Perforated aluminium plate
12/30 2025
Perforated aluminium plate is a lightweight, corrosion‑resistant sheet metal that has been punched or laser‑cut with a pattern of holes, slots, or decorative shapes. It combines structural strength with excellent airflow, drainage, and visual transparency, making it a versatile choice for both industrial and architectural applications.
Perforated aluminium plate is a durable, lightweight metal sheet with precision‑cut holes that deliver excellent strength‑to‑weight performance, corrosion resistance, and versatile design options. Ideal for facades, ventilation panels, filters, safety guards, acoustic ceilings, and decorative elements, these plates are available in various alloys, thicknesses, hole patterns, and finishes. With high formability, easy fabrication, and low maintenance, perforated aluminium plate offers a cost‑effective, long‑life solution for modern construction, manufacturing, transport, and interior design projects.
Features of Perforated Aluminium Plate
- Lightweight with high strength‑to‑weight ratio
- Superior corrosion resistance in most environments
- Wide range of hole patterns, shapes, and open area ratios
- Excellent ventilation, drainage, and light diffusion
- Good acoustic performance when used with backing materials
- Easy to cut, bend, weld, and powder‑coat or anodize
- 100% recyclable and environmentally friendly
Typical Applications
- Building facades, sunscreens, and cladding panels
- Interior ceilings, wall panels, and feature partitions
- Ventilation grilles, HVAC covers, and air intake screens
- Machinery guards, safety barriers, and protective covers
- Filters, sieves, and sorting screens in processing plants
- Sound‑absorbing panels in studios, halls, and auditoriums
- Stair treads, balustrades, and balcony infill panels
- Automotive and rail components, luggage racks, and trim
Common Alloys and Tempers
Different projects require different combinations of strength, formability, and corrosion resistance. Below are common alloy choices for perforated aluminium plate.
Typical Alloys
| Alloy Series | Common Grades | Characteristics | Typical Uses |
|---|
| 1xxx | 1050, 1100 | Very high purity, excellent corrosion, soft | Decorative panels, chemical industry |
| 3xxx | 3003, 3105 | Good corrosion, moderate strength | HVAC covers, general sheet metal |
| 5xxx | 5005, 5052, 5754 | Excellent marine corrosion, good strength | Exterior cladding, marine, transport |
| 6xxx | 6061, 6082, 6063 | Heat‑treatable, high strength, structural | Load‑bearing panels, frames, engineered parts |
Typical Tempers
| Temper | Description | Performance Note |
|---|
| O | Annealed, very soft | Maximum formability, low strength |
| H14/H24 | Strain‑hardened, partially annealed | Balanced strength and formability |
| H32/H34 | Strain‑hardened, stable properties | Higher strength, reduced but adequate formability |
| T4 | Solution heat‑treated, naturally aged | Good formability with moderate strength |
| T6 | Solution heat‑treated, artificially aged | High strength for structural applications |
Representative Chemical Composition
Values below are typical ranges according to common international standards. Exact composition depends on the chosen alloy and standard.
Example: Alloy 5052 (Weight %)
| Element | Min (%) | Max (%) |
|---|
| Mg | 2.2 | 2.8 |
| Cr | 0.15 | 0.35 |
| Fe | — | 0.40 |
| Si | — | 0.25 |
| Cu | — | 0.10 |
| Mn | — | 0.10 |
| Zn | — | 0.10 |
| Al | Balance | Balance |
Example: Alloy 6061 (Weight %)
| Element | Min (%) | Max (%) |
|---|
| Mg | 0.8 | 1.2 |
| Si | 0.4 | 0.8 |
| Cu | 0.15 | 0.40 |
| Cr | 0.04 | 0.35 |
| Fe | — | 0.70 |
| Mn | — | 0.15 |
| Zn | — | 0.25 |
| Ti | — | 0.15 |
| Al | Balance | Balance |
Hole Patterns and Geometries
The perforation pattern directly affects strength, airflow, light transmission, and visual effect.
Common Hole Shapes
| Hole Shape | Typical Use Case | Visual Effect |
|---|
| Round | General purpose, filters, guards | Clean, neutral, high open area |
| Square | Industrial screens, sieves | Technical, strong lines |
| Slotted/Oblong | Ventilation, drainage, cable routing | Directional airflow and screening |
| Hexagonal | High‑flow filters, decorative facades | Honeycomb, modern appearance |
| Decorative | Branding, architectural design elements | Custom patterns and logos |
Typical Hole Dimensions and Pitch
| Parameter | Typical Range | Notes |
|---|
| Hole diameter (d) | 1.0–30.0 mm | Smaller holes for filtration, larger for grilles |
| Slot width | 1.0–5.0 mm | Often combined with longer slot length |
| Slot length | 5.0–100.0 mm | Dictates direction of flow and visibility |
| Center‑to‑center pitch (p) | 1.5d – 4d | Controls open area and mechanical strength |
| Open area | 10–60 % | Higher open area improves flow but reduces rigidity |
Technical Specifications
Dimensions and tolerances can be tailored to project requirements. The following table gives representative values.
Dimensional Range
| Parameter | Typical Range |
|---|
| Plate thickness | 0.5 – 12.0 mm |
| Standard width | 500 – 2000 mm |
| Standard length | 1000 – 6000 mm |
| Customized panel size | Up to 2000 × 8000 mm (on request) |
| Flatness tolerance | As per EN / ASTM or customer spec |
Mechanical Properties (Representative Values)
Actual values depend on alloy, temper, and thickness.
| Alloy & Temper | Tensile Strength Rm (MPa) | Yield Strength Rp0.2 (MPa) | Elongation A50 (%) |
|---|
| 3003‑H14 | 130–180 | 95–145 | 5–10 |
| 5052‑H32 | 210–260 | 130–215 | 7–12 |
| 5754‑H22 | 190–240 | 120–180 | 6–12 |
| 6061‑T6 | 260–310 | 240–280 | 8–12 |
Physical Properties of Aluminium
| Property | Typical Value |
|---|
| Density | ~2.70 g/cm³ |
| Melting range | 580–660 °C (alloy‑dependent) |
| Thermal conductivity | 120–180 W/m·K |
| Electrical conductivity | 35–40 MS/m (alloy‑dependent) |
| Coefficient of expansion | ~23 × 10⁻⁶ /K |
Performance Characteristics
Corrosion Resistance
| Alloy Series | Corrosion Behaviour | Typical Environment |
|---|
| 1xxx / 3xxx | Excellent general corrosion resistance | Indoor, urban, mild industrial |
| 5xxx | Outstanding, including marine exposure | Coastal, marine, chemical plants |
| 6xxx | Good, improved with coating/anodizing | Structural, transport, outdoor |
Acoustic and Ventilation Performance
| Parameter | Influence |
|---|
| Open area (%) | Higher values improve airflow and sound passage |
| Hole diameter and spacing | Fine holes for high‑frequency control, larger for low‑resistance airflow |
| Panel thickness | Thicker plates reduce transmission loss but enhance rigidity |
| Backing materials (insulation, fabric) | Improve sound absorption and reduce reverberation |
Surface Finishes
Proper finishing enhances lifespan, appearance, and performance.
| Finish Type | Appearance | Functional Benefit |
|---|
| Mill finish | Natural, slightly matte metallic | Cost‑effective, good base for coating |
| Anodized (clear/coloured) | Hard, durable oxide layer | Improved corrosion and wear resistance |
| Powder coating | Wide colour range, uniform surface | UV protection, branding, aesthetics |
| PVDF coating | High‑durability architectural finish | Excellent weather and colour stability |
| Brushed / polished | Directional or mirror‑like sheen | Decorative and high‑end applications |
Fabrication and Processing
Perforated aluminium plate can be supplied as‑produced or further processed to suit installation needs.
| Process | Capability Description |
|---|
| Cutting | Shearing, laser, waterjet, CNC routing |
| Forming & bending | Folds, trays, channels, curved panels |
| Rolling | Cylinders for filters, silencers, guards |
| Welding | MIG/TIG and spot welding in compatible alloys |
| Punching & notching | Mounting holes, fixing points, edge shaping |
| Edge treatments | Deburring, edge trimming, frame integration |
Advantages Compared with Other Materials
| Criteria | Perforated Aluminium | Steel / Stainless | Plastics / Composites |
|---|
| Weight | Very light | Medium to heavy | Very light |
| Corrosion resistance | High to excellent | Moderate (steel) / very high (SS) | Good but ageing/UV issues |
| Strength‑to‑weight | Excellent | Good | Moderate |
| Fire behaviour | Non‑combustible | Non‑combustible | Often combustible |
| Recyclability | 100% and high scrap value | 100% | Limited or complex |
| Aesthetic flexibility | Very high | High | High but less durable outdoors |
Choosing the Right Perforated Aluminium Plate
When selecting perforated aluminium plate for a project, parameters to define include:
- Alloy and temper to balance strength, formability, and corrosion resistance
- Thickness and panel size to meet structural and handling requirements
- Hole shape, size, pitch, and open area to match airflow, privacy, and aesthetic needs
- Surface finish to achieve the desired durability and appearance in the target environment
- Any secondary fabrication, such as folding, framing, or mounting hole patterns
By specifying these aspects clearly, customers can obtain perforated aluminium plates that integrate seamlessly into architecture, machinery, and product designs while delivering long‑term performance, functionality, and visual impact.
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