Products Description
DX53D+AZ Galvalume steel coil is an ultra-deep drawing grade Al-Zn alloy coated steel(55%Al, 43.5%Zn, 1.5%Si)per EN 10346, produced by continuous hot-dip coating on DX53D low-carbon substrate. As a top Galvalume steel coil supplier, GNEE STEEL supplies AZ150, AZ180, AZ200 options, delivering excellent formability + superior corrosion resistance for automotive, appliances, construction, HVAC and deep-drawing critical parts.
Galvalume coil is a kind of aluminum-plated zinc alloy treatment method to form a coil with high strength, excellent corrosion resistance and beautiful appearance on the surface of steel, with high corrosion resistance and air pollution resistance. Galvalume coil also has good surface decoration, and can be processed into a variety of beautiful building and home appliance materials.
Product Parameters
|
Product Name |
DX53D+AZ Galvalume Steel Coil |
|
Thickness |
0.12mm-3.00mm |
|
Width |
600mm-1500mm |
|
Standard |
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% |
Chemical Composition
|
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 |
Mechanical Properties
|
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 |
- |
|
Use of The Environment |
Recommended Zinc Thickness |
|
Indoor Use |
AZ30 or AZ185 (30g/㎡or 185g/㎡) |
|
Suburbs |
AZ30 and Painting (30g/㎡) |
|
Urban or Industrial Area |
AZ185 (185g/㎡) |
|
Coastal Area |
Thicker than AZ185 (185g/㎡) |
|
Punch or Deep Drawing Application |
Thicker than AZ185 (185grams/㎡) |
|
Surface Treatment Type |
Code |
Features |
|
Chromic Acid Treatment |
C |
Good corrosion resistance, suitable for bare state |
|
Chromic Acid Treatment+Oiling |
S |
Good corrosion resistance |
|
Phosphoric Acid Treatment (Including Sealing Treatment) |
P |
Have a certain corrosion resistance, good paint performance |
|
Phosphoric Acid Treatment (Including Sealing Treatment)+Oiling |
Q |
Has a certain corrosion resistance, good paint performance, prevent rust during transportation and storage |
|
Phosphoric Acid Treatment (Excluding Sealing Treatment) |
T |
Have a certain corrosion resistance, good paint performance |
|
Phosphoric Acid Treatment (Excluding Sealing Treatment)+Oiling |
V |
Has a certain corrosion resistance, good paint performance, and prevent rust |
|
Oiling |
O |
Prevent rust during transportation and storage |
|
No Treatment |
M |
Suitable for immediate painting |
Material Comparison
| 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 |
Packaging and Shipping
FAQ
1. What is Galvalume Steel Coil, and how is it manufactured?
Answer: Galvalume is a cold-rolled steel substrate coated with an alloy consisting of 55% Aluminum, 43.4% Zinc, and 1.6% Silicon. It is produced via a continuous hot-dip process, combining the barrier protection of aluminum with the sacrificial protection of zinc.
2. How does Galvalume Steel differ from Galvanized Steel?
Answer: While Galvanized steel uses a 100% Zinc coating, Galvalume uses an Aluminum-Zinc alloy. This composition makes Galvalume significantly more resistant to corrosion, often lasting 3 to 6 times longer than traditional galvanized products in similar environments.
3. What is the lifespan of a Galvalume Steel roof?
Answer: In non-extreme environments, a Galvalume Steel roof can easily last 40 to 60 years. Its high aluminum content prevents the spread of rust, maintaining structural integrity much longer than other metal options.
4. What does the "AZ" coating designation mean (e.g., AZ50, AZ150)?
Answer: "AZ" stands for Aluminum-Zinc. The number represents the weight of the coating. For example, AZ50 (0.50 oz/sqft) is common in the US, while AZ150 (150 g/m²) is a standard international metric. Heavier coatings provide superior longevity in harsh climates.
5. Is Galvalume Steel energy efficient?
Answer: Yes. Galvalume has high solar reflectivity. It reflects a significant amount of heat away from buildings, which can reduce air conditioning costs by up to 25% in hot climates.
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