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After Steel Fabrication Hot Dip Galvanizing WHEREVER YOU ARE - Arabian Galvanizing Company, SERVICES ARE CLOSE TO YOU

Hot Dip Galvanizing is the Process of Applying a Zinc Coating to Fabricated Iron and Steel components by immersing the Material in a furnace consisting primarily of molten Zinc.

Zinc applied to iron and steel can add many years to the life of a component of facility. It is true that no other coating can match the blockade and cater protection that zinc provides.

Galvanizing Process:

During the Hot Dip Galvanizing Process iron and steel components are heated and dipped in molten zinc bath, at 450ºC. While the Steel is immersed in the Liquid Zinc, layer of Zinc – iron alloy is formed on the surface by a process of diffusion. When the steel components are withdrawn from the bath, these alloy layers are covered with a coating of Pure Zinc. The Formation of Zinc iron alloy coating, also know as the hard zinc coating, enhances corrosion resistances.

Advantages of Galvanizing:

  • Galvanizing Provides abrasion resistant coating for an exceptionally longer period.
  • No other protective coating can match this unique process.
  • Since Galvanizing involves coating of Zinc with base Steel at a considerably low cost and relatively high negligible maintenance for a longer period, it is consider to be the most cost saving and effective cost reduction coating today.
  • The galvanized coating become part of the steel surface as it forms zinc–iron alloy layers and metallurgically bonds to the base steel.
  • The corrosion rate is extremely slow compare to other conventional coatings.
  • The mechanical properties of commonly galvanized steel are not affected by galvanizing.

AGC - Galvanizing gives . . .

  • Barrier Protection:If any one of the elements (i.e. Anode, Cathode, Electrolyte or return current path) are not present, corrosion will not occur.
  • Cathodic protection: A galvanized coating will provide cathodic protection to expose steel.
  • Cathodic protection of damage areas : Where continuity of a galvanized coating is broken by cut edges, drilled holes are surface damage, small areas of expose steel are protected from corrosion cathodically by the surrounding coating. No touchup is necessary, and cathodic or sacrificial protection continues for many years. In service, zinc corrosion product tends to build up in coating discontinuities, slowing the rate at which the surrounding coating is consumed in protecting a damaged area.
  • Practical examples of this cathodic protection phenomenon include exposed cut edges in galvanized steel roofing and cladding, and the uncoated internal threads of certain fasteners.