Galvanized Steel Sheet

Description of Galvanized Rolled Steel
Hot dipped china galvanized steel sheet is a carbon steel sheet coated with zinc on both sides through a continuous hot-dip process. When the heated steel strip is in contact with the molten zinc, the coating is firmly adhered to the steel by the iron-zinc alloy adhesive layer formed by the diffusion process. One of the disadvantages of galvanizing is that if the zinc coating is scraped off the steel, the steel will lose its protection and may fail.

Specification of Galvanized Steel Sheets
Product name Galvanized Steel Sheets
Zinc Coating 20-120g/m2
Thickness 0.14-1.0mm
Width 600-1250 mm
Length custom
Thickness Tolerance +0/-0.001
Width Tolerance +/-0.06
Length Tolerance +/-0.06
Surface Structure Mini/Big Spangle
Surface Treatment Anti-Finger printing, Chromated, oiled/ non-oiled
Finish Galvanized
Surface Finish of Galvanized Steel Sheet
Surface Structure Mini Spangle Big Spangle
Weight of zinc coating Zinc > 20g/sm Zinc > 30g/sm
Surface Finish
Galvanized Steel Sheet Production Process:
1. Uncoiler

2. Welder

3. Entry Looper

4. Pre-treatment

5. Annealing Furnace

6. Zinc Pot

7. Cooling Tower

8. Water Quench Tank

9. Skin Pass

10. Tension Leveler

11. Passivation Coater

12. Exit Looper

13. Recoiler



Quality Control of Galvanized Steel Sheet
Use bending machine, pencil hardness tester, gloss meter, meteorological tools, row lattice unit, micrometer tools, thickness gauge to control the quality of galvanized steel coil.

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