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ASTM A653/A653M G40,G60,G90 Hot dipped Galvanized Steel coil

Galvanized steel is defined as a carbon steel sheet coated with zinc on both sides. There are two main processes used to produce galvanized steel: continuous hot dipping and electro-galvanizing. The hot dipping process consists of passing the steel through a bath of molten zinc, while the electro-galvanizing process consists of the application of zinc through electrolytic disposition.  The result is a layer of zinc tightly adhering to the base metal through an iron-zinc bonding layer. 


Most important, our hot-dipped galvanized steel coil and sheet service capabilities include slitting,cutting to length, blanking, degreasing and brushing, stretcher leveling and metallurgical support.


Product Details

Product Name: Hot-dipped galvanize coil
Standard: ASTM A653/A653M
Material: Q235 Q345 or according to your request
Grade: Type A, Type B, Type C
Coil weight: 3-10 ton or according to your request
Thickness: 0.12mm-6.0mm
Width: 20mm-1250mm or according to your request
Zinc coating: G40,G60,G90 Or according to your request
Surface Structure: Zero Spangle / Mini Spangle / Regular Spangle / Big Spangle
Surface Treatment: Passivation/skin pass/non-oiled/oiled
Technique: Hot dip galvanized
Performance: Durable, anti-fingerprint
MOQ: 1 ton per size
Supply Ability: 5000t/month
Delivery Time: Within 15 days after receiving the pre-payment.
Export Packing: Standard Export Seaworthy Package.
Payment Terms: L/C at sight, T/T or Negotiable.



Advantages of Galvanized Steel

The main advantage of galvanized steel is its corrosion resistance. The zinc coating serves as a barrier between the steel and the environment and will sacrifice itself in order to protect the underlying steel; Meaning the zinc will degrade much sooner than the steel itself. Additionally, it offers good processability and formability.




Galvanized Steel Coil Material Types

  • Commercial Steel (CS Types A, B, and C)
  • Forming Steel (FS Types A and B)
  • Deep Drawing Steel (DDS Types A and C)
  • Extra Deep Drawing Steel (EDDS)
  • Structural Steel (SS) – further designated by Grades (33,37,40,50,80)
  • High Strength Low Alloy Steel (HSLAS)



Coating Designation(both sides)

Standard ASTM
G40 120g/m² G60 180g/m² G90 275g/m²
G115 350g/m² G165 500g/m² G185 560g/m²


Typical Galvanized Steel Coil Applications:

  • Exterior building products
  • Ductwork
  • HVAC products
  • Flashing
  • Roofing
  • Doors
  • Sashes



Manufacturing process:



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