Primary applications of galvalume steel sheets

Aluminum-zinc coated steel sheets are a type of coated steel plate that combines excellent corrosion resistance, good workability, and cost-effectiveness. Their coating consists of aluminum (approximately 55%), zinc (approximately 43.5%), and trace amounts of silicon. The dense oxide film formed effectively blocks air and moisture from corroding the base material, offering significantly superior corrosion resistance compared to ordinary galvanized sheets. Its primary applications are concentrated in the following industries:

Construction and Building Materials Industry
This represents the core application area for aluminum-zinc coated steel sheets, accounting for the highest proportion.

Roofing and Wall Panels:
Used in roofing and wall cladding systems for industrial plants, warehouses, and large venues. They offer strong weather resistance, lasting over 15-20 years in outdoor exposed environments, with a high surface finish that easily complements various architectural styles.

Framing and Support Structures: Manufactured into light steel framing, ceiling supports, and curtain wall structures. Its excellent strength and corrosion resistance prevent rusting and deformation in humid environments.

Coil Stock for Color-Coated Sheets: Serves as the base material for color-coated steel sheets. After surface treatment, it is spray-painted for use in building facades and decorative panels. The coating exhibits strong adhesion and resists peeling and fading.

Home Appliance Manufacturing Industry Suitable for manufacturing appliance housings and internal structural components, particularly in scenarios with mild corrosion risks.

Refrigerators and Freezers: Used for cabinet shells, back panels, door frames, and other parts. Resistant to moisture and rust, ensuring appliance longevity.

Washing Machines and Air Conditioners: Frames for washing machine drums, outdoor unit housings for air conditioners, and heat sink brackets. Withstands outdoor or humid environmental corrosion.

Small Appliances:
Oven shells, microwave enclosures, water heater inner tank supports, etc., balancing heat resistance and corrosion resistance.

Automotive Industry
Primarily used for non-core structural components and external protective parts, offering better cost-performance than stainless steel sheets.

Chassis Components:
Such as underbody shields, spare tire wells, wheel arches, etc., resisting corrosion from road mud, water, and salt.

Interior/exterior trim components: Door inner panels, trunk lid panels, dashboard brackets, etc., with excellent formability to meet complex stamping requirements.

Exhaust pipe heat shields: Utilizing the coating's heat resistance to minimize high-temperature impact on surrounding components.

Agricultural and Livestock Equipment: Aluminum-zinc coated steel sheets are ideal for agricultural environments characterized by high humidity and corrosion.

Greenhouse Frame Structures: Replacing traditional galvanized pipes, it resists corrosion from rainwater and fertilizers for extended service life.

Livestock Equipment: Feed troughs, fencing, ventilation ducts, and housing enclosures withstand humid, ammonia-rich farm environments.

Agricultural Machinery Components: Housings, grain bins, and conveyor pipes endure harsh field conditions.

Warehousing and Logistics Equipment: Used for storage facilities exposed to prolonged or humid conditions.

Shelving Systems: Beams and column base plates for heavy-duty shelving, especially in cold storage and outdoor warehouses, offering far superior corrosion resistance compared to standard galvanized shelving.

Containers and Pallets: Side panels for lightweight containers and load-bearing panels for pallets, reducing rust damage during maritime transport or in humid environments.

Ventilation Ducts: Ventilation and smoke exhaust ducts in industrial plants and civil buildings resist rusting and clogging from condensation.

Other Applications

Furniture Manufacturing: Frames and panels for metal furniture like filing cabinets, shelving units, and wardrobe frames combine aesthetics with durability.

Electrical Equipment: Enclosures for distribution boxes and control cabinets prevent internal circuit short-circuits caused by steel plate corrosion.