55%Al-Zn Coated Steel

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.
 
Spot Welding Conditions
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
 
  • Country:Russian Federation
  • telephone:7495-782-9019
AZ is 55% aluminum-zinc coated steel sheet. AZ is highly heat and corrosion resistant, combining the properties of aluminum
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