PPGI Steel Coil

COSASTEEL is a China PPGI Coil manufacturer.

PPGI Coil uses DX51D, ASTM a653, and q195 hot dipped galvanized steel sheet as the substrate, PE coating is our most commonly produced, it can be used for up to 10 years.

We can also customize the color of PPGI Coil, such as wood grain, matt.

PPGI sheet in coil is a kind of steel Coil with PE, HDP, PVDF, and other coatings. It has good processing and forming, good corrosion resistance, and the original strength characteristics of the steel plate.

Table of Contents

PPGI Specification

SubstrateDX51D, ASTM a653
Thickness0.13-0.8 mm
Width600-1250 mm
PaintTop paint : 10-30mic Back paint: 5-25 mic

PPGI Coil Profile

This is the PPGI steel coil Profile:

  • Top(Finish) Coating
  • Primer Coating
  • Chromate Coating
  • Zinc Coating
  • Base Metal(Cold Rolled Steel Sheet)
  • Zinc Coating
  • Chromate Coating
  • Epoxy, Polyester


The substrate is an annealed cold-rolled steel coil.

Chromated paint is used for cleaning the surface of the cold-rolled coil.

After Chromated, the next is zinc coated. The coil becomes a galvanized steel coil now.

After zinc coated, the next is Chromated again, for cleaning the galvanized steel coil surface again.

The primer coating is used for increasing the adhesion of the top coating. When cold roll forms, the paint will not fall off.

The top paint coating metal is PE or PVDF.

PPGI Coil Price in China

The main factors affecting the price of PPGI are the price fluctuations of steel raw materials, the thickness, and width of the substrate, the type of coating, the thickness of the coating, and the weight of the zinc layer.

Time: 2020/11/20

Zinc: 25g

Currency: dollar

Terms: FOB Qingdao

Size(mm)paint coated 11/5umpaint coated 15/5um


Color Coated Steel Coil Price: Factors Affecting

Mechanical Properties

This is the mechanical properties of the substrate(galvanized steel)

Gradetensile strength MPaElongation after breakingc A 80mm % not less than

Please note that DX51D is only suitable for cold roll forming processing, if deep drawing processing, the PPGI sheet will break.


What is the difference between PPGI and PPGL Coil?

They are all based on cold-rolled steel sheets.

PPGI is pre-coated on cold-rolled steel sheets after galvanizing, and PPGL is pre-coated on cold-rolled steel sheets with an alloy of 55% aluminum and 43.4% zinc.

The density of 55% AL-Zn is lower than that of Zn, and it is more cost-effective to use galvalume materials than galvanized materials.

Chinese PPGI Coil Manufacturer vs. Indian PPGI Coil Manufacturer

China’s hot-rolled steel coil production has accounted for more than half of the global hot-rolled steel output. In 2020, China’s hot-rolled steel output will actually account for 53.2%. In the same period, India’s hot-rolled steel coil production accounted for 5.6% of the world’s total output.

China’s PPGI steel coil production capacity is more, and the PPGI factories for cold forming are mainly concentrated in Boxing and Liaocheng. India needs to import PPGI steel materials, so the cost will rise.

PPGI Stand For?

The full name of PPGI is pre-painted galvanized steel, also known as color coated steel. 

PP is short for pre-painted;

GI is short for galvanized;

What are PPGI steel coils used for?

PPGI Coil is cold-formed and processed into metal roofing by a roll forming machine, which is mostly used in civil buildings. PPGI with wood grain color can also be used for the exterior of the door.

There is also a Dx52D PPGI material that can be used for deep drawing processing, such as lamp housing.

How to Choose PPGI?

When choosing PPGI steel coils, thickness, and color are usually considered.

You also need to pay attention to the mechanical properties of the substrate, such as yield strength.

The weight of the zinc coating of the galvanized steel sheet, the painting performance of PPGI (thickness, powder resistance, durability) and the type of painting, etc.

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USD 720
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Available in Stock