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.
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 Structure | Mini Spangle | Big Spangle |
Weight of zinc coating | Zinc > 20g/sm | Zinc > 30g/sm |
Surface Finish |  |
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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
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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