Prepainted Galvanized Steel Sheet
When steel components are used to make more complex finished products, they can be galvanized before the product is assembled. This is called pre-galvanizing, or "pre-galvanizing". It may also be referred to as "in-line", "continuous" or "rolled" galvanizing.
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- Commodity name: Prepainted Galvanized Steel Sheet
When steel components are used to make more complex finished products, they can be galvanized before the product is assembled. This is called pre-galvanizing, or "pre-galvanizing". It may also be referred to as "in-line", "continuous" or "rolled" galvanizing.
Prepainted Galvanized Steel Sheet Description
Steel components (such as sheets or wires) are galvanized using an automated process before they are cut to size. This automated process will vary depending on the type of galvanized part. In general, steel components are immersed in a "galvanizing bath" of molten zinc for a short period of time. After the steel is removed from the bath, excess zinc is removed using a mechanical wiper, air knife, or steam. This leaves a relatively thin layer of galvanizing.
Scope of ApplicationBuilding Materials Field
Electrogalvanizing has a wide range of applications in the field of building materials. First of all, electro-galvanizing can be used to manufacture construction steel, which not only prevents metal oxidation and prolongs its service life, but also enhances the toughness, strength and corrosion resistance of steel, and improves the performance of steel. Secondly, in the decoration of building exterior walls, electro-galvanized aluminum alloy, electro-galvanized iron alloy and other materials are also widely used, which can protect the steel structure and prevent oxidation, but also has the characteristics of beauty and fire prevention.
Automobile Manufacturing Field
Electrogalvanizing is also a commonly used material in the field of automobile manufacturing. Electro-galvanized coating can be used for surface protection and repair of automobile parts to avoid oxidation corrosion and damage, and to improve the service life of automobiles. The electro-galvanized coating can also be used in the manufacture of parts such as car frames and casings to avoid oxidation and corrosion, and improve the overall quality and durability of the car.
Home Appliance Manufacturing Field
In the field of home appliance manufacturing, galvanizing also has its important applications. For example, the manufacture of refrigerators, washing machines and other household appliances shell, lining, refrigerator and other parts, usually need to use electro-galvanized material for surface coating, to prevent metal oxidation, improve appearance and performance.
Product Parameters
Product Name
Prepainted Galvanized 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.
Zinc Layer
Hot Galvanizing: 60-275g/m²
Pre-galvanized: 80-275g/m²
Chemical Composition
Standard
Grade
C
Si
Mn
P
S
Ti
Forcold Forming
Chinese Standard
DX51D+Z
0.12
0.50
0.60
0.100
0.045
0.30
DX52D+Z
0.12
0.50
0.60
0.100
0.045
0.30
DX53D+Z
0.12
0.50
0.60
0.100
0.045
0.30
DX54D+Z
0.12
0.50
0.60
0.100
0.045
0.30
DX56D+Z
0.12
0.50
0.60
0.100
0.045
0.30
DX57D+Z
0.12
0.50
0.60
0.100
0.045
0.30
Forcold Forming
Japanese Standard
SGCC
0.15
0.50
0.80
0.050
0.030
0.025
SGCD1
SGCD20.12
0.100.50
0.500.60
0.450.040
0.0300.030
0.0300.025
0.025SGCD3
0.08
0.50
0.45
0.030
0.030
0.025
SGCD4
0.06
0.50
0.45
0.030
0.030
0.025
For Structure
Japanese Standard
SGC340
0.25
0.50
1.70
0.200
0.035
0.025
SGC400
SGC4400.25
0.250.50
0.501.70
2.000.200
0.2000.035
0.0350.150
0.150SGC490
0.30
0.50
2.00
0.200
0.035
0.025
SGC510
0.30
0.50
2.50
0.200
0.035
0.025
For Structure
AISI Standard
S220GD+Z
0.20
0.60
0.70
0.100
0.045
0.025
S250GD+Z
0.20
0.60
0.70
0.100
0.045
0.025
S280GD+Z
0.20
0.60
0.70
0.100
0.045
0.025
S320GD+Z
0.20
0.60
0.70
0.100
0.045
0.025
S350GD+Z
0.20
0.60
0.70
0.100
0.045
0.150
S550GD+Z
0.20
0.60
0.70
0.100
0.045
0.150
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
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Galvanized Surface Selection
Zero Spangle
Minimized Spangle
Normal Spangle
Large Spangle
Use of The Environment
Recommended Zinc Thickness
Indoor Use
Z10 or Z12 (100g/㎡or 120g/㎡)
Suburbs
Z20 and Painting (200g/㎡)
Urban or Industrial Area
Z27 (270g/㎡) or G90 (US Standard) and painted
Coastal Area
Thicker than Z27 (270g/㎡) or G90 (US Standard) and painted
Punch or Deep Drawing Application
Thicker than Z27 (270grams/㎡) or G90 (US Standard) avoid coating peeling after stamping
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
Japan Standard
European Standard
DX51D Z/DC51D Z (CR)
SGCC
DX51D Z
DX52D Z/DC52D Z
SGCD1
DX52D With
DX53D Z/DC53D Z/DX54D Z/DC54D Z
SGCD2/SGCD3
DX53D Z/DX54D Z
S220/250/280/320/350/550GD Z
SGC340/400/440/490/570
S220/250/280/320/350GD Z
DX51D Z/DD51D Z (HR)
SGHC
DX51D Z
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Prepainted Galvanized Steel Sheet - Stock Warehouse
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Prepainted Galvanized Steel Sheet - Product Inspection
Tensile Strength Testing Tensile Strength Testing Physical Performance Testing Chemical Composition Testing 
Inspection Hardness Testing Spectral Detection Mechanical Properties -
Prepainted Galvanized Steel Sheet - Product Measurement
Thickness Measurement Width Measurement Measurement Measurement -
Prepainted Galvanized Steel Sheet - Product Packaging
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