 Origin |
Korea |
Product Introduction
AZ is 55% aluminum-zinc coated steel sheet. AZ is highly heat and corrosion resistant, combining the properties of aluminum which renders increased durability, excellent heat resistance, and formability, and those of zinc which offers high heat resistance and excellent corrosion protection. AZ is three to six times more corrosion resistant than regular zinc coated steel sheet, with a 20-year warrantee for residential use.
Composition of Coated Layers
| Composition |
Weight Ratio (%) |
Capacity Ration (%) |
| Aluminum |
55.0 |
80 |
| Zinc |
43.4 |
19 |
| Silicon |
1.6 |
1 |
Product Features
- Excellent Durability
AZ is three to six times more corrosion resistant than zinc coated steel sheet of the same thickness. AZ is backed by a 20-year warrantee for residential use.
- Heat Resistance
The portion of the aluminum in the coated layer of AZ is high at over 80%. AZ will withstand a prolonged temperature of 315 degrees Celsius without discoloration or oxidization.
- Heat Reflectivity
AZ is highly energy efficient, with superior heat reflection and low heat consumption.
- Smooth surface
AZ is available in a delicate light silver spangle, so it is appropriate for decorative use.
- Economically efficient
Available in widths of five feet (MAX 1600), AZ reduces the loss and suitable to duct and construction.
- Excellent Paintablity
Paint is highly adhesive to the coated layer of AZ steel sheet, compared to galvanized steel plates.
- Excellent Workability
The workability of AZ is similar to that of galvanized steel sheet. Its ability to suppress fine cracks on the coating layer enhances the durability of the treatment area.
Classification By Post-treatment
| Classification |
Chromate |
No Chromate (+ Oiling) |
Chromate + Oiling |
No Chromate + Organic Coating |
| APPLICATION |
Construction,
Automotive Components |
Pre-painting |
Exportation |
Roll Forming |
Product Performance
- Heat Resistance
The portion of the aluminum in the coated layer of AZ is high at over 80%, AZ will withstand a prolonged temperature of 315 degrees Celsius without discoloration or oxidization.
| Rate of oxidization from continuous heat |
| Test Adhesion |
Material Thickness (mm) |
Weight (g/m2) |
| AZ |
0.6 |
200 |
| GI |
0.6 |
350 |
- Heat Reflectivity
AZ steel sheet boasts superior heat reflection, which produces increased energy efficiency, making it an excellent material for the interior of electronic home appliances. Used as a roofing material, AZ will inhibit the rise of a building's temperature, thereby lowering the cost of air conditioning. Food storage buildings made with AZ enjoy the additional benefit of having stored grains protected from quality change.
| Comparison of heat reflectivity by product |
| PRODUCT |
AZ |
Galvanized Steel Sheet |
Pre-painted Steel Sheet |
Tile Slate |
| Silver |
Gray |
Blue |
Brown |
| Heat Reflectivity Ratio(%) |
70 - 75 |
30 - 40 |
50 - 60 |
45 - 50 |
10 - 15 |
10 - 15 |
10 - 20 |
- Economical Efficiency
The density of the coated layer of AZ steel, 3.75g/cm?is smaller than that of galvanized steel (7.14g/cm2, increasing surface area per ton and enhancing the economical efficiency.
| Comparison of coating weight and product weight between galvanized steel and AZ. |
| THICKNESS(mm) |
Area per Ton (m2 / ton) |
| AZ |
GI |
| 0.40 |
AZ 150 |
391 |
Z 18 |
385 |
| 0.45 |
339 |
328 |
| 0.50 |
299 |
290 |
| 0.60 |
243 |
Z 22 |
236 |
| 0.80 |
204 |
199 |
| 1.00 |
124 |
123 |
| 1.20 |
104 |
Z 27 |
102 |
| 1.60 |
78 |
77 |
| 2.0 |
63 |
62 |
| * theoretical calculation depends on size |
- Paintability
Paint is highly adhesive to coated layer of AZ steel sheet, compared to galvanized steel plates. AZ used for general purposes does not require pretreatment before painting.
- Weldability
The weldability of AZ is similar to that of galvanized steel sheet. Special attention required before welding includes the welding current, time, and electrode pressure.
Thickness
(mm) |
Electric Current
(A) |
Pressure
(Kg) |
Welding Time, Cycle
(1/60 sec) |
Electrode Diameter
(mm) |
| 0.56 |
11000 |
160 |
10 |
4.75 |
| 0.71 |
11300 |
180 |
12 |
4.75 |
| 0.91 |
12500 |
230 |
14 |
6.35 |
| 1.02 |
12800 |
230 |
14 |
6.35 |
| 1.35 |
13000 |
250 |
14 |
6.35 |
| 1.65 |
13400 |
300 |
18 |
6.35 |
Thickness
(mm) |
Electrode Shape
(mm) |
Thickness of Electrode
(mm) |
Pressure
(Kg) |
Electric Current
(A) |
Welding Time (cycle=1/60sec) |
Welding Speed
(mm/min) |
| Heating |
Cooling |
| 0.43 |
12.70 Radius |
9.53 |
320 |
14500 |
2 |
2 |
1500 |
| 0.56 |
17.70 Radius |
9.53 |
390 |
16000 |
3 |
2 |
1500 |
| 0.86 |
6.35 Radius |
12.7 |
450 |
21500 |
4 |
2 |
1500 |
| 1.24 |
6.35 Flat |
12.7 |
500 |
22000 |
4 |
2 |
1500 |
| 1.24 |
6.35 Flat |
12.7 |
500 |
23000 |
4 |
1 |
2300 |
| 2.11 |
7.94 Flat |
15.88 |
730 |
27000 |
10 |
6 |
760 |
- Corrosion Resistance
AZ is three to six times more corrosion resistant than regular zinc coated steel sheet.
| AZ (150 g/m2) |
GI (275 g/m2) |
Al-Coated (150 g/m2) |
AZ (300 g/m2) |
 |
 |
 |
 |
Applications
- Construction
Roofing material, side-wall material, partition, soundproof wall, duct, shutter, garage door, fencing, corrugated steel pipe, lightweight steel
- Automotive components
Muffler, Exhaust Silence Boxes, Exhaust Pipe(Tail Pipe), Oil filter tube, Bus floor, Truck bottom, Air cleaner Cover, Hose Clamp, Brake Pad Cover
- Electrical (home) appliances
Vending machine, Gas boiler, Gas oven, Toaster, Air conditioner/heater, Washer, Light shade
- Agricultural
Greenhouse pipe, Silo, Tobacco leaf dryer, Graindryer, Agriculture equipment, machine parts, Greenhouse panel
- Industrial
Industrial Equipment, Heat insulator cover, Water heater, Heat exchanger, Dryer, Waste incinerator, Container
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