Galvalume Steel sheets

Galvalume steel sheets are premium metallic coated steel products, which featuring a proprietary alloy coating (approximately 55% aluminum, 43.5% zinc, and 1.6% silicon) that merges the corrosion resistance of aluminum with the electro-chemical protection of zinc. Its dense, adherent coating forms a robust barrier against rust and environmental damage. Even if sheets were scratched, the alloy continues to shield the base steel. This material also boasts excellent heat reflectivity (up to 80% solar reflectance) and shows a sleek spangle finish, which helps in balancing performance with aesthetic appeal. Engineered for longevity, it ply an important role in reducing the maintenance costs and extending product’s service life across demanding applications.

Technical Specifications

Item	Specification Range
Thickness	0.12mm - 6.0mm
Coating Weight	50g/m² - 200g/m² (double-sided)
Sheet Width	600mm - 1600mm
Length	1000mm - 6000mm (customizable for large projects)
Coating Adhesion	Exceeds ASTM A792 standards; no peeling in forming tests
Surface Finish	Regular spangle, minimized spangle, chromate-free options
Tensile Strength	270MPa - 590MPa
Elongation	≥12% (varies by thickness and grade)
Corrosion Resistance	3000-6000 hours salt spray test (dependent on coating weight)
Heat Reflectivity	Up to 80% solar reflectance
Standards Compliance	GB/T 12754-2019, ASTM A792, JIS G3321

Industry Applications & Use Cases

Architectural & Construction

● High-end commercial building roofing and facades

● Curtain walls and exterior cladding

● Industrial warehouse metal roofing

● Architectural decorative trim and moldings

● Solar panel mounting frames and supports

Industrial Manufacturing

● Corrosion-resistant ventilation and ductwork

● Chemical processing equipment enclosures

● Power plant structural components

● Industrial machinery housings

● Parts for high-humidity or caustic environments

Transportation Infrastructure

● Highway noise barriers and traffic signage

● Railway station canopies and platform covers

● Airport terminal roofing and exterior cladding

● Marine port equipment and facility components

● Container terminal storage structures

Agriculture & Food Processing

● Controlled-environment greenhouse frames

● Food processing plant interior panels and equipment

● Livestock barn roofing and walling

● Grain storage silos and handling systems

● Agricultural equipment housings

Energy & Utilities

● Solar farm support structures and racking

● Wind turbine nacelle components

● Power distribution cabinet enclosures

● Water treatment plant facility panels

● Oil/gas industry non-pressure structural parts

Commercial & Residential

● Shopping mall and retail center exteriors

● Sports stadium roofing and cladding

● Multi-residential building facades

● Car park canopies and structural frames

● Outdoor furniture and recreational facility components

Company Profile

At Ecosteel Source, we combine manufacturing expertise and global trade experience to deliver sustainable, high-performance steel materials and advanced building solutions that shape the future of modern construction.

With a full range of products covering Zinc-Aluminum-Magnesium (ZAM) coated steel, galvalume (GL) steel, galvanized (GI) steel, pre-painted steel (PPGI/PPGL), as well as floor deck systems, C/Z/U structural purlins, metal studs&tracks (roof&wall), corrugated color steel sheets (roof&wall), sandwich panels and cleanroom panels, we deliver comprehensive solutions for modern roofing and wall cladding systems.

Combining advanced processing capability, strict quality control, and customized service, Ecosteel Source aims to help our partners to build durable, energy-efficient, and sustainable architectural projects worldwide.

Pack & Ship

Shipping & Paymentterm

How to start your Project and Business?

Inquiry

Provide product specifications(materia size, coating, color, quantity, application).
Quotation

Get formal quotation with price, leao time, payment,and other details.
Sample

Confirm samples or drawings for customized colors patterns.
Contract & Payments

Sian Pl/contract and pay deposit to schedule production; Special customizec products require full payment in advance.

Production

Manufacturing with strict quality control,third-party inspection available.
Packing & Balance

Packed to international standards,and settle balance payment.
Shipment & Documents

Shipment arranged with documents,receive full set of shipping documents.
After-sales

Technical support,long-term supply and project services.