Galvanized Coil
Hot-dip galvanized steel products are now being used in a wide range of automobiles, electrical equipment, and other industrial machinery as well as in civil engineering and construction. Since hot-dip galvanized steel products are characterized in excellent formability, weldability, paint ability as well as omit corrosion, they can meet the high-quality requirements of the users.
Spangles on Galvanized Steel
Spangle is formed during the hot-dip galvanizing process. The size, brightness, and surface of spangles mainly depend on the Composition of the zinc layer and the cooling method. According to the size, it includes small spangles, regular spangles, big spangles, and free spangles. They look different, but the spangles almost will not influence the quality of galvanized steel. You can choose according to your preference and use purpose.
(1) Big or Regular Spangles
Spangle-promoting elements are added to the zinc bath. Then beautiful spangles are formed as the zinc layer solidifies. It looks good. But the grains are coarse and there is slight unevenness. In a word, its adhesion is poor but weather resistance is good. It is most suitable for guardrails, blowers, ducts, rolling shutters, drain pipes, ceiling brackets, etc.
(2) Small Spangles
During the solidification process of the zinc layer, zinc grains are artificially restricted to form as fine spangles as possible. The spangle size can be controlled by cooling time. Generally, the shorter the cooling time, the smaller the size. Its coating performance is great. Therefore, it is perfect for drainage pipes, ceiling brackets, door columns, the substrate for color coated steel, car body panels, guardrails, blowers, etc.
(3) Zero Spangles
By adjusting the Chemical Composition of the bath, the coating has a uniform surface without visible spangles. The grains are very fine and smooth. It has excellent corrosion resistance and good coating performance. It is also ideal for drainage pipes, automobile components, back panels for home appliances, automobile body panels, guardrails, blowers, etc.
FEATURES
1. Cost-effective Solution
Compared to GL or color coated steel coils, the galvanized coil is the most cost-effective solution but with similar features, such as great corrosion resistance, good appearance, etc.
2. Wide Applications
GI sheet roll is easy to process for different purposes. It is widely used in construction, home appliances, automobile containers, transportation, etc. Besides, it has good coating adhesion and weldability. That’s why it is also an ideal base metal for PPGI products.
3. Easy to Transport
Compared to GI steel sheets, coils are easier to transport. In this way, it will save your shipping cost.
Galvanized Coil Specification
| THICKNESS | 0.25 MM TO 4 MM |
| WIDTH | 900 MM TO 1250 MM |
| ZINC COATING | 90 GSM TO 275 GSM |
| TYPES AVAILABLE | GI – GALVANISED STEEL COIL |
| GA – GALVANNEALED STEEL COIL | |
| MAKE | TATA/JSW/AMNS/POSCO/IMPORTED |
| GRADE | ALL GRADES |
| SLIT WIDTH | 25 MM TO 1250 MM |