Payment & Shipping Terms:
|Color:||RAL Color||Type:||In Coil|
DX51D Prepainted Galvanized Steel Coil For Steel Roofing Sheet In Different Color
In the continuous processing machine, cold rolled steel sheet and zinc galvanized steel sheet served as basal plate, one layer or several layers of liquid paint are painted onto the basal plate after surface pretreatment. Steel sheet is changed into coated steel sheet after baking and cooling. As the layer bears different colors, thus coated steel sheet is also known as color coated steel sheet. Besides, because painting is preceded prior to the formation processing, coated steel sheet is also called as pre-coated steel sheet. .In this processing ,traditionally adopted spraying is replaced by continuous painting, which is conducive to surface treatment ,quality control of coating layer and avoid defects in edges.
|Thickness tolerance||+/- 0.02mm|
|Zinc coating||Z40-Z275 AZ30-AZ150|
|Color||Grey white, sea blue, red or any RAL standard|
|Painting||Top: 20+/-5um Back: 5mic---8mic|
|Standard||ASTM, AISI, DIN, GB,JIS|
|Material||SGCC,SGCD,SECC,SECD,DX51D+Z, S350GD, S450GD, S550GD|
|Technique||Cold rolled, hot-dipped galvanizing, color coated, galvanized, Galvalume|
|Spangle||Zero spangle, regular spangle or normal spangle|
|Surface Structure||Galvanized, Galvalume, zero spangle, regular spangle or normal spangle|
|Surface treatment||Chromate and oiled, chromate and non-oiled|
|Packing||Export standard, or according to client requirement|
|Min order||50 tons|
|Coil weight||3-6tons or as client requirement.|
Structure of Prepainted Galvanized Steel Coil:
*Topcoat (finishing) which provides color, pleasing appearance and appearance and a barrier film to enhance long-term durability.
*Primer coat to prevent undercutting of paint and enhance corrosion resistance.
*Pretreatment layer applied for good adhesion and to enhance corrosion resistance.
*Base steel sheet.
Application of Prepainted Galvanized Steel Coil:
1.Application of color coated steel sheet: Outdoor: roof, roof structure, surface sheet of balcony, frame of window, door, door of garage, roller shutter door, booth, Persian blinds, cabana, refrigerated wagon and so on. Indoor: door, isolater, frame of door, light steel structure of house, sliding door, folding screen, ceiling, internal decoration of toilet and elevator.
2.Refrigerator, refrigerated wagon, washing machine, electric baker, automatic selling machine, air conditioner, copying machine, cabinet, electric fan, vacuum sweeper and so on.
3.Application in transportation
Ceiling of automobile, board , internal decoration board, external shelf of automobile, carriage board, car ,instrument panel, shelf of operating platform, trolley bus, ceiling of railway, color isolator of ship, furniture of ship, floor, cargo container and so on.
4.Application in furniture and sheet metal processing
Electric warming oven, shelf of water heater, counter, shelves, chest of drawers ,chair, archive cabinet, book shelves.