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What are the differences between GL coil and GI coil?

Hi, I’m Ella Ma, the CEO of tytsteel.com. With more than 10 years of experience in OEM/ODM steel pipe, I’d love to share with you the valuable knowledge related to steel products from a Chinese supplier’s perspective. Hope you like this article, and please share it or subscribe to our newsletter.

Table of Contents

Key Differences:

  1. Material Composition: Galvanized aluminum coil is aluminum-based, whereas galvanized coil is steel-based.
  2. Weight: Aluminum coils are lighter than steel coils.
  3. Corrosion Resistance: Aluminum naturally resists corrosion better than steel, though both are enhanced by the galvanizing process.
  4. Strength: Steel is generally stronger and more durable than aluminum, making galvanized steel coils suitable for heavy-duty applications.
  5. Cost: Galvanized steel is often less expensive than galvanized aluminum due to the lower cost of steel and the higher production costs associated with aluminum.

Both types of coils are used to protect against corrosion, but the choice between them depends on the specific requirements of the application, such as weight considerations, environmental conditions, and cost constraints.

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