RAL9016 Prepainted Galvanized Steel Coil with 0.1–1.2mm Thickness and Z30–Z40 Coating for Roofing and Fencing
RAL9016 prepainted galvanized steel coil (PPGI coil) is designed for construction, roofing, fencing, corrugated sheet manufacturing, and industrial fabrication applications requiring corrosion resistance and decorative surface performance.
The product uses galvanized steel substrate combined with prepainted coating technology to provide:
- Surface corrosion protection
- Stable coating adhesion
- Processing compatibility
- Decorative appearance consistency
This steel coil supports bending, cutting, punching, welding, and decoiling services for industrial manufacturing and building material production.
Common substrate grades include:
- SGCC
- DX51D
The product is suitable for indoor and outdoor engineering environments where lightweight coated steel materials are required.
Traditional untreated carbon steel is vulnerable to:
- Surface oxidation
- Humidity exposure
- Outdoor weathering
- Rust formation during transportation and installation
In roofing and structural fabrication applications, manufacturers also require:
- Stable coating appearance
- Coil processing efficiency
- Consistent sheet thickness
- Easy roll forming and bending performance
To improve corrosion resistance and surface durability, galvanized steel coils with organic coating systems are widely used in construction and industrial manufacturing.
This RAL9016 prepainted galvanized steel coil solution combines:
- Zinc-coated corrosion protection
- Organic color coating system
- Coil-forming compatibility
- Fabrication flexibility
Key features include:
- Galvanized substrate with Z30–Z40 coating
- RAL customized color support
- Full hard mechanical performance
- Suitable for corrugated sheet production
- Compatible with automated roll-forming lines
Processing services available:
- Cutting
- Welding
- Bending
- Punching
- Decoiling
The prepainted surface reduces additional painting requirements after fabrication, improving production efficiency for roofing and structural applications.
| Item | Specification |
|---|---|
| Product Name | Prepainted Galvanized Steel Coil (PPGI) |
| Thickness | 0.1–1.2 mm |
| Zinc Coating | Z30–Z40 |
| Grade | SGCC / DX51D |
| Standard | ASTM / AISI / JIS / EN |
| Surface Color | RAL9016 / Customized RAL Colors |
| Hardness | Full Hard |
| Tolerance | ±1% |
| Processing Service | Cutting / Bending / Welding / Punching / Decoiling |
- Corrugated roofing sheets
- Sandwich panel systems
- Wall cladding panels
- Container panels
- Equipment covers
- Ventilation systems
- Fencing systems
- Temporary construction barriers
- Steel structure accessories
- Roll forming production
- Pipe manufacturing
- Sheet metal fabrication
PPGI steel coil combines galvanized steel substrate with organic surface coating layers.
The protection mechanism includes:
The galvanized layer provides sacrificial corrosion protection:
- Zinc reacts before steel substrate corrosion occurs
- Helps reduce rust propagation
- Improves outdoor durability
The prepainted surface creates an additional barrier against:
- Moisture
- UV exposure
- Atmospheric oxidation
The full hard substrate supports:
- Roll forming
- Bending
- Corrugated sheet production
- Structural fabrication
This structure allows both decorative appearance and corrosion resistance in industrial environments.
| Application | Recommended Thickness |
|---|---|
| Corrugated roofing sheet | 0.12–0.5 mm |
| Fencing systems | 0.3–0.8 mm |
| Structural panels | 0.6–1.2 mm |
- Z30–Z40 → Standard indoor/outdoor applications
- Z80–Z120 → Humid or industrial environments
- Z180+ → Long-term outdoor exposure
RAL9016 is commonly used for:
- Clean architectural appearance
- Industrial roofing systems
- Commercial wall panels
Customized RAL colors are suitable for branding or decorative requirements.
For applications involving:
- Heavy bending
- Deep roll forming
- Complex punching
coating flexibility and substrate hardness should be evaluated before production.
Galvanized steel coil only includes zinc coating, while PPGI adds an organic painted surface layer for additional protection and decorative appearance.
Yes. RAL9016 is widely used in roofing, wall panels, and fencing systems when combined with galvanized substrate protection.
Yes. Customized RAL color options are available according to project requirements and production specifications.
Construction, roofing manufacturing, industrial fabrication, fencing production, and container manufacturing industries commonly use PPGI materials.
Yes. The material supports cutting, welding, punching, bending, and decoiling services for fabrication applications.
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