SGCC Galvanized Steel Coils
Galvanized coil, the thin steel sheet is immersed in a molten zinc tank to make a layer of zinc thin steel sheet adhered to its surface.
It is mainly produced by continuous galvanizing process, that is, the rolled steel sheet is continuously immersed in a plating tank with molten zinc to make a galvanized steel sheet; alloyed galvanized steel sheet. This steel sheet is also made by hot dip method, but after leaving the tank, it is immediately heated to about 500℃ to form an alloy film of zinc and iron. This galvanized coil has good coating adhesion and weldability.

Product Parameters

Galvanized coil, the thin steel sheet is immersed in a molten zinc tank to make a layer of zinc thin steel sheet adhered to its surface.

It is mainly produced by continuous galvanizing process, that is, the rolled steel sheet is continuously immersed in a plating tank with molten zinc to make a galvanized steel sheet; alloyed galvanized steel sheet. This steel sheet is also made by hot dip method, but after leaving the tank, it is immediately heated to about 500℃ to form an alloy film of zinc and iron. This galvanized coil has good coating adhesion and weldability.


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


Galvanized Coil.jpg


Product Parameters

Product NameGalvanized Coil
Thickness0.12mm-3.5mm
Width600mm-1500mm
StandardAISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc.
Zinc Layer 40-400g/m²


Chemical Composition

StandardGradeCSiMnPSTi
Forcold FormingChinese StandardDX51D+Z0.120.500.600.1000.0450.30
DX52D+Z0.120.500.600.1000.0450.30
DX53D+Z0.120.500.600.1000.0450.30
DX54D+Z0.120.500.600.1000.0450.30
DX56D+Z0.120.500.600.1000.0450.30
DX57D+Z0.120.500.600.1000.0450.30
Forcold FormingJapanese StandardSGCC0.150.500.800.0500.0300.025
SGCD1SGCD20.120.100.500.500.600.450.0400.0300.0300.0300.0250.025
SGCD30.080.500.450.0300.0300.025
SGCD40.060.500.450.0300.0300.025
For StructureJapanese StandardSGC3400.250.501.700.2000.0350.025
SGC400SGC4400.250.250.500.501.702.000.2000.2000.0350.0350.1500.150
SGC4900.300.502.000.2000.0350.025
SGC5100.300.502.500.2000.0350.025
For StructureAISI StandardS220GD+Z0.200.600.700.1000.0450.025
S250GD+Z0.200.600.700.1000.0450.025
S280GD+Z0.200.600.700.1000.0450.025
S320GD+Z0.200.600.700.1000.0450.025
S350GD+Z0.200.600.700.1000.0450.150
S550GD+Z0.200.600.700.1000.0450.150


Mechanical Properties

GradeYield Strength MPa≥Tensile Strength MPa≥Elongation A%≥
DX51D Z/ZM/AZ/AM240-380270-50022
DX52D Z/ZM/AZ/AM140-300270-42026
DX53D Z/ZM/AZ/AM140-260270-38030
DX54D Z/ZM/AZ/AM120-220260-35036
S220GD Z/ZM/AM22030020
S250GD Z/ZM/AZ/AM25033019
S280GD Z/ZM/AM28036018
S300GD A/AM30038018
S320GD Z/ZM/AM32039017
S350GD Z/ZM/AZ/AM35042016
S450GD A/AM45048015
S550GD Z/ZM/AZ/AM550550-

Use of The EnvironmentRecommended Zinc Thickness
Indoor UseZ40 or Z120(40g/㎡or 120g/㎡)
SuburbsZ200 and Painting (200g/㎡)
Urban or Industrial AreaZ275 (275g/㎡) or G90 (US Standard) and painted
Coastal AreaThicker than Z275 (275g/㎡) or G90 (US Standard) and painted
Punch or Deep Drawing ApplicationThicker than Z275 (275 grams/㎡) or G90 (US Standard) avoid coating peeling after stamping


Surface Treatment TypeCodeFeatures
Chromic Acid TreatmentCGood corrosion resistance, suitable for bare state
Chromic Acid Treatment+OilingSGood corrosion resistance
Phosphoric Acid Treatment (Including Sealing Treatment)PHave a certain corrosion resistance, good paint performance
Phosphoric Acid Treatment (Including Sealing Treatment)+OilingQHas a certain corrosion resistance, good paint performance, prevent rust during transportation and storage
Phosphoric Acid Treatment (Excluding Sealing Treatment)THave a certain corrosion resistance, good paint performance
Phosphoric Acid Treatment (Excluding Sealing Treatment)+OilingVHas a certain corrosion resistance, good paint performance, and prevent rust
OilingOPrevent rust during transportation and storage
No TreatmentMSuitable for immediate painting


Galvanized Surface Selection


Zero SpangleMinimized SpangleNormal SpangleLarge Spangle
 1725437868689870183713009664.png1725437874689870206135758848.png 1725437879689870226893373440.png 1725437884689870250888986624.png


Material Comparison

Chinese StandardJapan StandardEuropean Standard
DX51D Z/DC51D Z (CR)SGCCDX51D Z
DX52D Z/DC52D ZSGCD1DX52D With
DX53D Z/DC53D Z/DX54D Z/DC54D ZSGCD2/SGCD3DX53D Z/DX54D Z
S220/250/280/320/350/550GD ZSGC340/400/440/490/570S220/250/280/320/350GD Z
DX51D Z/DD51D Z (HR)SGHCDX51D Z


Factory Display

  • 645f88ceb28016b71deb44d0eca6ae91346ff4f633046-YV9trp.jpg
  • 4ba06389467ca90624596b987abe434be8635cba188343-TdLEpR 拷贝.jpg
  • 8.jpg
  • 1.jpg
  • 12.jpg
  • 工厂 (2).png
  • 工厂 (2).jpeg
  • 工厂车间 (1).jpeg
  • 工厂车间 (12).jpeg

FAQ

Q: Are you trading company or manufacturer ?

A: We are professional manufacturer with 20 years' experience, and our company also is a very professional a trade company for steel products.We can also provide a wide range of steel products.

Q: Will you delivery the goods on time?

A: Yes,we promise to deliver on time,indemnity clause in contract terms will work if we couldn't.

Q: Do you provide samples ? Is it free or extra ?

A: The samples are free,you just need to pay the courier freight.

Q: How could you guarantee your products?

A: Products are manufactured by certified workshops, inspected by professional inspector.

Q: Do you accept the third party inspection?

A: Yes, absolutely we accept.

Q: How do we trust your company?

A: We specialist in steel business for many years, authenticated by SGS,welcome to visit our factory.

Q: What's your advantages?

A: Our own production lines make the good prices and high quality possible and seasoned workers serve you 7*24 hours.

Q: Can you produce the products according to my own drawings?

A:Yes,we can produce the products according to your drawings that will be most satisfy you.

Q: What is your Payment?

A: 100% T/T advance , Western Union (For Small Order)
B: 30% T/T and balance 70% before the shipment
C: 100% Irrevocable LC at sight (For Big Order)

Q: How long is the Delivery time?

A: 7~20 working days after confirming the payment.
If the order is urgently, we will push our workshop finish in advance.

Product Recommendation