Galvalume Steel Coil
Professional Manufacturer Of Galvalume Steel Coil
Galvanized steel coil has full specifications and sizes, with good anti-corrosion performance and processability, and is widely used in the fields of construction, decoration, home appliance manufacturing, etc. In addition, it is also the raw material of galvanized steel sheets, galvanized roof sheets/panels, prepainted steel coil sheets, which can be deeply processed by cutting, forming, painting, etc.
Corrosion resistance
Aluzinc steel coil has strong corrosion resistance, and its normal service life can reach 25 years, which is 3-6 times longer than galvanized plate and is comparable to stainless steel.
Heat resistance
Aluzinc steel sheet has a high degree of heat reflectivity and is suitable as a roofing material. Al-zinc alloy steel plate itself also has excellent heat resistance and can be used in high-temperature environments up to 315 degrees.
Excellent recoatability
(paint film adhesion) The galvanized sheet can maintain good adhesion to the paint film and can be directly sprayed or powdered without special pre-treatment.
Good processability
(shearing, stamping, spot welding, seam welding) galvalume steel sheet has excellent processing properties and can be punched, sheared, welded, etc. The coating has good adhesion and impact resistance
| Product Name | Galvalume Steel Coil |
| Thickness | 0.12mm-6.00mm |
| Width | 20mm-1500mm |
| Length | 1m-12m, Support Customization |
| Standard | AISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc. |
| Thickness of Aluminum Zinc Coating | 15-275g/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 |
Grade | 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 | - |
| 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 |
| Surface Finish | Conventional Sequins | R |
| Minimize Sequins | M | |
| Skin Through | S | |
| Surface Treatment | 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 |
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 |
What is galvalume steel coil?
Galvalume steel coil is composed of 55% aluminum, 43.4% zinc, and 1.6% silicon.
The surface of the galvalume steel coil has a unique smooth, flat and gorgeous star flower, and the base color is silver-white. The special coating structure gives it excellent corrosion resistance. The normal service life of galvalume sheet can reach 25 years. It has good heat resistance and can be used in high-temperature environments of 315°C. The coating has good adhesion to the paint film and has good processing performance, and can be stamped, sheared, welded, etc.; Surface conductivity is very good.
What Is The Difference Between Galvanized And Aluzinc?
1. Coating: Galvanized sheets are mainly zinc sheets on the coating. The surface coating of the aluzinc steel coil is composed of 55% aluminum, 43.4% zinc, and 1.6% silicon.
2. The trace elements in the surface coating of galvanized sheets and galvalume-zinc sheets determine their different spangles. The spangles on the surface of galvanized sheets are large spangles or zero spangles, while the spangles on the surface of aluzinc are small spangles.
3. The anti-corrosion performance of galvalume steel coil is better. The self-corrosion and barrier effects of the aluminum-zinc alloy layer are stronger, which can protect steel in harsher environments and extend the service life. The normal service life of galvalume sheets is that of ordinary galvanized sheets. 2-6 times.
The difference between Anti-finger and passivation
Why Choose Our Galvalume Steel Coil?
We have the ability to supply AZ165 galvalume to meet customers’ requirements for use in highly corrosive areas. We ensure that the weight of the metallic coating does not cut corners, and we have the equipment to detect it.
Innovative Coating Technology
Galvalume Steel Coils feature a unique coating of aluminum-zinc alloy, combining the best properties of both metals. This innovative coating not only enhances the coil’s durability but also provides superior heat reflectivity, making it an ideal solution for energy-efficient buildings.
