Brief Introduction:

1. Prepainted Steel Coil is coated with organic layer, which provides higher anti-corrosion property and a longer lifespan than that of galvanized steel sheets. 

2. The base metals for Prepainted Steel Coil consist of cold rolled, HDG electro-galvanized and hot-dip alu-zinc coated steel. The finish coats of Prepainted Steel Coil can be classified into groups as follows: polyester, silicon modified polyesters, polyvinylidene fluoride, high-durability polyester, etc. 

3. The production process has evolved from one-coating-and-one-baking to double-coating-and-double-baking, and even three-coating-and-three-baking.

Specification of PPGI Prepainted Galvanized Steel Coil Used for Roof and Building:

1. Thickness: 0.25-1.2mm

2. Width: 914*1250mm

3. Inner Diameter: 508mm 

4. Weight of Steel Coil: 4-10MT, or as requirements

5. AZ Coating : 50-150g/m2

6. Surface Texture: Normal Coated

7. Type of coating structure: 2/1 Coat the top surface of the steel sheet twice, 

      coat the bottom surface once, and bake the sheet twice.

8. Front side paint thickness: 5-25μm (bottome paint + top paint)

9. Back side paint thickness: 5-7μm

Item	PPGL Prepainted Galvalume Steel Coil Used for Roof and Building
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	5+25 microns on top side/5-7 microns on back side
Coil ID	508mm
Coil weight	Generally 4-10MT,according to your requirment
Production ability	650000 MTs/year
SKYPE	Shirleylu2411
Mobile	86 13706510764

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mechanical Properties:

1. Mechanical properties of base metal

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

More informations, pls feel free to contact me!

Mob: 86 13706510764

Skype: shirleylu2411

Email: shirleylu(at)prptmetal(dot)com