55%-AL Galvalume steel sheet（GL）
Still deciding? Get samples first, Contact US !
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55%-AL Galvalume steel sheet（GL）
55%-AL Galvalume steel sheet（GL）
Still deciding? Get samples first, Contact US !
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55%-AL Galvalume steel sheet（GL）
- Description
-
Galvalume steel sheet is a high-performance alloy-coated steel produced via a continuous hot-dip process. The unique metallic coating—comprising 55% aluminum, 43.4% zinc, and 1.5% silicon—is integral to its exceptional properties.
I. Key Characteristics
Exceptional Corrosion Resistance: The aluminum content forms a continuous, protective barrier of aluminum oxide, offering superior resistance to atmospheric and industrial corrosion compared to standard galvanized steel. This results in a service life 2 to 6 times longer.
Excellent Formability:The coating exhibits strong adhesion and ductility, allowing the steel to be bent, formed, and stamped without significant coating damage such as cracking or spalling.
Superior Coating Adhesion:Its surface properties make it an ideal substrate for painted and coated products, ensuring outstanding adhesion for both liquid paints and powder coatings.
Enhanced Heat Resistance:Owing to aluminum's high melting point, it withstands higher service temperatures (up to 315°C / 600°F) and provides better resistance to heat oxidation than traditional galvanized steel.
Effective Heat Reflectivity:The bright, silvery surface efficiently reflects radiant heat, contributing to improved energy efficiency in building applications.
II. Application Fields
Galvalume steel sheet is widely specified across diverse industries due to its robust performance:
1. Building & Construction
Building Envelope:Extensively used for long-lasting, weather-resistant roofing and wall cladding systems in commercial, industrial, and agricultural buildings.
Door & Window Systems: Fabricated into durable window frames, roller shutters, and sectional doors.
Structural Components: Used as structural framing, purlins, and in the construction of mobile homes.
Interior Applications: Employed as functional and decorative panels for interior wall linings and door frames.
2. Automotive Industry
Used in components such as body panels, doors, trunk lids, fenders, chassis parts, and fuel tanks, where it reduces weight and provides crucial corrosion protection.
3. Home Appliance Manufacturing
The preferred material for bases, outer cabinets, and inner liners of refrigerators and freezers, as well as for various kitchen appliances and equipment.
4. Other Industrial Sectors
Substrate for Coated Steel: Serves as a premium base metal for high-performance pre-painted (coil-coated) steels, including electrostatic powder-coated variants.
Blank Fabrication: Supplied as blanks for further manufacturing into products like steel window frames.
Product Specifications
Techinical Standard JIS 3302/GB 2518/EN10143 Grade DX51D+Z,SGCC Types Commercial/Drawing/Deep Drawing/Structural quality Width 30-1250mm Thickness 0.10-1.20mm Zinc coating Z40-300g/m2 Surface treament chromed /skinpass/ oiled/parkerizing/dry/anti-fingerprint Surface structure zero spangle /mini spangle /regular spangle/ big spangle ID coil 508mm or 610mm Project Nominal dimensions(mm) Nominal thickness 0.1-1.5 Nominal thickness Steel plate and steel belt 500-1250 Longitudinal cutting steel belt <600 Nominal length Steel plate 1000-8000 Nominal length Steel belt and longitudinal cutting steel belt 610 or 508 Category of Structures of Clad Layer
Classification item Category Code Types of clad layer Zinc clad layer Z Zinc-iron alloy's clad layer ZF Patterns of clad layer Clad layer with uniform thickness A(g / m2) / B(g /m2)(A=B) A/B Clad layer with different thickness A(g / m2)/ B(g / m2)(A≠B) After negotiation between the supplying and demanding parties, the code of equal-thickness plating can be expressed by the sum of the weights of both sides, A is the weight of plating on the outer surface of the steel strip or the surface plating on the steel plate (g/m2); B is the weight of plating on the inner surface of the steel strip or the weight of plating on the lower surface of the steel plate (g/m2).
Production Line
The company is equipped with state-of-the-art facilities, including three fully automated color-coated production lines and two high-performance galvanizing lines, forming an efficient and integrated modern production system. Our professional team of nearly 300 employees implements refined management and lean production principles, achieving an outstanding annual output exceeding 500,000 tons. Our production capacity and product quality consistently rank among the industry's top performers.
Quality Control
To enhance industrial chain synergy and market coverage, the company has established an efficient group-wide operational system.
Foreign Trade
Our products are exported to over 50 countries and regions worldwide, including South Korea, Russia, Southeast Asia, the Middle East, Africa, Europe, and South America. With our exceptional quality and professional service, we have earned the trust of customers both domestically and internationally.
Application Areas
Our product portfolio is comprehensive and diverse. Core offerings include galvanized steel sheets, color-coated steel sheets, embossed steel sheets, patterned steel sheets, home appliance steel sheets, fingerprint-resistant steel sheets, color steel roofing tiles, and composite panels. Renowned for their exceptional stability, exquisite appearance, and reliable performance, these products are widely utilized across multiple vital sectors of the national economy, including construction, home appliances, and transportation.
FAQs
What are the advantages of your factory and production lines?
We operate fully automated color-coated steel sheet production lines and continuous hot-dip galvanizing/aluminium-zinc coating lines. For instance, our color-coated sheet production line operates at speeds up to 120 meters per minute and employs advanced processes such as “two-coat, two-bake” systems. This ensures exceptional stability and superior performance in surface quality, dimensional accuracy, and coating properties.
What is your advantages?
OEM with competitive price,Full of inventory with large warehouse, Complete sizes,grade and MOQ,24 hours online service, feedback within one hour.More important, we have raw material advantages,and the ppgi coil can be supplied with certification and test.
What is the standard specification range for the product? Is customization available?
Color-coated steel sheets: Typically 0.15mm - 0.8mm thick, with widths ranging from 750mm to 1300mm.
Galvanized/Al-zinc coated coils: Thickness ranges available upon customer request.
We support deep customization of product specifications, including thickness, width, length, coating color, and film thickness.
Can you provide a sample?
Yes. We're happy to provide samples for you to evaluate color, coating, and material. For standard products, we typically offer these free of charge; for custom products, a small fee may apply, which can be applied toward future orders.
How to place an order and the process?
Inquiry: Contact us via email/website form to specify your product requirements.
Quotation: We provide a detailed Proforma Invoice (PI) detailing pricing, specifications, payment terms, delivery lead times, etc.
Confirmation & Advance Payment: You confirm the Proforma Invoice and remit the agreed advance payment.
Production: Production commences immediately upon receipt of the deposit.
Pre-Shipment Inspection (Optional): Arrange inspection as required.
Final Payment & Shipment: You pay the balance as agreed; we arrange transportation and provide shipping documents.
Delivery: Goods arrive at the destination port/specified address.
How does the company ship orders, and what are the shipping costs?
We offer both FOB and CIF trade terms, with CIF being the solution we recommend for most clients. Why? When using CIF terms, we handle everything end-to-end—from export clearance to ocean freight and insurance—ensuring your goods arrive safely at the destination port. This saves you the hassle of coordinating complex overseas logistics. Freight costs may fluctuate based on destination, order volume, and market conditions, but we provide transparent quotes upon order confirmation.
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No. 1658, International Steel Trade City, Xingfu Town, Boxing County, Binzhou, Shandong, China