Galvalume Coil Manufacturer & Supplier China

Galvalume steel coil, also known as GL coil or AZ coated steel, is a premium coated steel product offering superior corrosion resistance and longevity. This product is a cold-rolled steel substrate continuously hot-dip coated with a unique alloy of approximately 55% aluminum, 43.5% zinc, and 1.5% silicon. The result is a 55% aluminum zinc coated coil that combines the barrier protection of aluminum with the galvanic protection of zinc, making it an excellent, cost-effective alternative to traditional galvanized steel for demanding environments. ChinaCNU Steel, with over 15 years of expertise, supplies high-quality Galvalume coils from our factory in Qingdao, China, to a global clientele.

Product Specifications

Our Galvalume steel coils are manufactured to meet international standards, ensuring consistent quality and performance for various construction and industrial applications.

Applications

The exceptional durability and corrosion resistance of Galvalume coils make them suitable for a wide range of industries and structural uses.

• Building & Construction: Roofing and wall cladding, industrial sheds, and warehouse panels.
• Architectural Projects: Facades, ceiling systems, and rain screen cladding.
• Appliance Manufacturing: Housings for water heaters, HVAC units, and domestic appliances.
• Automotive Components: Exhaust systems, underbody parts, and structural reinforcements.
• Agricultural Buildings: Silos, barns, and livestock shelters requiring long-term protection.
• General Manufacturing: Electrical enclosures, ductwork, and various fabricated metal products.

Why Choose ChinaCNU Steel

When sourcing your AZ coated steel, partnering with a reliable manufacturer is crucial. Here’s why global buyers trust ChinaCNU.

• Direct Factory Source: We are a professional steel factory in Qingdao, ensuring competitive pricing and full quality control from production to delivery.
• Certified Quality: Our production is ISO 9001 certified, with coils routinely inspected by SGS, guaranteeing material conformity and performance.
• Flexible Order Quantities: We support project scalability with a manageable Minimum Order Quantity (MOQ) of 25 tons.
• Reliable Lead Time: We ensure timely delivery with a standard production and shipping lead time of 15 to 25 days.
• Secure Export Packing: Coils are packed with waterproof paper and steel wrappers, secured on wooden pallets or in steel crates for safe ocean freight.
• Global Export Expertise: With over 15 years of experience, we have successfully exported to 80+ countries across Africa, the Middle East, Southeast Asia, and South America.

Galvalume Steel Coil Pricing

The price for 55% aluminum zinc coated coil fluctuates based on raw material costs (steel, zinc, aluminum), coating weight, thickness, and international market trends. We provide transparent FOB Tianjin port pricing, which includes all costs up to loading on the vessel at our nearest port. For the most accurate and competitive factory price for your specific GL coil requirements, please contact us for a free, no-obligation quote. Our team will respond with detailed pricing within 24 hours.

Frequently Asked Questions (FAQ)

What is the main advantage of Galvalume coil over standard galvanized steel?

The primary advantage of Galvalume steel coil is its significantly enhanced corrosion resistance, which can be 2 to 4 times greater than that of conventional galvanized steel of equivalent coating thickness. This is due to the synergistic protective action of the aluminum-zinc coating, making it ideal for long-lasting roofing sheets and industrial cladding in corrosive environments.

Can you supply painted or coated Galvalume coils?

Yes, we can supply pre-painted Galvalume coils (PPGI). Our factory can apply various paint systems (PVDF, HDP, SMP) on the Galvalume substrate to provide additional color options, UV resistance, and aesthetic appeal for architectural building panels and modern facade designs.

What are the standard payment terms for importing Galvalume steel?

ChinaCNU Steel offers secure and flexible international payment terms, primarily by Telegraphic Transfer (T/T) with a standard deposit, or by Irrevocable Letter of Credit (L/C) at sight. We work with buyers to establish mutually agreeable terms that ensure a smooth transaction for bulk steel coil orders.

How do I determine the right coating weight for my aluminum zinc coated steel project?

Selecting the correct coating mass (e.g., 100g/m², 150g/m²) depends on the environmental corrosivity and the expected service life of your product. For standard roofing in non-coastal areas, a lighter coating may suffice. For severe industrial or marine atmospheres, a heavier aluminum zinc alloy coating is recommended. Our technical team can advise based on your specific application.

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Need the full spec range? See the complete Galvalume steel coil specifications (AZ coating classes, grades, sizes) or download the PDF spec sheet.