Round Aluminum Sheet Disc Plate 1/1.2/2/2.5~6mm Thick Aluminium Discs 50~400mm
Round Aluminum Sheet Disc Plate 1/1.2/2/2.5~6mm Thick Aluminium Discs 50~400mm
Round Aluminum Sheet Disc Plate 1/1.2/2/2.5~6mm Thick Aluminium Discs 50~400mm
Round Aluminum Sheet Disc Plate 1/1.2/2/2.5~6mm Thick Aluminium Discs 50~400mm
Round Aluminum Sheet Disc Plate 1/1.2/2/2.5~6mm Thick Aluminium Discs 50~400mm
Round Aluminum Sheet Disc Plate 1/1.2/2/2.5~6mm Thick Aluminium Discs 50~400mm
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Round Aluminum Sheet Disc Plate 1/1.2/2/2.5~6mm Thick Aluminium Discs 50~400mmRound Aluminum Sheet Disc Plate 1/1.2/2/2.5~6mm Thick Aluminium Discs 50~400mmRound Aluminum Sheet Disc Plate 1/1.2/2/2.5~6mm Thick Aluminium Discs 50~400mmRound Aluminum Sheet Disc Plate 1/1.2/2/2.5~6mm Thick Aluminium Discs 50~400mmRound Aluminum Sheet Disc Plate 1/1.2/2/2.5~6mm Thick Aluminium Discs 50~400mmRound Aluminum Sheet Disc Plate 1/1.2/2/2.5~6mm Thick Aluminium Discs 50~400mm

Round Aluminum Sheet Disc Plate 1/1.2/2/2.5~6mm Thick Aluminium Discs 50~400mm

HomeDIYer
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By HomeDIYer®

Price:
$3.36 USD
Stock:
In stock (500 units), ready to be shipped

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Description

Round Aluminum Sheet Disc Plate — Flat Aluminium Circles for Fabrication & DIY

When a project calls for a flat, round metal blank that cuts cleanly, holds its shape, and resists corrosion without adding unnecessary weight, finding the right disc in the right size is half the battle. These round aluminum sheet disc plates are stocked in a wide matrix of thicknesses and diameters so fabricators, hobbyists, and tradespeople can order exactly what they need — no cutting, no waste.

Each round aluminum sheet disc plate is cut from aluminum alloy sheet stock. Thickness options span 1 mm through 6 mm (approximately 0.04 in – 0.24 in), and diameters range from 50 mm to 400 mm (approximately 2 in – 15.75 in). Edges are machine-cut and may require light deburring before use. Discs are available in single pieces or multi-piece packs to suit both one-off repairs and batch production runs.

Typical applications include speaker enclosure baffles, heat-shield blanks, custom gasket templates, decorative medallions, and round base plates for welding fixtures. The lightweight aluminum construction also makes these discs a practical choice for aerospace-adjacent hobby builds, RC vehicle components, and architectural accent panels where a round aluminum disc plate is specified.

⚙️ Compatibility: Suitable for general aluminum fabrication. Compatible with standard aluminum welding (TIG/MIG), anodizing, powder coating, and CNC machining processes. Verify alloy requirements with your process engineer before ordering.

✅ Key Features of These Round Aluminum Sheet Disc Plates

  • 🔩 Wide Thickness Range — Available in 1 mm, 1.2 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, and 6 mm to match structural or decorative load requirements.
  • 📏 Multiple Diameter Options — Choose from 50 mm, 80 mm, 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, and 400 mm for precise fitment without secondary cutting.
  • ⚖️ Lightweight Aluminum Construction — Low density reduces overall assembly weight compared to steel or brass discs of equivalent dimensions.
  • 🛡️ Corrosion-Resistant Surface — Aluminum naturally forms a protective oxide layer, making these discs suitable for indoor and moderately humid outdoor environments.
  • ✂️ Machine-Cut Edges — Discs are sheared or punched to a consistent round profile; light deburring recommended before final assembly.
  • 📦 Flexible Pack Quantities — Order 1, 2, 4, 5, 10, 20, 25, or 50 pieces per variant to match project scale and reduce per-unit cost on larger runs.

📐 Technical Specifications — Round Aluminum Disc Plate

Material Aluminum alloy sheet
Thickness Range 1 mm – 6 mm (0.04 in – 0.24 in)
Diameter Range 50 mm – 400 mm (1.97 in – 15.75 in)
Shape Round / circular disc
Edge Finish Machine-cut; light deburring may be required
Surface Finish Mill finish (bare aluminum)
Corrosion Resistance Natural aluminum oxide layer
Pack Quantity Options 1, 2, 4, 5, 10, 20, 25, 50 pcs (see variant options)
Weight per Piece See variant options
Alloy Grade See variant options
Applicable Processes TIG/MIG welding, anodizing, powder coating, CNC machining

❓ Frequently Asked Questions

Which thickness should I choose for a structural base plate?

For load-bearing base plates or mounting flanges, 3 mm – 6 mm is typically recommended. Thinner options (1 mm – 2 mm) are better suited to decorative panels, heat shields, or lightweight covers where bending stiffness is less critical. If you are unsure, consult a structural engineer or refer to your project's material specification.

Can these aluminum discs be welded?

Yes. Aluminum alloy sheet is compatible with TIG and MIG welding processes using appropriate filler wire (commonly ER4043 or ER5356). Ensure the disc surface is clean and free of oxide before welding. Thicker discs (3 mm and above) are generally easier to weld without burn-through.

Are these discs suitable for outdoor use?

Bare aluminum forms a natural oxide layer that provides moderate corrosion resistance in typical outdoor environments. For prolonged exposure to salt spray, chemicals, or standing water, applying an anodized or powder-coated finish is recommended to extend service life.

What diameter should I select for a speaker baffle or enclosure?

Measure the internal opening of your speaker cabinet or the driver's cutout diameter, then select the next size up to allow for mounting overlap. Common driver sizes (6.5 in / 165 mm, 8 in / 200 mm) align closely with the 200 mm disc option. For tweeters or smaller drivers, the 100 mm or 150 mm discs are often appropriate.

Can I anodize or paint these discs after purchase?

Yes. The mill-finish surface accepts anodizing, powder coating, and liquid paint after proper surface preparation (degreasing and light sanding or etching). Anodizing provides a durable, decorative finish and further improves corrosion resistance. Confirm alloy compatibility with your anodizing service provider before processing.

How do I choose between ordering single pieces versus multi-piece packs?

Single-piece and small-quantity options (1–5 pcs) are ideal for prototyping, one-off repairs, or testing fitment before committing to a larger order. Multi-piece packs (10–50 pcs) offer a lower per-unit cost and are suited to batch production, classroom projects, or stocking a workshop. Select the quantity that matches your immediate need to avoid unnecessary inventory.

Do the discs require any finishing before use?

Machine-cut edges may have minor burrs from the shearing or punching process. A quick pass with a deburring tool, file, or fine sandpaper is recommended before handling or assembly to remove sharp edges and ensure a clean fit. The flat faces are mill-finish and generally require no additional preparation for most applications.

🛒 Select your Thickness, Diameter, and Quantity above, then add to cart.

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