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PPGI (Prepainted Galvanized Iron) steel coil is a galvanized steel substrate coated with a protective layer of paint. It offers enhanced corrosion resistance, aesthetic appeal, and durability, making it ideal for roofing, wall panels, appliances, construction, and automotive applications. The paint coating provides additional protection against environmental elements such as humidity, UV radiation, and chemical exposure.
PPGI (Prepainted Galvanized Iron) steel coil is a galvanized steel substrate coated with a protective layer of paint. It offers enhanced corrosion resistance, aesthetic appeal, and durability, making it ideal for roofing, wall panels, appliances, construction, and automotive applications. The paint coating provides additional protection against environmental elements such as humidity, UV radiation, and chemical exposure.
Product Description
| Product | PPGI Steel Coil (Prepainted Galvanized Steel Coil) |
| Standard | ASTM A653, JIS G3302, EN 10346, GB/T 2518 |
| Base Metal | Galvanized Steel (GI), Galvalume Steel (GL) |
| Steel Grade | DX51D, DX52D, DX53D, SGCC, SGC340, SGC400 |
| Thickness | 0.12mm – 2.0mm |
| Width | 600mm – 1500mm |
| Coating Type | PE, SMP, HDP, PVDF |
| Zinc Coating | Z40 – Z275 g/m² |
| Paint Coating | Top: 10 – 30μm, Back: 5 – 15μm |
| Coil Weight | 3 – 10 Tons |
| Coil ID | 508mm / 610mm |
| Surface Finish | Glossy, Matte, Wrinkled, Wood Grain, Marble Pattern |
| Color Options | RAL Color Chart or Customized Colors |
| Certification | ISO, SGS, BV, CE |
| Stock Availability | 20,000+ Tons Per Month |
Chemical Composition
| Element | PPGI Steel Composition (%) |
| Carbon (C) | ≤ 0.12 |
| Manganese (Mn) | ≤ 0.50 |
| Phosphorus (P) | ≤ 0.03 |
| Sulfur (S) | ≤ 0.02 |
| Silicon (Si) | ≤ 0.03 |
Mechanical Properties
| Property | Value |
| Yield Strength (MPa) | 250 – 550 |
| Tensile Strength (MPa) | 270 – 650 |
| Elongation (%) | ≥ 16 |
| Hardness (HB) | 50 – 95 |
Coating & Paint Options
| Coating Type | Paint System | Features |
| Polyester (PE) | Standard Coating | Cost – effective, good flexibility |
| Silicone Modified Polyester (SMP) | Improved Durability | UV resistance, longer lifespan |
| High – Durability Polyester (HDP) | Advanced Protection | Anti – fading, corrosion – resistant |
| Polyvinylidene Fluoride (PVDF) | Premium Quality | Best weather and chemical resistance |
Equivalent Grades
| Standard | Equivalent Grade |
| ASTM | A653 |
| EN | DX51D, DX52D |
| JIS | G3302 |
| GB | Q195, Q235, Q345 |
Applications of PPGI Steel Coil
- Construction & Roofing – Wall panels, metal roofing, cladding
- Home Appliances – Refrigerators, washing machines, microwave ovens
- Automotive Industry – Car body panels, decorative parts
- Agricultural Use – Greenhouses, barns, storage buildings
- Furniture & Interior – Ceiling panels, partition walls, cabinets
Why Choose PPGI Steel Coil?
✔ Superior Corrosion & Weather Resistance
✔ Wide Range of Colors & Surface Finishes
✔ High Strength with Lightweight Properties
✔ Long-lasting Aesthetic Appeal
✔ Customizable for Various Industrial Uses
Application
Agricultural Modernization
Construction Engineering
Environmental Protection Engineering
Food Processing Industry
Intelligent Home Appliances
Medical and Health Field
New Energy Infrastructure







