Aluzinc Steel Coils / Galvalume Steel Coil for Steel Buildings & Industrial Commercial Roofing
High-quality Aluzinc steel coils designed for superior corrosion resistance and durability in steel buildings and industrial commercial roofing applications.
| Specification |
Details |
| Standard |
AISI, ASTM, BS, DIN, GB, JIS |
| Type |
Coils, Sheets |
| Surface |
Galvanized Coated, Aluzinc Coated Coils |
| Surface Structure |
Normal Spangle Coating (NS), Minimized Spangle Coating (MS), Spangle-Free (FS) |
| Zinc Coating |
60-275g/m² |
| Thickness |
0.12mm-4.0mm |
| Width |
600mm-1250mm |
| Coil Weight |
3-5 Tons or as Required |
| Coil ID |
508mm/610mm |
| Coating |
PE/PVDF/HDP/SMP |
| Top Painting |
10-35 Microns |
| Back Painting |
5-35 Microns |
| MOQ |
5 Tons (1 20ft FCL) |
| Payment Term |
T/T (30% Deposit + 70%) |
Product Display
Custom Packaging
Product packaging can be customized according to customer requirements and factory standards.
Key Advantages
Low Processing Cost
The cost of hot-dip galvanizing and rust prevention is lower than that of other paint coatings.
Multi-faceted Protection
Each part of the plated components can be coated with zinc, even in recesses, sharp corners, and hidden places, ensuring comprehensive protection.
Simple and Convenient Inspection
The hot-dip galvanized layer can be tested visually and with simple non-destructive coating thickness measurement equipment.
Applications
Packaging & Shipping
Frequently Asked Questions
What is Aluminum-Zinc Coated Steel?
It is a steel sheet coated with an alloy consisting of approximately 55% aluminum, 43.5% zinc, and 1.5% silicon. It combines the corrosion resistance of aluminum with the sacrificial protection of zinc.
What is the difference between GI (Galvanized) and GL (Galvalume)?
GI (Galvanized): Coated with pure zinc. It offers excellent sacrificial protection but has a shorter lifespan in corrosive environments.
GL (Galvalume): Coated with an aluminum-zinc alloy. It offers 3 to 6 times better corrosion resistance than GI and has better heat reflectivity.
What surface finishes are available?
We offer three main types:
• Regular Spangle: Standard crystalline pattern
• Minimized Spangle: Fine, uniform surface
• Zero Spangle: No visible pattern, ideal for painting
Can it be painted?
Yes. We supply Pre-Painted (PPGI/PPGL) coils with various polyester, silicon modified polyester (SMP), or PVDF (fluorocarbon) coatings. We also supply bare (unpainted) coils suitable for post-painting.
What thicknesses and widths are available?
Thickness: Typically 0.12mm to 2.0mm
Width: Typically 600mm to 1,250mm (Custom sizes are available upon request)
What are the common applications?
• Construction: Roofing sheets, wall cladding, gutters, and sandwich panels
• Home Appliances: Air conditioner covers, refrigerator back panels, and ovens
• Industrial: Automotive parts and agricultural equipment
How is the coil packed for export?
To ensure seaworthy transportation, we use:
• Anti-rust oil film
• Waterproof kraft paper
• Galvanized iron sheet wrapping
• Steel pallets with edge protectors