Active Member
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[China]
Address: Shangjie Huangjinji Industrial Zone,Qishi Town,Dongguan,Guangdong,P.R. China 523501
Contact name:Anna Ye
Hongfa Steel Structure Mats. Co., Ltd. |
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Corrugated Galvanized Steel Sheet , Painting Galvanized Steel Roofing
Description:
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.
Specification:
Standard | JIS,EN,ASTM |
Grade | SGCC(DX51D+Z) |
Thickness | 0.25-1.2mm |
Width | 914-1250mm |
Length | As coils or sheets as your requirement |
Color | According to your color sample or RAL color code |
AZ coating | 50-150g/m2 |
Painting thickness | 25 microns on top side/5-7microns on back side |
Coil ID | 508mm |
Coil weight | Generally 4-10MT,according to your requirment |
Mechanical Properties:
1. Mechanical properties of base metals
Grade | Tensile Test | ||
Yield Strength MPa | Tensile Strength MPa | Elongation A80mm % ≥ | |
DC51D+AZ | 280-325 | 320-500 | 22 |
DC52D+AZ | 240-300 | 270-420 | 26 |
DC53D+AZ | 140-260 | 270-380 | 30 |
2. Common performance of front coating
(1). Thickness: ≥20μm
(2). Pencil Hardness: 2H
(3). 60° specular glossiness of coating: >60
(4). 180°bend: ≤3T
(5). Impact: ≥9J
(6). Salt Fog Resistant: ≥500h
(7). Color difference: <0.8ΔE
Application of Pre-Painted Galvalume 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.
