - Absolute flatness is possible through 'Wet Skin Passing', which ensures improved surface texture and superior shape retention.

    Optimum Malleability & Ductility - Best substrate steel quality is achieved by applying close controls on process parameters right from Raw Material [Iron ore & Coal] stage to steel production ensuring desired quality right from Commercial to IF grades of steel.

    Superior Paint Adhesion - True zero spangled surface with RA factor varying between 0.8 - 1.4 ensures superior paint adhesion, better finish due to absence of spangles/crushed spangles, which also lowers paint requirement and hence, lowers the cost.

    Applications

    Some of the applications of Galvanized Coils & Sheets include -

    Automobile industry - Galvanized Coils & Sheets are used to produce air and oil filters, fuel and oil tanks, exhaust pipes etc.

    Appliances industry - Galvanized Coils & Sheets are used to make various components of Air Conditioners, Refrigerators, Washing Machines, Microwave Ovens, Air Coolers, Gas Stoves etc.



    Advance Information*

    Galvanized Steel Sheet

    Introduction to Galvanized Steel Sheet

    Galvanized steel sheet refers to carbon steel that has undergone a chemical process called galvanizing, where it's coated with a layer of zinc to prevent corrosion. The galvanizing process creates a protective barrier around the steel, effectively locking out moisture and other corrosion-inducing elements. This process not only shields the steel from rust but also enhances its overall durability, making it an excellent choice for a wide range of applications.

    The Galvanizing Process

    Step-by-Step Procedure:

    1. Preparation and Cleaning: The steel undergoes meticulous cleaning to remove any impurities, oil, grease, or scale. This step often involves a pickling process, where the steel is immersed in a hot acid bath to strip away any contaminants.
    2. Fluxing: After cleaning, the steel is dipped into a flux solution, typically made of zinc ammonium chloride. This step prevents oxidation before galvanizing and enhances the adherence of the zinc coating.
    3. Galvanizing: The prepared steel is then submerged in a molten zinc bath, which is typically heated to around 450°C (840°F). The zinc chemically bonds with the steel to create a uniform and robust coating.
    4. Cooling: Once the steel has been coated with zinc, it is removed from the bath and allowed to cool. During cooling, the zinc hardens and forms a protective layer over the steel surface.
    5. Inspection: The galvanized steel undergoes rigorous inspections to ensure the coating is uniform and adheres correctly to ASTM standards.

    Composition and Structure

    Zinc Coating:

    The key component in galvanized steel is the zinc coating. This layer is not merely a mechanical barrier but also serves as a sacrificial anode. When the steel is exposed to moisture or air, the zinc layer corrodes first, protecting the steel beneath.

    Adhesion:

    The galvanizing process enhances adhesion between the zinc layer and the steel substrate. Electrolytic cleaning of the steel surface before zinc coating ensures superior adhesion, providing enhanced durability and abrasion resistance.

    Advantages of Galvanized Steel Sheet

    Corrosion Resistance:

    The high-grade pure zinc and uniform coating ensure maximum protection against corrosion. The zinc coating prevents the steel from oxidizing, thereby significantly increasing its lifespan.

    Uniform & Superior Zinc Adhesion:

    The electrolytic cleaning process ensures that the zinc coating adheres uniformly and effectively to the steel, enhancing its long-term performance.

    Absolute Flatness:

    'Wet Skin Passing' technology enables absolute flatness of the steel sheets. This process refines the surface texture and maintains the superior shape retention for various applications.

    Optimum Malleability & Ductility:

    Stringent control measures from the raw material stage to the final product ensure that the steel sheets achieve the desired level of malleability and ductility. This makes them ideal for applications requiring bending, shaping, and forming.

    Superior Paint Adhesion:

    With a true zero spangled surface and a roughness average (RA) factor between 0.8 - 1.4, these steel sheets offer superior paint adhesion. The absence of spangles or crushed spangles not only results in a better finish but also reduces the amount of paint required, thereby lowering costs.

    Applications of Galvanized Steel Sheets

    Automobile Industry:

    • Air and Oil Filters: Utilized for making robust and corrosion-resistant air and oil filters.
    • Fuel and Oil Tanks: The interior linings of these tanks benefit from the non-corrosive zinc coating.
    • Exhaust Pipes: Zinc-coated steel ensures the longevity and durability of exhaust systems.

    Appliances Industry:

    • Air Conditioners: Components such as ductwork and outer casings are made from galvanized steel.
    • Refrigerators: Interior linings and back panels utilize galvanized sheets for enhanced durability and hygiene.
    • Washing Machines: The drum and other structural parts benefit from the non-rust properties.
    • Microwave Ovens: The outer shell and some interior parts are crafted from galvanized steel.
    • Air Coolers: Body panels and components are protected from rust and are structurally strong.

    Construction Industry:

    • Roofing and Claddings: Used extensively for roofing sheets, wall panels, and other structural components.
    • Fencing and Railings: Provides sturdy, long-lasting protection against the elements.
    • HVAC Ducts: Ensures ducts are safe from corrosion and maintains efficient airflow.

    Agricultural Sector:

    • Animal Pens and Barns: Ensures these structures are protected from moisture and animal waste.
    • Grain Silos: Non-corrosive properties keep grain storage units safe from rust.

    Technical Specifications

    • Thickness Range: Typically ranges from 0.4mm to 3.0mm, catering to different industry needs.
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    *Disclaimer: This additional description has been automatically generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
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