Galvalume Steel Sheet
Galvalume steel sheet is a type of steel that is coated with zinc for protection by an electroplating process. The galvanized layer is applied to cold rolled steel at low temperatures. So it is also known as cold galvanized steel.
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- Commodity name: Galvalume Steel Sheet
Galvalume steel sheet is a type of steel that is coated with zinc for protection by an electroplating process. The galvanized layer is applied to cold rolled steel at low temperatures. So it is also known as cold galvanized steel.
Galvalume Steel Sheet Description
Through electrolytic galvanizing, a uniform and dense zinc layer is finally formed on the surface of the steel, but the mechanical properties of the material are still maintained. Electrogalvanized steel is usually sold in coil or sheet form. EG coil is a kind of material that can be cut, slitted and profiled for other purposes. The steel grade of galvanized steel consists of base metal grade, galvanized (E), galvanized layer type and weight. The electro-galvanized products based on SPCC, SPCD, SPCE, SPCF and SPCG are named SECC, SECD, SECE, SECF and SECG respectively.
The production process of aluminum zinc plating is as follows:
Uncoiling-cleaning-annealing-zinc pot-cooling-air knife-straightening-post-treatment-coiling
Heat Reflection
People use it as a thermal insulation material, and its thermal reflectivity is up to twice that of galvanized steel.
Heat Resistance
Galvanized steel coil has good heat resistance and can withstand high temperatures above 300°C, which is very similar to the oxidation resistance of aluminized steel at high temperatures. Commonly used in chimney tubes, ovens, illuminators, fluorescent lampshades, etc.
Corrosion Resistance
The key to the corrosion resistance of aluminized zinc steel coil is the protective performance of aluminum. Once the zinc is worn, the aluminum forms a dense layer of aluminum oxide, preventing further internal corrosion.
Economy
The density of 55% AL-Zn is smaller than that of Zn. Therefore, when the coating weight and thickness are the same, the area of the aluminum-zinc plated steel sheet is 3% larger than that of the galvanized steel sheet.
Easy to Paint
The coating material on the aluminized zinc steel plate has excellent adhesion, and can be directly coated with tar on advertising boards and common plates without pretreatment such as weathering.
Scope of ApplicationConstruction industry: such as roof, internal and external wall panels, sound insulation walls, pipes, garages, etc.
Automotive industry: such as mufflers, exhaust pipes, wiper accessories, fuel tanks, truck containers, etc.
Household appliances: such as refrigerator backplane, air conditioner, microwave oven, LED backlight, electric cabinet, etc
Agricultural use: such as greenhouse, granary, pig farm, chicken coop, etc
Other industries: such as heat exchangers, dryers, etc.Product Parameters
Product Name
Galvalume Steel Sheet
Thickness
0.12mm-6.00mm
Width
600mm-1500mm
Length
1m-12m, Support Customization
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
-
Galvanized Surface Selection
Zero Spangle
Minimized Spangle
Normal Spangle
Large Spangle
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
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
SGLC570
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Galvalume Steel Sheet - Stock Warehouse
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Galvalume Steel Sheet - Product Inspection
Tensile Strength Testing Tensile Strength Testing Physical Performance Testing Chemical Composition Testing 
Inspection Hardness Testing Spectral Detection Mechanical Properties -
Galvalume Steel Sheet - Product Measurement
Thickness Measurement Width Measurement Measurement Measurement -
Galvalume Steel Sheet - Product Packaging
Baowu Special steel
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