3003 H44 perforated aluminum sheet is a corrosion-resistant, medium-strength metal panel widely used in architectural, decorative, and industrial applications. Because it offers an excellent balance of rust protection, easy punching, and cost-effectiveness, it is the top choice for outdoor facades, HVAC grilles, and ceiling panels.
This guide will explain the specifications, standard hole patterns, pricing factors, and how to buy directly from a reliable supplier like GNEE.
What is 3003 H44 Perforated Aluminum?
Alloy 3003: This is an aluminum-manganese alloy (Al-Mn). The added manganese makes it about 20% stronger than pure 1000 series aluminum. It is famous for its excellent rust resistance, making it ideal for outdoor and high-humidity environments.
Temper H44: In aluminum standard codes, "H4" means the metal is strain-hardened and coated (or painted). The second "4" means it is half-hard. This temper gives the sheet enough strength to stay flat after punching while still being easy to bend and form.
Perforation: We use CNC punching machines to press holes into the solid aluminum sheet. You can control the hole size, the distance between holes (pitch), and the open area to fit your specific needs for airflow, light control, or decoration.
Key Specifications of 3003 H44 Perforated Aluminum Sheet
Below is the standard specification table for 3003 H44 perforated aluminum sheets supplied by GNEE. All data can be customized based on your CAD drawings.
| Parameter | Specification Details |
| Material Grade | 3003 Aluminum Alloy |
| Temper | H44 (Half-hard, coated/stabilized) |
| Thickness Range | 0.5 mm – 6.0 mm |
| Standard Sheet Size | 1000×2000 mm, 1220×2440 mm (4x8 ft), 1500×3000 mm |
| Hole Types | Round, Slotted, Square, Hexagonal, Decorative |
| Hole Size (Diameter) | 0.5 mm – 25 mm (Custom sizes available) |
| Open Area | 10% – 60% (Depends on hole size and pitch) |
| Surface Treatment | Mill finish, Anodized, Powder Coated, PVDF |
Common Hole Patterns
The hole design determines how the sheet looks and performs. Here are the most common patterns we manufacture:
- Round Hole (Most Popular): Usually arranged in a 60-degree staggered pattern. It offers the strongest structure and is highly cost-effective. Perfect for ventilation and machine guards.
- Slotted Hole: Long oval holes. They are mainly used for sorting screens, grain drying, and industrial filtration. We can customize the LWD (Long Way of Design) and SWD (Short Way of Design).
- Square Hole: Provides a larger open area for maximum airflow. Often used as decorative grilles or air conditioning covers.
- Custom / Decorative: We can use CNC laser cutting or custom molds to create logos, tree patterns, or unique geometric designs for building facades.
GNEE provides thousands of ready-made punching molds to save your tooling costs. Tell us your required hole size and thickness, and our engineering team will send you a quick CAD layout and price.
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Price of 3003 H44 Perforated Aluminum Sheet
The general market price for 3003 H44 perforated aluminum sheets ranges from $2,500 to $4,500 per metric ton, depending on several project details.
We do not use a fixed price list because custom metal prices change daily. Here are the core factors that decide your final cost:
- Raw Material Cost (SMM): SMM aluminum ingot price, which fluctuates daily.
- Sheet Thickness: Thicker sheets use more aluminum material per square meter, so the price per sheet increases. However, very thin sheets (under 0.5mm) are hard to punch and may increase the processing defect rate.
- Hole Complexity: Standard 60° staggered round holes are the cheapest because we have existing molds. Custom patterns or extremely small micro-holes require new molds and slower machine speeds, which increases the processing fee.
- Surface Treatment:
- Mill finish (bare metal) is free.
- Powder coating adds a medium cost.
- PVDF coating (for 20-year outdoor use) is the most expensive.
- Order Quantity: Since there is a setup cost for the punching machine, ordering a full container (large volume) significantly reduces the unit price.
3003 H44 perforated sheets Applications
- Architectural Facades & Cladding: Used on the outside of commercial buildings. It provides sun shading, reduces indoor temperature, and makes the building look modern.
- HVAC & Ventilation Systems: Used as air conditioning grilles and exhaust vent covers. It allows air to flow freely while keeping birds, bugs, and large dust particles out.
- Acoustic Ceilings: Used in offices, airports, and train stations. The holes allow sound waves to pass through the metal and hit the sound-absorbing materials behind the ceiling.
- Industrial Filtration: Used as filter support cores in water treatment or oil pipelines.
Advantages of 3003 H44 Perforated Aluminum
- Rust-Proof: Unlike carbon steel, it will never red-rust, even in wet environments.
- Lightweight: It is only 1/3 the weight of stainless steel. This makes it very easy to install on high building walls and saves shipping costs.
- Cost-Effective: It is much stronger than 1060 pure aluminum but cheaper than 5052 marine-grade aluminum. It is the most balanced choice for 80% of standard projects.
- Great Flatness: Because it is H44 temper (half-hard), it does not easily bend or warp during the heavy impact of the punching machine.
How to Choose the Right Sheet?
Match Thickness to Function:
- If it is an indoor ceiling, 0.8 mm to 1.2 mm is enough.
- If it is an outdoor building facade that faces strong winds, choose 2.0 mm to 3.0 mm.
Match Hole Size to Purpose:
- For machine safety guards, the hole must be small enough (under 8mm) so human fingers cannot pass through.
- For air vents, choose larger square or hexagonal holes to get over 50% open area.
Choose the Right Surface Coating:
- For indoor use: Powder coating is perfect and cheap.
- For outdoor building walls facing rain and UV sunlight: You must choose PVDF coating or Anodizing to prevent color fading over time.
Why Choose GNEE as Your Supplier?
GNEE is a direct manufacturer of aluminum products with years of export experience.
- Strict Flatness Control: Punching always makes metal curl. We use advanced roller-leveling machines to ensure every single piece is 100% flat before shipping.
- Export Standard Packaging: We use waterproof kraft paper, plastic film, and strong wooden pallets tied with steel straps. Your goods will not be damaged by seawater or rough handling during ocean freight.
- ISO Certified: Full material test reports (MTC) are provided with every order.
Conclusion
The 3003 H44 perforated aluminum sheet is a lightweight, anti-rust, and highly customizable material. Whether you are building a modern exterior facade, a durable ventilation grille, or an industrial filter, it provides the perfect balance of strength and price. By understanding thickness, hole patterns, and surface treatments, you can easily source the right product for your business.
Stop wasting time with unverified suppliers. GNEE provides fast factory-direct pricing, CAD drawing support, and reliable global shipping.
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