Hot dip galvanized steel coil is made of cold rolled steel coil after continued hot dip galvanizing. It is a product with zinc coating which is 15~20 years more comparing with cold rolled coil. With its characteristics of superior anti causticity, high surface quality, good deep process and practicality, galvanized steel coil is widely used in the fields of roofing industry, construction material, welding pipes and household electric appliance.
Production flow：
Open coil (cold rolled steel coil)—Washing—Annealing—Zinc pot(hot-dipped galvanizing)—Air knife—Cooling—Skin pass and tension levelled—Late treatment—Close coil

Specification

Thickness: from 0.14mm to 4.0mm
Spangle: normal spangle, none-spangle, and big spangle
Zinc coating: from 60g/m2 to 275g/m2
Width: from 400mm to 1000mm
Hardness: full hard and soft temper

Hot dip galvanized steel coil mainly and widely used in the fields of deep drawing, roofing industry, welding pipes making, corrugated steel sheets and household electric appliances.