Regular Spangle Galvalume Steel Coil

Name: Regular Spangle Galvalume Steel Coil
SKU: 0

Aluminum-zinc-coated coils are high-performance metal coils made from cold-rolled steel coils as the base material, with a coating of a 55% aluminum-43.4% zinc-1.6% silicon alloy applied to the surface via a hot-dip process.
This product combines the dual advantages of aluminum’s physical barrier protection and zinc’s electrochemical sacrificial protection, offering corrosion resistance that is 2 to 6 times greater than that of ordinary hot-dip galvanized steel sheets. It is widely used in applications such as building roofing, home appliance casings, and automotive parts.

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Product Specifications：

Parameter	Specification Range
Thickness	0.12mm – 2.5mm (Common: 0.4mm, 0.5mm, 0.8mm)
Width	600mm – 1500mm (Common: 1000mm, 1250mm)
Coil Weight	3 – 10 MT per coil
Inner Diameter	508mm / 610mm
Coating Weight	AZ30 – AZ200 g/m² (Total for both sides)
Coating Composition	55% Aluminum + 43.4% Zinc + 1.6% Silicon
Tolerance	Thickness ±0.01mm / Width ±2mm

Key Advantages：

Superior Corrosion Resistance: The aluminum-zinc coating offers 2 to 6 times the corrosion resistance of hot-dip galvanizing in most atmospheric environments, making it particularly suitable for harsh conditions such as coastal areas and high-humidity environments.

Excellent Heat Resistance: Can be used for extended periods at temperatures up to 315°C without discoloration.

Outstanding Light and Heat Reflectivity: Reflects light and heat twice as effectively as galvanized steel, making it ideal for energy-efficient construction in hot regions.

Excellent Paint Adhesion: The surface can be painted directly without the need for pretreatment or weathering.

Superior Formability: Meets the requirements for further processing such as edge rolling, stamping, and bending.

Environmentally Friendly and Recyclable: The steel is recyclable and reusable, meeting green building requirements.

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