１．Product Overview

JIS G3321 AZ45 Galvalume Steel Coil is an aluminum-zinc coated steel product designed for applications requiring corrosion resistance, heat reflectivity, and long service life. The coating combines aluminum and zinc to provide improved atmospheric protection compared with conventional galvanized steel.

The material is widely used in roofing systems, wall panels, home appliances, decorative products, and industrial manufacturing where durability and appearance are important.

２．Technical Solution

The steel substrate is continuously coated with an aluminum-zinc alloy layer through a hot-dip process. The coating forms a protective barrier that helps reduce corrosion while maintaining good formability and processing performance.

The passivated surface treatment improves storage resistance and surface stability during transportation and fabrication.

３．Specifications

４．Application

The product is suitable for roofing panels, wall cladding systems, industrial buildings, residential construction, household appliances, ventilation systems, transportation equipment, electrical cabinets, vending machines, furniture manufacturing, and decorative applications.

５．Processing

The material can be processed by slitting, cut-to-length production, roll forming, bending, stamping, profiling, color coating, and fabrication into roofing and wall panel systems. It maintains stable coating adhesion during forming operations.

６．Advantages

• Excellent corrosion resistance from aluminum-zinc coating
• Good heat reflectivity for roofing applications
• Stable surface quality with regular spangle finish
• Suitable for both construction and appliance industries
• Good formability and fabrication performance
• Passivated surface improves storage protection

７．How to Choose

• Choose AZ45 coating for general indoor and light outdoor applications.
• Select thickness according to structural and forming requirements.
• Choose wider coils to improve processing efficiency for large panel production.
• Verify coil weight compatibility with processing equipment.
• Select passivated surfaces when storage protection is required.

８．FAQ

Q1．What standard does this product comply with
The product is manufactured according to JIS G3321 and can also meet ASTM and GB requirements.

Q2．What is the coating type
It uses an aluminum-zinc alloy coating commonly known as Galvalume or Aluzinc coating.

Q3．What is the coil width
The coil width is 1500mm.

Q4．What industries use Galvalume steel coils
They are widely used in construction, home appliances, transportation equipment, industrial machinery, and furniture manufacturing.

Q5．What surface treatment is available
This product is supplied with a passivated surface treatment and regular spangle finish.