Shandong Emall Metal Resources Co., Ltd.

Galvanized aluminum steel coil

  • China Manufacturer Ral7016 Nippon Painting Dx51d PPGI/Prepainted Gi Steel Coil

China Manufacturer Ral7016 Nippon Painting Dx51d PPGI/Prepainted Gi Steel Coil


Zinc Coating:40-275G/M2


Width:10-600mm 600mm-1250mm

Coil ID:508mm

Base Materials:Cold Rolled Steel Coil


Grade:SGCC, Dx51d+Z


Quality Standard:En10346/En10169/JIS3302/Astma755m


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


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