Galvanized Steel Sheet
Description of Galvanized Rolled Steel
Hot dipped 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
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.
