5052 Marine Alloy Perforated Aluminum Sheet 1.5mm for Acoustic Ceiling Panel and Punched Aluminium Panel

This perforated aluminum sheet is punched from AA5052 magnesium-alloy coil, a grade chosen because it combines useful stiffness with genuine marine-grade corrosion resistance. Panels are produced on CNC turret presses that place every hole within a tenth of a millimetre, which matters when hundreds of modules have to line up into a continuous ceiling or screen.

Hole diameter, pitch and pattern angle are all selectable, so the open area can be dialled anywhere between 15 and 40 percent, and that single number is what decides how much sound energy passes through the panel into the cavity behind it. Combined with black acoustical fleece or mineral wool, the perforated face reaches a noise reduction coefficient of 0.65 to 0.85, which is why the material appears in offices, auditoriums, airports and classrooms where reverberation has to be controlled without losing a crisp architectural line.

The punching process is followed by levelling and deburring so no sharp edges remain, protecting installers and allowing the sheet to be handled without gloves. Panels can be supplied mill finish, powder coated in any RAL shade, PVDF coated for exterior use, or anodized where a metallic sheen is preferred.

• Acoustic Engineering: Controlled open area from 15 to 40 percent, matched with fleece backing, delivers an NRC of 0.65 to 0.85 for reverberation control.
• 5052 Marine Alloy: Magnesium-bearing substrate resists salt spray and humidity, so panels can be used on coastal facades and in swimming-pool halls.
• Precise Punching: CNC turret presses hold hole position within plus or minus 0.1mm, keeping long runs of modules perfectly aligned.
• Burr-Free Edges: Every sheet is levelled and deburred after punching, removing sharp rims that could injure installers or tear fleece.
• Pattern Flexibility: Round, square, slotted and hexagonal patterns are available, together with custom artwork masks and gradient perforation.
• Fire Performance: Aluminium core achieves Euroclass A2-s1,d0 and passes ASTM E84 with zero flame spread, suitable for egress routes.

Suspended ceiling tiles and linear ceiling baffles are the largest application, followed by wall absorbers in conference rooms, lecture theatres and open-plan offices. The same sheet is used for machine guards and safety enclosures, where the open area provides visibility while keeping hands away from moving parts, and for ventilation grilles, speaker grilles, filter supports and equipment screens.

On building exteriors it becomes sun screens, balustrade infill and car-park facade cladding, because the perforated pattern breaks up the visual mass of a large elevation while still allowing airflow through a plant room. Retail designers specify it for display backdrops and illuminated signage, and transport operators use it in bus and rail interiors for luggage rack panels and HVAC return grilles where both airflow and impact resistance are mandatory.

Every sheet is interleaved with kraft paper, fitted with corner protectors and stacked in a plywood crate that is banded for forklift handling; smaller ceiling modules are packed in cartons on pallets. Punching tools are checked at the start of each run and samples are measured for hole diameter, pitch, open area and burr height before the coil is released.

A dimensional report and the alloy certificate accompany each shipment, and powder-coated orders include adhesion and gloss readings. Panels can be cut, folded and powder coated again on site without exposing bare metal, because the alloy is homogeneous through the thickness.