When sourcing high-performance galvalume AZ150 coil for metal roofing, manufacturers and contractors demand durability, corrosion resistance, and cost efficiency. This guide details why AZ150 galvalume coil is the preferred choice for roofing applications, how it compares to lower coating weights, and why ChinaCNU Steel delivers unmatched quality. Our galvalume AZ150 coil for metal roofing is produced in our Qingdao factory with ISO certification, backed by 15+ years of export experience to 80+ countries. With a minimum order quantity of 25 tons and competitive FOB pricing, we supply aluzinc steel coil that meets global standards.
The term aluzinc steel coil refers to a steel substrate coated with an aluminum-zinc alloy (55% Al, 43.4% Zn, 1.6% Si). The AZ150 designation indicates a coating weight of 150 g/m² (both sides combined), providing superior protection against rust and atmospheric corrosion. This AZ150 galvalume grade is ideal for metal roofing coil exposed to rain, UV, and temperature fluctuations. As a reliable galvalume supplier China, we ensure every coil meets ASTM A792M, JIS G3321, or EN 10169 standards.
Our metal roofing coil is available in thicknesses from 0.3 mm to 1.2 mm and widths up to 1250 mm. The coating offers excellent formability, allowing for corrugated roofing profiles without cracking. Whether you need roofing sheet steel coil for industrial buildings or residential projects, AZ150 delivers a service life of 20+ years in moderate environments. Below, we break down technical specifications, price comparisons, and common buyer questions.
Why Choose AZ150 Galvalume Coil for Metal Roofing?
AZ150 is the sweet spot between cost and longevity. Compared to AZ100 (100 g/m²), AZ150 offers 50% more corrosion protection, while AZ200 adds marginal benefit for most roofing applications. The galvalume AZ150 coil for metal roofing withstands cut-edge corrosion better than galvanized steel due to the aluminum-rich barrier. In coastal or industrial areas, this aluzinc steel coil outperforms traditional GI coils by 2–3 times.
Galvalume Az150 Coil For Metal Roofing Price Trend (USD/Ton) – Last 12 Months
Data: ChinaCNU Steel Market Research | FOB Tianjin Reference Price
Key advantages include:
- Heat reflectivity: The aluminum content reflects up to 80% of solar radiation, reducing building cooling costs.
- Formability: Can be roll-formed into trapezoidal, standing seam, or corrugated profiles without coating damage.
- Paint adhesion: When used as a base for color-coated sheets, AZ150 provides excellent primer bonding.
As a galvalume supplier China, we stock both bare and pre-painted options. Our AZ150 galvalume coils are tested for T-bend, impact resistance, and salt spray (ASTM B117) exceeding 1,000 hours. For corrugated roofing projects, we recommend thickness 0.4–0.6 mm with AZ150 coating for optimal stiffness.
Technical Specifications & Data Comparison
Below is a comparison of common galvalume coating weights used in metal roofing. This table helps buyers select the correct roofing sheet steel coil grade for their environment.
| Property | AZ50 | AZ100 | AZ150 | AZ200 |
|---|---|---|---|---|
| Coating Weight (g/m²) | 50 | 100 | 150 | 200 |
| Coating Thickness (µm) | ~7 | ~14 | ~21 | ~28 |
| Salt Spray Resistance (hours) | 300 | 600 | 1,000+ | 1,200+ |
| Recommended Use | Interior, dry areas | Rural roofing, fences | Industrial roofing, coastal | Severe marine, chemical |
| FOB Price (per ton, USD) | $780–$850 | $890–$960 | $1,020–$1,100 | $1,180–$1,280 |
Data based on current market rates from ChinaCNU Steel. Prices are indicative for MOQ 25 tons, FOB Tianjin. Galvalume AZ150 coil for metal roofing offers the best value for most commercial and residential applications. Our aluzinc steel coil is supplied with mill test certificates (MTC) and third-party inspection options.
Production Process & Quality Control
Hot-Dip Coating Line
Our metal roofing coil is produced on a continuous hot-dip galvalume line. Cold-rolled steel strip passes through a zinc-aluminum bath at 600°C. The coating weight is precisely controlled via air knives. After cooling, the AZ150 galvalume surface is treated with anti-fingerprint or chromate passivation for extended shelf life.
Inspection & Certification
Every coil undergoes thickness gauge, coating weight (XRF), and mechanical testing. Our ISO 9001:2015 certification ensures traceability from raw material to final export. For corrugated roofing buyers, we can provide samples for trial runs before bulk order.
With 15+ years in the steel industry, we have refined our logistics to minimize lead times. Standard galvalume supplier China lead time is 15–20 days after deposit. FOB Tianjin pricing includes seaworthy packing (wrapped with waterproof paper, steel skids).
Applications & Profiles for Roofing Sheet Steel Coil
Galvalume AZ150 coil for metal roofing is used in various profile types:
- Corrugated sheets: YX25-210-840, YX35-125-750, and classic 7.5 corrugation.
- Trapezoidal profiles: For industrial warehouses and agricultural buildings.
- Standing seam: For modern architectural roofing with concealed fasteners.
- Insulated panels: As the outer skin for PIR/PU sandwich panels.
Our roofing sheet steel coil is compatible with all standard roll-forming machines. We supply coils in slit widths from 600 mm to 1250 mm. For corrugated roofing projects, we recommend ordering 3–5% extra for overlap and waste.
Why ChinaCNU Steel Stands Out
As a trusted galvalume supplier China, we differentiate through:
- ISO certified production with batch traceability.
- 15+ years export to 80+ countries including USA, UAE, Kenya, and Chile.
- MOQ 25 tons – flexible for both small contractors and large distributors.
- FOB Tianjin pricing with no hidden fees.
- In-house testing for coating weight, mechanical properties, and surface quality.
Our aluzinc steel coil is used by leading roofing manufacturers worldwide. We offer both standard and custom sizes. For metal roofing coil projects requiring anti-fingerprint or pre-painted finish, we provide PVDF and polyester coating options.
Frequently Asked Questions (FAQ)
- What is the difference between AZ150 and AZ100 for roofing?
AZ150 has 50% more coating weight (150 g/m² vs 100 g/m²), offering better corrosion resistance. For coastal or high-humidity areas, AZ150 is recommended. For dry inland regions, AZ100 may suffice at lower cost. - Can I use galvalume AZ150 coil for corrugated roofing directly?
Yes. AZ150 can be roll-formed into corrugated profiles without coating damage. Ensure your roll former has proper guides to avoid scratching the surface. - What is the MOQ for galvalume AZ150 coil from ChinaCNU Steel?
Our standard MOQ is 25 tons per size. We can combine different widths or thicknesses in one container to meet the minimum. Contact us for smaller trial orders. - How is the coil packed for export?
Coils are wrapped with waterproof paper, VCI film, and steel skids. Sea-worthy packing ensures no damage during transit. FOB Tianjin loading is included. - Do you provide third-party inspection?
Yes. We accept SGS, BV, or Intertek inspection at buyer’s cost. Our ISO certification and MTC are provided free with every shipment.
Ready to order galvalume AZ150 coil for metal roofing? Contact ChinaCNU Steel today for FOB Tianjin pricing, sample requests, or technical datasheets. Our team responds within 4 hours.
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