Aluminum coil for extruded panels is a flat-rolled aluminum product. It serves as the raw material for manufacturing building panels, trim components, and architectural systems. The coil format allows efficient processing through extrusion, stamping, and roll-forming equipment.


This product comes in various alloys and tempers. Each type matches specific end-use requirements. Common applications include roofing panels, wall cladding, gutter systems, and decorative trim elements.
Common Alloy Types
3003 Aluminum Coil

3003 aluminum coil contains manganese as the main alloying element. It offers excellent formability and corrosion resistance. This alloy works well for general building applications where moderate strength is sufficient. The material forms easily into complex panel shapes without cracking.
Typical uses include roofing panels, flashing components, and general trim work. The alloy accepts paint and anodized finishes readily.
3004 Aluminum Coil

3004 aluminum coil adds magnesium to the manganese base. This combination increases strength while maintaining good formability. The alloy performs well in applications requiring higher structural integrity.
Common specifications include thickness from 0.28 mm to 0.35 mm and width from 1000 mm to 2200 mm. Applications include beverage can bodies and building panel systems.
3105 Aluminum Coil

3105 aluminum coil balances manganese and magnesium content. It provides good strength with excellent forming characteristics. This alloy is ideal for pre-painted applications and color-coated products.
Standard specifications range from 0.40 mm to 1.5 mm thickness. Width options typically span 1000 mm to 1500 mm. The alloy serves color-coated coils, window blinds, and downspout systems.
Mechanical Properties by Alloy and Temper
| Alloy | Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Typical Uses |
|---|---|---|---|---|---|
| 3003 | O | 110 | 40 | 28 | Deep drawing, complex forming |
| 3003 | H14 | 160 | 130 | 8.3 | Roofing panels, general trim |
| 3003 | H24 | 160 | 130 | 6.0 | Wall panels, gutter systems |
| 3004 | H34 | 240 | 200 | 6 | Can bodies, structural panels |
| 3105 | O | 120 | 48 | 20 | Color-coated base material |
| 3105 | H14 | 170 | 150 | 2.7 | Decorative panels, blinds |
| 3105 | H24 | 170 | 140 | 5.6 | Pre-painted building panels |
Standard Specifications
Thickness Options
| Thickness (mm) | Common Applications | Processing Notes |
|---|---|---|
| 0.25–0.40 | Light trim, flashing | Easy to cut and bend |
| 0.40–0.70 | Standard wall panels | Balanced strength and weight |
| 0.70–1.20 | Roofing panels, gutters | Good structural integrity |
| 1.20–2.00 | Heavy-duty panels | High load-bearing capacity |
| 2.00–3.00 | Structural components | Maximum rigidity |
Width and Coil Specifications
| Parameter | Standard Range | Custom Options |
|---|---|---|
| Width | 500–2000 mm | Slitting services available |
| Inner Diameter | 300 mm, 400 mm, 500 mm, 508 mm | 150 mm, 200 mm for small coils |
| Outer Diameter | 800–2000 mm | Jumbo coils for high-volume users |
| Coil Weight | 1–10 tons | Custom weight options |
Surface Finish Types

Mill Finish
Mill finish aluminum coil shows the natural metallic surface. It offers basic corrosion protection. This finish suits applications where appearance is secondary to function. Examples include hidden structural panels and industrial components.
Anodized Finish

Anodized aluminum coil receives an electrochemical treatment. The process creates a hard oxide layer. This finish provides excellent corrosion resistance and decorative appeal.
| Property | Specification |
|---|---|
| Coating Thickness | 5–25 microns |
| Color Options | Silver, champagne, black, bronze |
| Salt Spray Resistance | 1000 hours |
| Warranty Period | 10–15 years |
PE Polyester Coated

PE polyester coated aluminum coil features a painted surface. The coating offers color variety and weather protection. This finish suits interior and moderate exterior applications.
| Property | Specification |
|---|---|
| Coating Thickness | 15–25 microns |
| Color Options | 1000+ RAL colors |
| Salt Spray Resistance | 500 hours |
| Warranty Period | 5–8 years |
PVDF Coated

PVDF coated aluminum coil uses premium fluoropolymer paint. This coating delivers superior weather resistance and color retention. It is ideal for high-end architectural applications.
| Property | Specification |
|---|---|
| Coating Thickness | 25–35 microns |
| Finish Options | Metallic, wood grain, stone patterns |
| Salt Spray Resistance | 3000 hours |
| Warranty Period | 15–25 years |
Embossed Finish
Embossed aluminum coil features textured patterns on the surface. Common patterns include orange peel, diamond, and five-bar designs. This finish improves rigidity and provides anti-slip properties.
Key Product Types
1. Trim Coil

Trim coil is narrow-width aluminum coil. Widths typically range from 200 mm to 600 mm. This product is used for fascia boards, soffits, and corner trim. It comes in various colors to match siding and roofing materials.
2. Gutter Coil

Gutter coil is designed for rainwater collection systems. Standard widths are 11 inches and 15 inches. The material is typically 0.70 mm to 1.00 mm thick. It forms seamless gutters on-site using roll-forming machines.
3. Roofing Coil

Roofing coil produces standing seam and corrugated panels. Thickness ranges from 0.40 mm to 1.20 mm. The material withstands weather exposure and thermal expansion. Pre-painted options match architectural color schemes.
4. Flashing Coil

Flashing coil creates waterproof barriers at roof joints and wall intersections. It is typically 0.40 mm to 0.80 mm thick. The material bends easily to fit complex angles and contours.
5. Architectural Panel Coil

This coil produces large wall and facade panels. Widths up to 2000 mm reduce seams and installation time. The material accepts various coatings for aesthetic and protective purposes.
Application Areas
Aluminum coil for extruded panels serves multiple building and industrial sectors:
- Residential Construction: Roofing panels, gutters, downspouts, soffits, fascia trim
- Commercial Buildings: Wall cladding, curtain walls, column covers, sunscreens
- Industrial Facilities: Roofing systems, wall panels, ventilation components
- Transportation: Trailer siding, truck bodies, bus interior panels
- Appliance Manufacturing: Refrigerator liners, dryer drums, decorative panels
- Signage: Channel letters, architectural signs, display systems
Processing Methods
Slitting
Slitting cuts wide master coils into narrower strips. This process produces trim coil and custom widths. Precision slitting ensures clean edges and consistent width tolerance.
Cut-to-Length
Cut-to-length lines flatten and cut coils into flat sheets. This process creates blanks for panel fabrication. Standard sheet sizes include 4×8 feet and custom dimensions.
Embossing

Embossing rollers create textured patterns on the coil surface. This process increases panel stiffness and provides decorative effects. Common patterns improve traction and hide minor surface imperfections.
Coating
Coating lines apply paint or protective films to the aluminum surface. Pre-painted coils eliminate field painting and ensure consistent quality. Coating options include polyester, PVDF, and specialty finishes.
Quality Standards and Certifications
| Standard | Description |
|---|---|
| ASTM B209 | Standard specification for aluminum sheet and plate |
| ASTM B487 | Coating thickness measurement |
| AAMA 2605 | High-performance organic coatings (PVDF) |
| AAMA 2604 | Superior performance organic coatings |
| ISO 9001 | Quality management systems |
| EN 1396 | Coated aluminum for architectural applications |
Why Choose Aluminum Coil for Extruded Panels?



This material offers several advantages for construction and manufacturing:
- Lightweight: Reduces structural load and transportation costs
- Corrosion Resistant: Withstands weather exposure without rust
- Formable: Bends and shapes without cracking
- Recyclable: 100% recyclable material supports sustainability
- Low Maintenance: Coatings provide long-term protection
- Versatile: Accepts various finishes and colors
- Cost Effective: Long service life reduces replacement costs
Ordering Guide
When you order aluminum coil for extruded panels, specify these parameters:
| Parameter | Your Selection |
|---|---|
| Alloy | 3003, 3004, 3105, or other |
| Temper | O, H14, H24, H34, etc. |
| Thickness | Specify in mm |
| Width | Standard or custom slitting |
| Coil Weight | Per your handling equipment |
| Surface Finish | Mill, anodized, PE, PVDF, embossed |
| Color | RAL number or custom match |
| Inner Diameter | 300 mm, 400 mm, 500 mm, etc. |
Storage and Handling Tips
- Store coils indoors in dry conditions
- Keep temperature between 5°C and 35°C
- Avoid exposure to rain and humidity
- Use proper lifting equipment for heavy coils
- Stack coils vertically to prevent distortion
- Handle painted surfaces with clean gloves
- Rotate stock using first-in-first-out method
Aluminum Coil for Extruded Panels supplier – WORTHWILL
Aluminum coil for extruded panels provides a versatile solution for modern construction. Various alloys and tempers match specific performance requirements. Surface treatments extend service life and enhance appearance. Whether you need roofing material, wall cladding, or decorative trim, aluminum coil delivers reliable performance.
Contact suppliers with your project specifications. They can recommend the right alloy, temper, and finish for your application. Professional processing services ensure your material arrives ready for fabrication.