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Galvanized And Alloy Coated
GALVANIZED

Galvanized or zinc coated steels are unexcelled where economy, strength
and corrosion resistance are the prime requirements.
These products are available with a variety of coating weights, surface finishes
and mechanical properties, designed to meet the particular requirements
of the customer.
The steel core provides high strength and formability, and the zinc coating
is unmatched as an effective and economical protection. Zinc is used as a
protective coating because of its extremely slow oxidation rate and its protective
sacrificial action which inhibits corrosion of the steel.
Zinc coated steel sheets are produced on modern continuous hot dip or
electro-galvanizing lines, and the finished product is excellent in appearance,
formability, and the coatings’ adhesion and uniformity.
Zinc coated material can be ordered as Unpassivated or Passivated, Dry
or Oiled.
Passivation is a treatment used to prevent storage stain; however it
impedes on the effectiveness of paint adhesion, while unpassivated
material offers excellent paint adhesion.
Light Oil is recommended for temporary protection against storage stain.
The following products are available in coils and sheets with a variety of
qualities and surface finishes, detailed in the following tables.
 
 
GALVANIZED ALLOY-COATED

This Zinc-Iron alloy coating has a uniform matte grey, spangle free appearance
without wipe lines on the surface. Carbon steel sheet is processed
through a molten zinc bath and continuously run in an annealing furnace,
enhancing physical and surface properties with a ratio of Zinc-Iron alloy of
8% to 12%. The product is suitable for painting applications provided usual
precautions have been taken to ensure the absence of oil or grease; all
forming/bending should be performed prior to painting.
In the unpainted condition, it is suitable for interior dry applications only.
Designed as a replacement for “WIPE COAT FINISH”, it offers superior
bonding of alloys and a smoother surface finish.

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