1. Prepainted Gi Steel Coil description.
It is produced through a process of metal coating which involves passing cold rolled coils
through a zinc pot. The process ensures the adherence of zinc to the surface of steel sheet.
The zinc layer provides excellent corrosion resistance so that it can prolong the service life
of the product
2. Prepainted Gi Steel Coil flow chart
Pay off reel → double cut shear → welder-notcher → entry accumulator → pre cleaning section
→ furnace → hot bridle → zinc pot → air knife → after cooler → water quench → dryer → skin
pass mill → dryer → tension leveler → dryer → chemical coater → chemical oven → cooler →
exit accumulator → oiler → exit shear → tension reel
3. Prepainted Gi Steel Coil main usage scope
It is mainly used as important building materials in construction: Steel profiles for wall partition,
suspension ceiling, cable tray, air duct, etc.
4. Prepainted Gi Steel Coil advantages
1) Good durability, and can be used longer than galvanized steel
2) Good heat resistance, and compared with galvanized steel, under high temperature
3) Discolor easily
4) Good heat reflecting, good weldability, good adhesion
5) Machining capability and spraying performance similar to galvanized steel
6) Protective film can be provided according to customers' requirement
| Name |
Prepainted Gi Steel Coil |
| Standard |
GB/T12754-2006 |
| Thickness |
0.14~0.8mm |
| Width |
1000~1200mm |
| Outside diameter |
MAX ¢1700mm |
| Inside diameter |
¢ 508/610mm |
| Bending strength |
1-8T |
| Reverse impact |
6J-9J |
| Hardness |
3H |
| MEK |
> 120 times (front) |
| < 120 times (back) |
| Process speed |
MAX 120m/min |
| Basic material |
galvanized coil |
| Zinc coating |
40-275g/m² |
| Color |
Ral No. or as your sample |
| Package |
mills standard export packing, or according to the customers requirement |
| Providing capability |
150,000 tons per year |
| Use for |
Color substrate, building, home appliances, transportation, auto industry, office supplies
and articles for daily use |
Audited Supplier 
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