What is Galvalume Steel Coil?
Galvalume steel coil is a specially treated steel product that is evenly coated with zinc and aluminum, creating a protective layer that enhances its corrosion and weathering resistance. This galvanizing process is very common in the steel industry because it effectively extends the service life of steel and reduces the risk of oxidation and corrosion. Galvalume steel coil is a steel product with excellent performance and widespread application.
Galvalume Steel Coil (55% Al-Zn Alloy Coated) Specification & Dimension Table
| Specification Item | Common Range | Standard / Typical Specifications | Notes |
|---|---|---|---|
| Base Thickness | 0.20 mm ~ 3.0 mm | 0.35mm, 0.40mm, 0.45mm, 0.47mm, 0.50mm, 0.55mm, 0.60mm, 0.70mm, 1.0mm, 1.2mm |
1. Thickness refers to the total of base steel + coating. 2. 0.47mm, 0.50mm are very common for building profiled sheets. |
| Width | 600 mm ~ 1500 mm | 914mm, 1000mm, 1200mm, 1220mm, 1250mm |
1. Width can be custom slit to specific requirements. 2. 914mm, 1000mm, and 1200mm are standard widths for pre-painted coils and building panels. |
| Coating Mass | 60 ~ 180 g/m² | AZ60, AZ80, AZ100, AZ120, AZ150, AZ180 |
1. AZXXX denotes the total coating mass on both surfaces (g/m²). 2. AZ80 and AZ100 are the most common grades in construction. |
| Coil I.D. (Inner Diameter) | 508mm or 610mm | 508mm (20 inches) | This is the standard mandrel size, compatible with most uncoiling equipment. |
| Coil O.D. (Outer Diameter) | 1000 mm ~ 1800 mm | Approx. 1200mm ~ 1500mm | O.D. is dependent on coil weight and packing method. |
| Coil Weight | 3 ~ 20 Tons per coil | 5 ~ 10 Tons | Specific weight depends on production line capacity and order details. |
Features of Galvalume steel coil:
1. Corrosion Resistance: The protective layer formed on the surface of galvalume steel coil effectively resists most corrosive factors. Galvalume steel coil maintains its excellent surface condition in humid environments and in highly corrosive environments.
2. Weather Resistance: Galvalume steel coil maintains its appearance and performance in a variety of climates. Whether in the extreme cold of northern regions or the scorching heat of southern regions, galvalume steel coil can withstand diverse climate challenges.
3. Aesthetics: Galvalume steel coil has a superior appearance and a smooth, even surface. This makes it widely used in fields such as construction, furniture, and decoration.
4. Plasticity: Galvalume steel coils have excellent plasticity and can be cold-bent, cut, and formed as needed. This makes them widely applicable in various projects.
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