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Galvanized Sheet

Galvanized sheet steel is coated with zinc to prevent rust and corrosion, ensuring durability and longevity. Widely used in construction, manufacturing, and automotive industries, it offers excellent strength, formability, and weather resistance, making it a reliable choice for various applications.

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Galvanized Sheet Description

Galvanized sheet is a steel product coated with a protective zinc layer to enhance corrosion resistance and durability. This process prevents rust, making it ideal for construction, automotive, and industrial applications. With excellent strength, formability, and a smooth surface finish, it meets the demands of various industries requiring long-lasting materials. Galvanized sheets offer superior protection against moisture, chemicals, and harsh environmental conditions, ensuring reliability and cost efficiency. Available in different thicknesses and specifications, they comply with international quality standards, making them a preferred choice for structural components, roofing, and machinery manufacturing.

Full Cold Galvanizing Process:

Chemical degreasing → hot water washing → water washing → electrolytic degreasing → water washing → acid washing → rust removal → water washing → electrogalvanizing process → water washing → passivation → hot water washing → drying → quality inspection → packaging and sales

Scope of Application

Building 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 Hot Dip Galvanized 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
SGCD2
0.12
0.10
0.50
0.50
0.60
0.45
0.040
0.030
0.030
0.030
0.025
0.025
SGCD3 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
SGC440
0.25
0.25
0.50
0.50
1.70
2.00
0.200
0.200
0.035
0.035
0.150
0.150
SGC490 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
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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