Product Description

Galvanized steel coil /GL/GI
Detailed Product Description

GI ,Galvanized Steel

Steel Grde :SGCC ,SPCC ,D*1D ,D*4D

Thickness :0.***3.0mm ,width :max ***0mm

Zinc  coating:Z**-Z**5 or follow customer ‘s request

Applicatiom :  Base material for prepained colour steel coils ,and also for construction industr ,roof structure ,keel ,grill ,ceilings ,agriculture ,cashing of househole ,electronic application ,etc

Surface :Oiled- unoiled  ,Skin-Passed ,Chromated,Rosh Standard

Spangles :Regular /Small /Zero /minuzum/Big

Packing : Seaworthy standard export packing or customer’s request

PPGI/ppgl  is prepainted

 also known as precoated steel, coil coated steel, color coated steel etc.A galvanised steel sheet in form is cleaned, pretreated, applied with various layers of organic coatings which can be , dispersions, or .These coatings are applied in a continuous process known as Coil Coating.The steel thus produced in this process is a prepainted, prefinished ready to use material. PPGI is the material which uses galvanised steel as the basic substrate . There could be other substrates such as , Galvalume, , Galvanized etc.

Characteristics:

• Corrosion protection
• Long life-time for coated color

Product Specification:

Basic Substrate: cold rolled HDG / Galvalmue

Quality: CQ  DQ

Application:

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.

Notes for processing of color coated steel sheet

Notes for curving:

a. Remove the remainder and roast attached to the parts in stamping processing as they may cause scratch ,dent and reduce the durability.
b. As the outer edge of curved part could be elongated after processing, slight wrinkle may be generated, but not a problem yet. Maximizing the curving rate of processing part could eliminate this defect.
c. Thickness of coating layer should be taken into account when setting the clearance between punch and die.
d. As the coating appliqué may become fragile when temperature is too low, thus wrinkle, sink and slipping may arise during the processing in low temperature. Deformation processing should be avoided when the temperature of steel sheet is lower than *1 .Should temperature of environment becomes too low, warming the steel sheet could be a better choice.
e. In order to keep the formation roller and surface of steel sheet from damaging and scratch, formation roller (such as quenched steel and mold die) made of hard material should be adopted. Chrome should be galvanized to the surface of roller.
f. It is advisable to add protective appliqué onto the surface of color coated steel sheet. When the construction finished, protective appliqué could be removed.

Requirement for transporting the color coated steel sheet

a. Keep the color coated steel sheet far from water and sunshine .It is advisable to store them indoors.
b. Should the color coated steel sheet be rained or dewing, please dry them as soon as possible so as to remove humidity.
c. Keep the inventory as the same as it shipped from factory, do not stock as piles so as to protect the coating layer.
d. It is strongly recommended to consume the steel sheet that comes into the inventory earlier. Otherwise, pollution, scratch and color aberration may arise as steel sheet produced at different date mixed together.
e. Transport the steel sheet as it shipped out of factory. Releasing the cushion and reversing the package is highly harmful.
f. When unloading the steel sheet or steel coil, rubber cushion and lift must be adopted for the sake of avoiding scratch.
g. Clean the carriage of transporting the color coated steel sheet and add rubber cushion or adopt protective instrument .
h. Vertical packaging is advised for transporting color coated steel sheet. Coil down ending machine should be used to put the coils horizontally.
i. Steel sheet and coils should be fixed well prior to transportation ,otherwise they will move and cause scratch.
j. When take out color coated steel sheets, do not pull. Otherwise, flash of cutting section and edge will cause dent and scratches.