Galvanized Steel Coil

Galvanized Steel Coil

Galvanized steel is defined as a carbon steel sheet coated with zinc on bothsides. Continuous hot dipping, or electro-galvanizing are the two processes used to produce galvanized sheet and coil. Generally speaking, the hot dip process consists of passing the steel through a bath of molten zinc. The electro-galvanizing process consists of the application of zinc by electrolytic disposition. The result is a layer of zinc tightly adhering to the base metal through an iron-zinc bonding layer.

A zinc coating is one of the most effective and economical methods of protecting bare steel from a corroding environment. The zinc not only serves as a barrier between the steel and the environment, it will sacrifice itself to protect the underlying steel sheet. Sacrificial, or galvanic protection occurs when two dissimilar metals are in contact and coupled with water and oxygen. Zinc corrodes preferentially to the iron in steel. This protection prevents corrosion of the steel at areas not covered with zinc. Thus, the spread of corrosion from cut edges, drill holes, etc. is minimized.

Surface Treatment: Passivation or Chromated, Skin Pass, Oil or Unoiled, or Antifinger Print

Spangle Types: Free Spangle(No Spangle), Minimal Spangle, Regular Spangle

Application:

Pre-Engineered Steel Buildings, 

Industrial and Commercial Roofing and Cladding,

Ventilating Duct; Handrail, Partition Panel

Agricultural Buildings, Building Accessories, Light Steel Framing, 

Quonset Huts, Construction Tubular, 

Appliance, Refrigerater, Washing Machine, Recorder, Microwave 

Automotive,

Further processing: coating base plate

Galvanized Steel Roof Sheet