1. Brief introduction
Color steel coil is is also known as the pre-painted galvanized steel coil, color steel coil etc, typically
with a hot dip zinc coated steel substrate. Color steel coil refers to factory pre-painted zinc coated
steel, where the steel is painted before forming. Color steel coil is used galvanized steel or the
galvalume steel as the base materials, after surface pretreatment, such as chemical degreasing
and conversion treatment, next passed to be painted and baked, then we get the final products.
2. Quality control
Strict procurement process---skillful technical workers---final products inspection
(resistance to corrosion, salt spray test, exposure test, machinability, thermal resistance)
---standard packing
3. Features
1) Nice corrosion-resistant: Zinc layer provides nice protection of pre-painted galvanized steel sheet.
2) High heat-resistant: Reflective surface of material aids in efficiently reflecting sunlight away and
turn reducing amount of heat transmitted, thermal reflectivity converts into energy-saving.
3) Saltfog resistant
4) Beautiful decoration: Pre-painted galvanized steel sheet available in various patterns.
5) Customized sizes are accepted.
6) Wide-spread use: Can be used in various areas, such as building, light industry, automobile,
electrical home appliances, furniture, public facilities, etc.
4. Package
1)Color steel coil 2)Peripheral antirust board 3)Inside paper corner armor 5)Outside paper
corner armor 6)Plastic cannula 7)Peripheral corrugated paper 8)Circle protective corrugated paper
9)Periphery wrapper sheet 10)Inner guard board 11)Circle iron guard board 12)Outside iron
guard board 13)Inside iron guard board 14)Latitude strapping 15)Radial strapping
16)Lock catch gasket 17)Lock catch
5. Color coating production line
Color steel coil coating is a continuous, automated process for coating metal before fabrication into
end products. The steel or aluminum substrate is delivered in coil form from the rolling mills.
Color steel coil is positioned at the beginning of the coating line, and in one continuous process,
the coil is unwound, pre-cleaned, pre-treated, pre-primed, and prepainted before being recoiled on
the other end and packaged for shipment. All of this happens at up to 700 feet per minute!
6. Applications
1) Buildings and constructions: Roofing, ceilings, gutters, venting lines, indoor decorations,
window frames, etc.
2) Electrical appliances: Computer shells, washing machines, refrigerators, dehumidifiers,
video recorders, water heaters, etc.
3) Agricultural equipments: Troughs, feeding tools, agricultural driers, irrigation channels, etc.
4) Vehicle parts: Back-seat plates of buses and trucks, conveying systems, oil tanks, etc.
Base Material |
Hot dip galvanized steel sheet(HDG) |
Hot dip AL-ZINC coated steel sheet(55% AL-ZN) |
Zinc-iron-alloy steel sheet( ZF) |
Coating mass |
Zinc:60-275gm2 AL-ZN:60-220gm2 |
Thickness |
0.12-1.5mm |
Tolerance of thickness |
-0.03-+0.01mm |
Width |
600-1250mm |
ID |
610mm,508mm |
Quality Standard |
EN10142,EN10326,EN10169,JIS3302,ASTMA755M, GB/T12754 |
Steel Grades |
DX51D,DX52D,DX53D,S220GD,S250GD,SGCC |
Type of coating |
PE,PVDF,HDP,SMP |
Coating structure (Top surface/bottom surface) |
2/2 (Double coated/ double coated) |
2/1 ( Double coated/ single coated) |
(Top Paint Layer) |
20-25μm |
(Back Paint Layer) |
7-12μm |
Glossiness |
35-65 ±5° |
Weight of coil |
1-8T |
Package Method |
(Vertical packing) ( Horizontal packing) |