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Wholesale Galvalume Aluzinc Zinc aluminum Coating Roofing Sheets Corrugated House Roof Wall Aluminum Roof Panels Manufacturer, Factories

GL steel coil is a super material compared with regular Galvanized Steel. Aluzinc is a coating material formed from a mixture of Aluminum (55%), Zinc (43.4%) and Silicon (1.6%). Durable and long-lasting, it provides superior performance and corrosion resistance under all environmental conditions.

Product Description

Galvalume Steel Coil/Sheet Specifications
Product NameGalvalume Steel Coil/Sheet
Thickness0.12-2.5mm
WidthWithin 2000mm or according to customer's request
Surface treatmentChromated/ Anti-fingerprint
GradeSGLCC, DX51D+AZ
TypesCommercial/Drawing/Deep Drawing/Structural
Type of coatingGalvalume (Alum-zinc)
Surface finishChromated/oiled/dry/anti-fingerprint/skinpassed
Base metalCold rolled steel
Coil ID508mm or 610mm
MOQ25 Metric tons
Supply Capacity20,000 MT per month
PackageStandard exporting package (waterproof papers + galvanized iron sheet + metal strips + inner protective steel ring + outer protective steel ring)
Price termsFOB, CFR, CIF
Payment terms30% TT in advance + 70% T/T balance or irrevocable 100% L/C at sight
Delivery Time7-15 days after receipt of 30% TT
Product Description

GALVALUME steel sheet is an aluminum-zinc alloy-plated steel sheet. The plating consists of 55% aluminum, 43.4% zinc and 1.6% silicon. By adding the galvanization (galvanic protection) of zinc to the long-term durability and heat resistance of aluminum, a Galvalume steel sheet has a durability of about three to six times longer than galvanized steel (270 g/m² both) under various conditions of use.

🛡️ Excellent Durability

Proven to be 3-6 times more durable than standard galvanized steel, especially in coastal areas and harsh industrial environments.

🌱 Eco-friendly Material

Coated with a special film through treatment that contains absolutely no chromate, ensuring environmental safety.

🔥 Heat Resistance

High aluminum content (55% mass ratio) provides heat resistance similar to aluminized steel, ideal for appliances like ovens and rice cookers.

☀️ Heat Reflectance

High surface reflectance effectively prevents indoor temperature rises in roofing applications by minimizing surface heat absorption.

Aesthetic Surface

The silver surface features a unique delicate spangle, highly valued for modern architectural and building materials.

🎨 Versatile Processing

Offers the same excellent workability and paintability as galvanized steel, allowing for post-production painting and forming.

Frequently Asked Questions
What is the composition of Galvalume coating?
The coating is composed of 55% aluminum, 43.4% zinc, and 1.6% silicon, combining the protective properties of both aluminum and zinc.
How does Galvalume compare to Galvanized steel in lifespan?
Galvalume typically lasts 3 to 6 times longer than standard galvanized steel under the same environmental conditions, particularly in corrosive atmospheres.
Can Galvalume steel be used for roofing?
Yes, it is excellent for roofing due to its superior heat reflectance, which helps keep indoor temperatures lower, and its high resistance to atmospheric corrosion.
Is Galvalume steel paintable?
Absolutely. Galvalume steel sheet provides excellent paint adhesion and can be worked or painted similarly to galvanized steel sheets.
What surface treatments are available?
Common treatments include chromated, oiled, anti-fingerprint, and skin-passed finishes to meet different aesthetic and functional requirements.
What are the typical delivery terms for orders?
Standard delivery time is between 7-15 days after the receipt of the initial 30% deposit, depending on the order volume and specifications.

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