0.5mm aluminum-zinc coated roof sheet, with cold-rolled steel as the substrate and is processed with 55% Al-Zn alloy hot-dip coating, offers corrosion resistance, heat insulation, lightweight properties, and high strength. It is suitable for factories, villas, coastal buildings, and more, with a service life of over 25 years. Wanzhi also supplies 0.5mm prepainted aluzinc and prepainted galvanized steel sheet, coils, strips and metal roofing sheets in customizable sizes and specifications. Equipped with 7 production lines and an annual production capacity of up to 600,000 tons, Wanzhi’s products have been exported to over 120 countries and regions worldwide.
Specification
| Product Name | 0.5mm Galvalume/Aluzinc Roofing Sheet |
|---|---|
| Substrate | Cold rolled steel sheet |
| Thickness | 0.5mm |
| Width | ≤1500mm or customized |
| Length | 2000mm, 2500mm, 3000mm etc. or customized |
| Alu-Zinc coating | AZ30-AZ150g/m2 |
| Material | DX51D, DX52D, S350GD, S450GD, Q235, SGCC, etc |
| Surface Treatment | coated/passivation/oiled/anti-finger print |
| Standard | GB, EN, JIS, ASTM, etc |
| MOQ | 10 tons |
| Package | Standard export package or as per your requirements |
| Quality Certificate | SGS,ISO,BV,CE,etc. |
| Delivery Time | 5-45 days |
0.5mm Galvalume Roofing Sheet Price
The price of 0.5mm galvalume roofing sheet is mainly depends on factors such as raw steel material costs, Al-Zn coating weight, spangle type, width and length specifications, order quantity, production process, surface treatment and so on. The price for 0.5mm galvalume steel ranges from 600 to 1,000 USD per ton. In addition to 0.5mm galvalume roofing sheets, Wanzhi also provides galvanized steel, color coated steel, zinc-aluminum-magnesium alloy steel, metal roof panels, corrugated sheets, aluminum products, prepainted aluminum and stainless steel, etc. For inquiries, please contact us for a free quotation!
0.5mm Galvalume Roofing Sheet Benefits
- Excellent Corrosion Resistance: 55% Al-Zn alloy coating, combining passivation corrosion resistance with sacrificial anode protection, resistant to rust, salt spray, and aging.
- Superior Thermal Insulation: High surface reflectivity effectively reflects solar heat, reducing indoor temperature and saving energy.
- Light Weight And High-strength: The 0.5mm thickness features light self-weight without increasing building load while offering high tensile strength, excellent wind resistance, and hail impact performance.
- Excellent Formability: Strong coating adhesion ensures no cracking or peeling during cutting, bending, stamping, or roll forming, suitable for complex profiled panels such as corrugated or trapezoidal shapes.
- Ideal Coating Substrate: Smooth and stable surface provides strong adhesion to PE, SMP, HDP,PVDF, ensuring uniform color and a paint film resistant to peeling and fading—highly cost-effective as a pre-painted substrate.
- Versatile Surface Options: Multiple zinc spangle choices available (such as small spangle, zero spangle), as well as fingerprint-resistant surface treatment.
- Clean and Easy Maintenance: Smooth, dense surface resists dust accumulation, water pooling, and mold, requiring minimal upkeep and ensuring a longer service life.
Applications
- Industrial buildings: Factory buildings, industrial sheds, warehouses, chemical plants, heavy equipment storage, manufacturing facilities
- Residential & civil buildings: Home/villa roofing, vehicle parking sheds, carports, domestic shelters, residential building extensions
- Coastal & high humidity areas: Buildings near saltwater,, island buildings, marine environments, with excellent anti-rust performance against salt fog.
- Corrosive environment projects: Chemical plants, fertilizer factories, workshops with dust and acid-base gas, industrial zones with chemical exposure.
- Agricultural facilities: Farm buildings, animal houses, godowns, grain storage warehouses, equipment shelters, livestock housing.
- Commercial & public buildings: Hotel & resort roofing, parking sheds, exhibition halls, stadiums, market sheds, school & college buildings, shelters, walkways, retail complexes.
- Temporary & renovation engineering: Old building roof renovation, temporary construction enclosure and color steel profiling projects.
0.5mm Galvalume Sheet Quality Control
- Incoming Substrate Inspection: We check the chemical composition and mechanical properties of the raw steel substrate by batch sampling and verifying official mill certificates.
- Galvalume Coating Process Inspection: The Al-Zn coating weight and coating adhesion are real-time monitored with an online thickness gauge and standard adhesion tests.
- Finished Product Inspection: We examine thickness tolerance, surface quality and T-bend properties via 100% visual inspection and sampling mechanical performance tests.
- Outgoing Report Service: Complete MTC will be provided for each batch, and third-party inspection reports such as SGS, BV are available upon customer request.
0.5mm Galvalume Sheet VS 0.5mm Galvanized Sheet
| Item | 0.5mm GL (Galvalume) | 0.5mm GI (Galvanized) |
| Coating | 55% Al + 43.4% Zn + 1.6% Si | 100% Pure Zinc |
| Corrosion Resistance | Excellent, 4–6 times better than GI | Ordinary corrosion resistance |
| Heat Reflection | High solar & heat reflectivity | Low heat reflection |
| High Temperature Resistance | Up to 315°C, no discoloration | Below 200°C, easy to oxidize |
| Surface Appearance | Uniform silver spangle, elegant texture | Grey zinc spangle, plain look |
| Service Life | 25+ years in normal environment | 8–12 years in normal environment |
| Maintenance Cost | Low, almost maintenance-free | High, needs regular maintenance |
| Applications | Coastal area, chemical plant, villa, long-term building | Ordinary warehouse, temporary workshop, general construction |
| Price | Slightly higher | More economical |
Galvalume Sheet Supplier -WanZhi Group
Wanzhi Group is an ISO-certified professional coated steel supplier, manufacturing and selling a full range of metal building materials, including galvalume steel, galvanized steel, color-coated steel, metal roof sheets, corrugated sheets, stainless steel products, and steel pipes.
Equipped with a sample room, laboratory, and complete production lines, Wanzhi offers a one-stop service from sample provision and design to custom manufacturing. It meets diverse project requirements through highly competitive wholesale steel prices and tailored solutions, having established long-term cooperative relationships with markets in Indonesia, Libya, Kazakhstan, Turkey, the United Arab Emirates, Chile, Colombia, Ecuador, and Brazil.
WanZhi Factory
- Production Lines: WanZhi Factory is equipped with 2 galvanizing production lines, 3 color-coated steel sheet production lines, and 1 Zn-Al-Mg alloy coating line, along with high-precision slitting, leveling, laminating, and coating equipment.
- Customization Services: We can tailor product specifications, dimensions, coating thickness, and coatings to meet customer requirements. Free samples are provided to assist with material selection. Additionally, we offer deep processing services including slitting, bending, stamping, and forming.
- Quality Assurance: A full-process inspection system (covering thickness, coating, surface quality, and mechanical properties) is implemented. Every batch of products is accompanied by material certificates, and all products fully comply with international standards such as ASTM, GB, JIS, and EN.
Package & Delivery
Standard specifications are readily available in stock for immediate shipment, and customized orders have a lead time of 5 to 45 days. We provide professional export packaging (anti-rust film + kraft paper + steel straps + wooden pallets, etc.) and coordinate global logistics to ensure products arrive at your project site intact and on schedule.
Global Cases
Wanzhi Group has supplied GI, GL, PPGI, PPGL, corrugated sheets, steel pipes and other products to 120 countries and regions worldwide.
Wanzhi Steel – Agricultural Greenhouse Project in Turkmenistan
550 tons PPGI Steel Coil to Azerbaijan
100 tons of Galvanized Coils to Saudi Arabia
144 ton Steel Wire to Spanish
Project of PPGI Roofing en Libya
100 tons of GL and PPGL in Solomon Islands
Please leave us a message with your required thickness, width, length, material grade, zinc coating mass, surface treatment and quantity to get free samples and competitive prices from Wanzhi Group!