AZ90 Galvalume Steel Sheet 0.28mm DX51D for Industrial Refrigeration Equipment and Roofing Applications

１．Product Overview

AZ90 Galvalume Steel Sheet is a hot-dip aluminum-zinc coated steel product developed for roofing systems, industrial refrigeration equipment, electrical enclosures, appliances, and building components. The AZ90 coating combines aluminum's barrier protection with zinc's sacrificial corrosion resistance, helping extend service life in outdoor and industrial environments.

Produced with DX51D steel substrate and passivated surface treatment, this galvalume sheet offers a balance of corrosion resistance, formability, and processing performance for construction and manufacturing applications.

２．Technical Solution

The steel substrate is continuously coated with an aluminum-zinc alloy layer through the hot-dip galvalume process. The AZ90 coating creates a durable protective layer that reduces oxidation and atmospheric corrosion while maintaining good surface appearance.

Passivation treatment further improves storage stability and minimizes the risk of white rust during transportation and warehousing. DX51D steel provides excellent forming properties for bending, roll forming, stamping, and panel production.

３．Specifications

４．Application

• Roofing sheets and roof components
• Industrial refrigeration equipment
• Electrical control cabinets
• Industrial instruments
• Exterior wall cladding
• Garage doors
• Window blinds
• Refrigerators and freezers
• Air conditioning equipment
• Ventilation systems
• Solar water heater components
• Automotive heat shields
• Transportation equipment
• Vending machines
• Furniture components
• Medical equipment panels

５．Processing

• Roll forming
• Corrugating
• Bending
• Stamping
• Cut-to-length processing
• Slitting
• Profiling
• Panel fabrication
• Industrial enclosure manufacturing
• Appliance component production

６．Advantages

• AZ90 aluminum-zinc coating provides enhanced corrosion resistance for industrial and outdoor applications.
• DX51D substrate delivers excellent formability for manufacturing and fabrication.
• Passivated surface improves storage performance and handling reliability.
• Suitable for both construction and industrial equipment production.
• Regular spangle finish offers a consistent metallic appearance.
• Compatible with roofing, appliance, and refrigeration equipment applications.
• Supports long-term performance in humid and corrosive environments.

７．How to Choose

• Choose AZ90 coating for projects requiring a balance of corrosion protection and cost efficiency.
• Select DX51D when good forming and fabrication performance are required.
• Use 0.28mm thickness for lightweight panels, roofing sheets, and industrial enclosures.
• Consider passivated material for projects involving extended storage or overseas transportation.
• Confirm panel width requirements based on production equipment and finished product dimensions.

８．FAQ

Q1．What is AZ90 galvalume coating?

AZ90 is an aluminum-zinc alloy coating designed to provide improved corrosion resistance compared with conventional zinc-coated steel in many atmospheric environments.

Q2．What are the advantages of DX51D steel substrate?

DX51D offers excellent formability, making it suitable for bending, roll forming, profiling, and stamping operations.

Q3．Can this product be used for industrial refrigeration equipment?

Yes. AZ90 Galvalume Steel Sheet is widely used for refrigeration equipment, electrical cabinets, and industrial enclosures because of its corrosion resistance and fabrication performance.

Q4．What surface treatment is applied?

The product is supplied with passivated surface treatment to improve storage stability and reduce oxidation.

Q5．What industries commonly use AZ90 galvalume steel?

Construction, refrigeration equipment manufacturing, appliance production, transportation, industrial machinery, and furniture industries commonly use AZ90 galvalume steel products.