Galvalume Steel Corrugated Roof Sheet
Galvalume steel sheet, also known as alu-zinc alloy steel sheet, are made from cold-rolled or hot-rolled substrates that are galvanized with aluminum alloy. Yeson Steel provides aluminum-zinc-coated steel panels and raw materials in all shapes and sizes ranging from AZ20 to AZ350 g to a wide range of customers in various fields.
Galvalume Steel Corrugated Roof Sheet – Product Overview
Galvalume steel corrugated roof sheets are available in a variety of profiles including wavy, trapezoidal, and ribbed designs. Suitable for use as single-layer roofing, overlay on existing roofs, or as part of steel sandwich panels, these sheets offer a cost-effective alternative to traditional roofing materials.
Lightweight and easy to install, they significantly reduce labor time and costs. Their durability, low maintenance requirements, and recyclability further enhance their economic advantage. The sheets feature a smooth, bright surface with an aesthetically pleasing corrugated design. Excellent paint adhesion allows for custom color coatings, providing both visual appeal and design flexibility.
Principais características:
✅ Superior Corrosion Resistance
The aluminum component in the Galvalume coating forms a dense, self-protecting oxide layer when exposed, delaying further corrosion. This results in up to 3x better corrosion resistance than standard galvanized steel, extending service life by 2–6 times under comparable conditions.
✅ High Thermal Reflectivity
With a reflectivity coefficient twice that of conventional galvanized roofing, our sheets help reduce indoor temperatures in summer, cutting cooling costs and improving energy efficiency—ideal for warm climates.
✅ High-Temperature Resistance
Capable of withstanding temperatures over 300°C, Galvalume sheets maintain structural integrity and performance under prolonged heat exposure.
✅ Smooth & Uniform Finish
The surface is consistently smooth with an attractive silvery-spangled appearance, ready to use without additional treatment—perfect for both residential and commercial applications.
✅ Excellent Formability & Paint Adhesion
The substrate offers outstanding formability for easy cutting, punching, and shaping. It also ensures strong paint adhesion, allowing for durable and vibrant painted finishes.
Product Name | Galvalume Steel Sheet |
Grossura | 0.12mm-6.00mm |
Largura | 600mm-1500mm |
Comprimento | 1m-12m, Support Customization |
Padrão | AISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc. |
Thickness of Aluminum Zinc Coating | 30-185g/m² |
Content of Al-Zn Coating | Al: 55%, Zn: 43.5%, Si: 1.5% |
Al | Zn | Si | Fe | Cu | Cd | Pb | Sn | Ni | Close Cr |
55-58 | 41-43 | 1.5-2 | 0.25 | 0.03 | 0.05 | 0.01 | 0.05 | 0.05 | 0.05 |
Nota | Yield Strength MPa≥ | Tensile Strength MPa≥ | Elongation A%≥ |
DX51D Z/ZM/AZ/AM | 240-380 | 270-500 | 22 |
DX52D Z/ZM/AZ/AM | 140-300 | 270-420 | 26 |
DX53D Z/ZM/AZ/AM | 140-260 | 270-380 | 30 |
DX54D Z/ZM/AZ/AM | 120-220 | 260-350 | 36 |
S220GD Z/ZM/AM | 220 | 300 | 20 |
S250GD Z/ZM/AZ/AM | 250 | 330 | 19 |
S280GD Z/ZM/AM | 280 | 360 | 18 |
S300GD A/AM | 300 | 380 | 18 |
S320GD Z/ZM/AM | 320 | 390 | 17 |
S350GD Z/ZM/AZ/AM | 350 | 420 | 16 |
S450GD A/AM | 450 | 480 | 15 |
S550GD Z/ZM/AZ/AM | 550 | 550 | - |
Chinese Standard | European Standards | American Standard | Japanese Standard |
DC51D+AZ | DX51D+AZ | CS Type B, Type C | SGLCC |
DC52D+AZ | DX52D+AZ | DS | SGLCD |
S250GD+AZ | S250GD+AZ | 255 | - |
S300GD+AZ | - | - | - |
S350GD+AZ | S350GD+AZ | 345 | Class1 SGLC490 |
S550GD+AZ | S550GD+AZ | 550 | SGLC570 |
Type of Coating | Recommended Coating Weight |
Aluminum-zinc Alloy | 30/40/50/60/75/90/100/150 |
A: Coating quality50g/㎡,approximately equal to the coating thickness13.3pm | |
Project | Classification | Symbol |
Type of Coating | Aluminum-zinc Alloy | AZ |
Acabamento de superfície | Conventional Sequins | R |
Minimize Sequins | M | |
Skin Through | S | |
Tratamento de superfície | Chromate Passivation | c |
Non-chromate Passivation | C5 | |
Chromate Passivationoiling | CO | |
Chromium-free Passivationoiling | CO5 | |
Anti-fingerprint | N | |
Chromate-free/Anti-fingerprint | N5 | |
No chromate high weather resistance fingerprint | NW | |
Oil filling | 0 | |
No treatment | U |
Types of Galvanized Surface
Aluzinc composition
● Cold rolled steel coil
● Aluzinc paiting layer
● Anti fingerprinting, chromate, OIled,non-oiled
Packing and delivery
We can provide,wooden pallet packaging,Wooden packing,Steel strapping packaging,Plastic packaging and other packaging methods.We are willing to package and ship products according to the weight, specifications, materials, economic costs and customer requirements.We can provide container or bulk transportation, road, rail or inland waterway and other land transportation methods for export. Of course, if there are special requirements, we can also use air transportation
Why Choose Our?
Yeson Steel Aluminum Zinc Coating Production Line: from substrate cleaning, coating, cooling, and curing to final roll rolling and cutting, with a strict production management system, which has been certified by ISO, SGS, and others. In addition, we also provide in-depth processing such as slitting, slitting, bending, punching, and molding.
Surface treatment: We have a wide range of surface treatments to choose from, such as lamination, passivation, phosphating, fingerprint resistance, painting, and so on.
Perguntas frequentes
A: Usually are containers or bulk, according to your require
A: yes, a third-party test is accepted. We also can send free samples to your laboratory test.
A: Yes, welcome you come to our factory to have a visit. We will arrange a team to accompany you according to your plan.
A: We have 15 years'' production experience.Six product lines, two hot-dipped galvanized steel lines, 2galvalume steel lines, two-color coated steel lines, output 9,00, 000MT/YEAR. Keep good quality and competitive prices.
A: Free sample can send for your reference before confirming an order.
All test videos and pictures will send for your reference when produced.