Galvanized Sheet Steel Coil

As a leading manufacturer and supplier of Galvanized Sheet Steel Coils, we deliver a premium product that combines durability, corrosion resistance, and versatility. Our Galvanized Sheet Steel Coils undergo a meticulous galvanization process, where a protective layer of zinc is applied to the steel surface, providing exceptional protection against rust and corrosion. This results in a high-quality product suitable for a wide range of applications, including construction, automotive, and industrial sectors.

Introduction

Galvanized sheets can be divided into the following categories according to production and processing methods:

  1. Hot-dip galvanized steel plate. A thin steel plate is immersed in a molten zinc bath so that a layer of zinc adheres to its surface. At present, the continuous galvanizing process is mainly used for production, that is, the rolled steel plates are continuously immersed in a plating bath containing molten zinc to make galvanized steel plates;
  2. Alloyed galvanized steel sheet. This kind of steel plate is also made by the hot dip method, but it is heated to about 500°C immediately after coming out of the tank to form an alloy film of zinc and iron. This kind of galvanized sheet has good paint adhesion and weldability;
  3. Electro-galvanized steel plate. This kind of galvanized steel sheet manufactured by electroplating method has good processability. However, the coating is thin and its corrosion resistance is not as good as that of hot-dip galvanized sheets;
  4. Single-sided galvanized steel plate and double-sided galvanized steel plate. Single-sided galvanized steel sheet is a product that is galvanized on only one side. In terms of welding, painting, anti-rust treatment, processing, etc., it has better adaptability than double-sided galvanized sheets. In order to overcome the shortcomings of one side not being coated with zinc, there is another type of galvanized sheet that is coated with a thin layer of zinc on the other side, that is, double-sided galvanized sheet;
  5. Alloy, composite galvanized steel plate. It is made of zinc and other metals such as lead, zinc alloy or even composite plated steel plate. This kind of steel plate has both excellent anti-rust properties and good painting properties.

In addition to the above five types, there are also colored galvanized steel sheets, printed and painted galvanized steel sheets, PVC laminated galvanized steel sheets, etc. But currently the most commonly used is still hot-dip galvanized sheet.

Galvanized Steel Sheet & 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)

Available Specifications

Thickness (mm)0.12-1.5mm
Width (mm)30mm-1500mm
Roll weight3-8 tons
Zinc layer30-275g
Roll inner diameter508/610mm
Surface treatmentoiling, passivation or chromium-free passivation, passivation + oiling, chromium-free passivation + oiling, fingerprint resistance or chromium-free fingerprint resistance
MaterialGeneral use, structural use, stamping and deep drawing use, high-strength plate (yield strength above 350MPa)

How to Choose Base Metal Based on Applications?

UsageGradeYield Strength (MPA)Tensile Strength (MPA)Elongation rate %
Punching galvanized steelDX51D+Z~270-500>=20
DX52D+Z140-300270-420>=22
DX53D+Z140-260270-380>=26
DX54D+Z140-220270-350>=30
Structure galvanized steelS220GD+Z>=220>=300>=18
S250GD+Z>=250>=330>=17
S280GD+Z>=280>=360>=16
S320GD+Z>=320>=390>=15
S350GD+Z>=350>=420>=14
S400GD+Z>=400>=470~
S500GD+Z>=500>=530~
S550GD+Z>=550>=560~

Advantages

Enough Zinc Coating

Zinc layers can be produced from 30g to 550g and can be supplied with hot dip galvanizing, electric galvanizing and pre-galvanizing. Provides a layer of zinc production support after inspection report.

Standard Thickness & Guaranteed Quality

The thickness is produced in accordance with the contract. Our company process the thickness tolerance is within 0.01mm.

Cutting Neat

Laser cutting nozzle,the nozzle is smooth and neat. Can be custom cut to any width from 20mm to 1500mm.