Hot Dip Galvanising is the process of applying of Zinc coating to iron or steel surface for protection against corrosion. During the galvanising process a series of alloy layers are formed due to a metallurgical reaction that takes place between steel and zinc.

The zinc coating protects the base metal by acting as an impervious shield between the metal and atmosphere and provides additional protection even when moderately sized areas of base metal surface are exposed.

Hot Dip Galvanizing gives:

Excellent corrosion protection to steel.
Two levels of protection.
Long Life
Freedom from rust
Low maintenance
Kadevi follows the following method to impart the protection to the
base material against corrosion.

Preparation

First step is the preparation of the material to be galvanized. In the
galvanizing process materials are subject to very high temperatures. To
avoid any potentially explosive situation it is therefore necessary that the
materials to be galvanized are fabricated such that there are no blind
corners, sealed tubes or any other such area.

Standards :
IS : 2629, 2745 2745, 4759-79, 209-99, 6158-71
BS EN ISO 1461
ASTM 123
BS 729

Results :

Appearance of finished Galvanised coating may vary depending upon the
chemical composition of the parent material.

Final product appearance can range from bright shiny to dull gay. The dull
gray colour is due to the high silica content in the steel.

The protection offered by the galvanized coating is however not
dependent on the colour and its effectiveness remains the same
irrespective of colour.

Our galvanised coating safeguards the material against corrosion in an
exposed environment for more than 25 years under Indian conditions. The
period of protection is much longer in a less harsh and internal environment and can extend beyond 60-70 years.

Testing Facilities :

Facilities for carrying out Chemical, Physical Testing & Galvanising Testing are available in our laboratory.
Tests are carried out in accordance with IS 2062-99, 2633-1986 & 6745-72
Spectometer
Ultimate Tensile Machine
Hardness Tester
Elcometer Test
Pierce Test
Strip Test
Knife Edge Test
Pivot Hammer Test
Prior to Despatch, final pre-despatch testing of all products is ensured
for 100% fitment, strength and durability of zinc coating.