Aluzinc roofing corrugated sheet
Glavalume steel consists of 55% aluminum, 43.4% zinc and 1.6% silicon treated with the hot galvanizing technology under the high temperature of 600 ℃. we can produce colored anti-fingerprint GL, colorless transparent anti-fingerprint GL, chromium-free passivated anti-fingerprint GL,etc. Anti-fingerprint treatment on its surface not only enhances the anti-corrosion ability, but also increases the aesthetic value of the plate.
Application: Prengineered steel buildings, industrial and commercial roofing and cladding,agricultural buildings, building accessories, light
steel framing, Quonset huts, construction tubular, appliance,
and automotive.
Thickness: 0.12mm-0.8mm
Length:1m-11.8m
Hardness: 60HRB to 90HRB
Zinc coating: 40g/m2 to 275g/m2
Special use:High strength steel plate
Weight Varies By Profile
We introduces the advanced testing equipments and builds up a professional scientific research team, strictly control the quality on each steps of production. including inspection on raw materials entry, product’s color analysis during production,T-bend test, impact test, salt-spray test, tensile test and packaging testing on exported products , which ensures its integrated performance such as corrosion resistance, coating stickiness etc and the safety of transportation.
The sheets is packed with PVC film or water-proof kraft in the first layer, the second layer is iron sheet package, then wrapped on the metal pallet or metal square tube with steel strip.
It’s water-proof and sea-worthy, and warmly welcomed by the customers.OEM accepted, besides, the pakage can also be according to your demands.
Commercial
Industrial
Galvalume Roofing Sheet is manufactured from high-quality Galvalume steel coils coated with 55% aluminum, 43.4% zinc, and 1.6% silicon. This advanced coating combines the long-term barrier protection of aluminum with the sacrificial protection of zinc, providing outstanding corrosion resistance and durability.
Compared with conventional galvanized roofing sheets, Galvalume Roofing Sheets can offer two to six times better corrosion resistance and significantly longer service life.
Due to their excellent weather resistance, thermal reflectivity, and structural strength, Galvalume Roofing Sheets are widely used in industrial factories, logistics warehouses, commercial buildings, agricultural facilities, steel structure projects, and residential roofing systems.
SINO GROUP supplies a complete range of Galvalume Roofing Sheets with customized profiles, thicknesses, lengths, and coating weights to meet global project requirements.
| Item | Specification |
|---|---|
| Material | Galvalume Steel |
| Thickness | 0.12mm – 0.80mm |
| Width Before Corrugation | 600mm – 1250mm |
| Effective Width | 600mm – 1050mm |
| Length | Customized |
| Al-Zinc Coating Weight | AZ30 – AZ275 |
| Steel Grade | DX51D, DX52D, G300, G350, G550 |
| Yield Strength | 240MPa – 550MPa |
| Tensile Strength | 270MPa – 700MPa |
| Surface Treatment | Chromated, Anti-Fingerprint (AFP), Oiled |
| Surface Finish | Regular Spangle / Minimized Spangle |
| Thickness Tolerance | ±0.02mm |
| Width Tolerance | ±2mm |
| Applicable Standards | ASTM A792, JIS G3321, EN10346 |
| Salt Spray Resistance | 500 – 1500 Hours |
| Fire Rating | Class A |
| Service Life | 20 – 40 Years |
| Application | Industrial, Commercial, Agricultural & Residential Roofing |
The steel grade directly determines the load-bearing capacity, wind resistance, and long-term performance of roofing sheets.
For industrial buildings, logistics centers, and large-span steel structures, selecting the correct steel grade is essential to ensure structural safety and reduce maintenance costs.
Higher-strength steel can achieve the same structural performance with thinner material, reducing total project costs.
| Grade | Yield Strength | Typical Applications |
|---|---|---|
| DX51D | ≥240 MPa | Residential & Agricultural Buildings |
| DX52D | ≥260 MPa | Commercial Buildings |
| G300 | ≥300 MPa | Warehouses |
| G350 | ≥350 MPa | Industrial Projects |
| G550 | ≥550 MPa | Steel Structures & High Wind Areas |
The most common and economical steel grade, featuring excellent machinability and cost-effectiveness, suitable for residential, warehousing, and agricultural buildings.
One of the most widely used grades in industrial construction, balancing both cost and structural strength.
High-strength steel grades, particularly suitable for large-span structures, regions subject to high wind pressure, and steel structure projects.
AZ refers to the total aluminum-zinc coating weight applied to both sides of the steel sheet.
The higher the coating weight, the stronger the corrosion resistance and the longer the service life.
| Coating | Weight | Application |
|---|---|---|
| AZ30 | 30 g/m² | Temporary Buildings |
| AZ50 | 50 g/m² | Economic Projects |
| AZ70 | 70 g/m² | Residential Roofing |
| AZ100 | 100 g/m² | Commercial Buildings |
| AZ150 | 150 g/m² | Industrial Buildings |
| AZ200 | 200 g/m² | Coastal Projects |
| AZ275 | 275 g/m² | Extreme Corrosion Areas |
| Coating | Rural Area | Urban Area | Coastal Area |
|---|---|---|---|
| AZ50 | 10-15 Years | 8-12 Years | 5-8 Years |
| AZ100 | 20-25 Years | 15-20 Years | 10-15 Years |
| AZ150 | 30-40 Years | 25-30 Years | 15-25 Years |
| AZ275 | 40+ Years | 30+ Years | 25+ Years |
| Region | Recommended Coating |
|---|---|
| Africa | AZ50-AZ100 |
| Southeast Asia | AZ70-AZ150 |
| Middle East | AZ100-AZ150 |
| South America | AZ100-AZ150 |
| Australia | AZ150-AZ200 |
| Coastal Regions | AZ150-AZ275 |
AZ150 strikes an optimal balance between price and durability.
Compared to AZ100, it offers a 30% to 50% increase in service life with only a marginal increase in cost, making it the most widely adopted specification globally for industrial plants, logistics and warehousing centers, and commercial building projects.
The 55% aluminum-zinc alloy coating provides significantly better corrosion protection than traditional galvanized steel.
The aluminum component forms a protective barrier that prevents moisture and oxygen from reaching the steel substrate, while the zinc component offers sacrificial protection at cut edges and scratches.
As a result, Galvalume Roofing Sheets typically provide two to six times the corrosion resistance of conventional galvanized roofing sheets.
This makes them especially suitable for:
Galvalume Roofing Sheets reflect a significantly higher percentage of solar radiation compared with conventional roofing materials.
This reflective property helps reduce roof surface temperatures and lowers indoor cooling loads, contributing to improved energy efficiency.
In hot climates such as the Middle East, Africa, Southeast Asia, and South America, this advantage can help reduce energy consumption and improve indoor comfort.
Depending on the plating specifications and operating environment, the product’s service life can extend to over 20 to 40 years.
Compared to standard galvanized roofing sheets, it significantly reduces the frequency of maintenance and replacement.
Manufactured using G300, G350, and G550 high-strength steel.
Advantages include:
Particularly important for steel-structure industrial plant projects.
Although the initial procurement cost of aluminum-zinc coated roofing sheets is slightly higher than that of standard galvanized tiles, their longer service life and lower maintenance costs result in a lower overall lifecycle cost.
For long-term operational projects, this translates into a higher return on investment.
| Feature | Galvalume | Galvanized |
|---|---|---|
| Coating Composition | 55% Al-Zn | Zinc |
| Corrosion Resistance | Excellent | Good |
| Heat Reflectivity | High | Medium |
| Service Life | 20-40 Years | 10-20 Years |
| Maintenance Cost | Lower | Higher |
| Coastal Performance | Excellent | Fair |
Galvalume Roofing Sheets are widely used for manufacturing plants, production facilities, and industrial workshops.
Their high strength and corrosion resistance make them ideal for demanding industrial environments.
Large-scale warehouses typically require:
The G550 AZ150 specification has become the mainstream choice for logistics and warehousing projects.
Including:
Capable of effectively withstanding moisture and corrosive gases.
Widely used in:
Balancing durability with aesthetics.
Suitable for:
Offers the advantages of lightweight construction and long service life.
Particularly suitable for:
SINO GROUP operates modern Galvalume roofing sheet production facilities equipped with advanced roll-forming and profiling systems.
300,000+ Tons
25,000+ Tons
800+ Tons
Capable of meeting the requirements for:
Support:
All steel coils are sourced from high-quality steel mills.
Inspection Items:
Utilizing a standardized production process:
Ensuring precise and consistent product dimensions.
Each batch of products undergoes:
Thickness Measurement
Width Inspection
Coating Weight Test
Salt Spray Test
Tensile Strength Test
T-Bend Test
The product complies with:
Each shipment features:
Ensuring safe transit during sea freight.
24-28 Tons
25-28 Tons
25-28 Tons
Support:
Ships to:
AZ150 provides approximately 30%-50% longer service life than AZ100, making it more suitable for industrial and coastal projects.
Yes. G550 offers superior strength and is widely used in steel structure buildings and high-wind areas.
Usually one 20GP container, but mixed specifications are available.
Yes. OEM and customized production services are available.
AZ150, AZ200, and AZ275 are recommended for coastal environments.
We are committed to fostering enduring partnerships with our clients. Recognizing the unique needs of each customer, we offer customized solutions tailored to their specific requirements. With a focus on flexibility in order processing and punctual delivery, we are dedicated to ensuring customer satisfaction and establishing long-term collaborations built on trust and reliability.
Thank you for your interest in our factory. Should you have any inquiries or require further information regarding our roofing sheets or related services, please feel free to reach out to us. We eagerly anticipate the opportunity to collaborate with you and contribute to your success.
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