AZ120 DX52D Cold Rolled Galvalume Steel Coil for Metal Roofing and Construction Applications

１．Product Overview

AZ120 DX52D Cold Rolled Galvalume Steel Coil is manufactured with an aluminum-zinc alloy coating that combines the corrosion resistance of aluminum with the sacrificial protection of zinc. Designed for roofing, wall cladding, and industrial applications, this product offers long-term durability and excellent weather resistance.

The AZ120 coating provides reliable protection in outdoor environments, making it suitable for metal roofing systems, building panels, and construction projects requiring extended service life.

２．Technical Solution

The steel substrate is continuously hot-dip coated with an aluminum-zinc alloy layer containing approximately 55% aluminum, 43.5% zinc, and 1.5% silicon. This coating structure improves corrosion resistance and thermal reflectivity compared with conventional galvanized steel.

Surface treatments such as chromated, oiled, and anti-fingerprint finishes enhance storage stability and fabrication performance.

３．Specifications

４．Application

This product is widely used for metal roofing systems, wall cladding panels, garage doors, industrial buildings, warehouses, household appliances, ventilation systems, shipbuilding, transportation equipment, electrical cabinets, and furniture manufacturing.

５．Processing

The Galvalume coil can be processed through slitting, cut-to-length production, roll forming, profiling, bending, stamping, and roofing sheet manufacturing.

Anti-fingerprint and chromated surface treatments help improve fabrication efficiency and storage performance.

６．Advantages

• Excellent corrosion resistance with AZ120 coating
• High heat reflectivity for roofing applications
• Long service life in outdoor environments
• Available with multiple surface treatment options
• Suitable for roll forming and fabrication processes
• Wide thickness and width range available
• Stable coating adhesion and appearance
• Suitable for construction and appliance industries

７．How to Choose

• Choose AZ120 coating for roofing and cladding projects requiring enhanced corrosion protection.
• Select thinner gauges for lightweight roofing panels and thicker gauges for structural applications.
• Choose anti-fingerprint treatment when appearance retention is important.
• Confirm width according to roll-forming or panel production requirements.
• Select G550 grade when higher strength performance is required.

８．FAQ

Q1．What is the coating type of this product
The product uses an aluminum-zinc alloy coating with coating weights from 30g/m² to 275g/m², including AZ120.

Q2．What thickness range is available
Thicknesses from 0.12mm to 4.0mm are available.

Q3．What surface treatments can be supplied
Coated, chromated, oiled, and anti-fingerprint surface treatments are available.

Q4．What applications is this product suitable for
It is suitable for roofing, wall cladding, construction, appliances, shipbuilding, transportation, and industrial equipment.

Q5．What are the benefits of Galvalume steel compared with galvanized steel
Galvalume steel offers improved corrosion resistance, better heat reflectivity, and longer service life in many outdoor environments.