6061 Aluminum Sheet Plate — Flat Stock for Brackets, Panels & Fabrication Projects
Whether you're building a custom enclosure, fabricating a mounting bracket, or prototyping a structural component, finding flat aluminum stock in the exact size you need — without ordering a full sheet from a metal supplier — is a constant frustration for DIYers, hobbyists, and small-shop fabricators. These 6061 aluminum sheet plates are stocked in a wide range of ready-to-use dimensions so you can order exactly what your project calls for, without waste.
Each piece is cut from Aluminium Alloy 6061 flat plate stock. Sizes range from 50mm x 50mm (≈2" x 2") up to 300mm x 300mm (≈11.8" x 11.8"), with thickness options of 1mm (≈0.039"), 1.5mm (≈0.059"), 2mm (≈0.079"), 3mm (≈0.118"), 4mm (≈0.157"), 5mm (≈0.197"), and 6mm (≈0.236"). Quantity options per order range from 1 pc to 25 pcs, making it easy to stock up for a production run or grab a single piece for a one-off repair.
Typical applications include CNC router spoilboard shims, electronics enclosure panels, drone frame plates, heat sink blanks, custom shelf brackets, and general-purpose flat aluminum sheet for metalworking projects. The consistent flatness and clean-cut edges make these plates well-suited for use as aluminum flat bar stock substitutes in tight-tolerance DIY builds.
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Compatibility Note: These plates are cut from 6061 alloy stock and are compatible with standard aluminum machining, drilling, tapping, TIG/MIG welding, and anodizing processes. Verify your required dimensions against the variant options before ordering — sizes are listed as Length x Width x Thickness.
✅ Key Features of These 6061 Aluminum Sheet Plates
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🔩6061 Alloy Construction — Made from Aluminium Alloy 6061, a widely used structural aluminum grade known for its balance of strength, machinability, and corrosion resistance in fabrication and DIY metalworking projects.
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📐Wide Size Selection — Available in seven thickness options (1mm–6mm) and five footprint sizes (50×50mm to 300×300mm), giving you precise control over material volume without cutting down oversized sheet stock.
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⚖️Lightweight Flat Stock — Aluminum's low density (typically around 2.7 g/cm³) makes these plates significantly lighter than equivalent steel flat bar, reducing overall assembly weight in frames, enclosures, and mounting systems.
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🛠️Machinable & Weldable — 6061 aluminum is generally compatible with drilling, milling, tapping, and TIG/MIG welding, making it a practical choice for custom aluminum bracket fabrication and prototype builds.
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🌧️Natural Corrosion Resistance — The 6061 alloy's natural oxide layer provides baseline protection against moisture and oxidation, suitable for indoor and sheltered outdoor use; anodizing is recommended for prolonged outdoor exposure.
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📦Flexible Quantity Options — Order from 1 pc up to 25 pcs per variant, so you can match your purchase to a single prototype, a small batch run, or ongoing workshop stock without overpaying for material you don't need.
📐 Technical Specifications — 6061 Aluminum Flat Sheet Plate
| Material |
Aluminium Alloy 6061 |
| Alloy Grade |
6061 (T6 temper typical for this grade; confirm with supplier if temper-critical) |
| Available Sizes (L × W) |
50×50mm (≈2"×2"), 100×100mm (≈3.94"×3.94"), 150×100mm (≈5.9"×3.94"), 200×200mm (≈7.87"×7.87"), 300×300mm (≈11.8"×11.8") |
| Available Thickness |
1mm (≈0.039"), 1.5mm (≈0.059"), 2mm (≈0.079"), 3mm (≈0.118"), 4mm (≈0.157"), 5mm (≈0.197"), 6mm (≈0.236") |
| Quantity Options |
1 pc, 2 pcs, 4 pcs, 5 pcs, 10 pcs, 25 pcs |
| Surface Finish |
See variant options |
| Tensile Strength |
Typically ~310 MPa (≈45,000 psi) for 6061-T6 |
| Density |
Typically ~2.70 g/cm³ (0.098 lb/in³) |
| Machinability |
Good — compatible with drilling, milling, tapping, and welding |
| Corrosion Resistance |
Good for indoor/sheltered use; anodizing recommended for outdoor applications |
| Country of Origin |
Contact us to confirm |
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Heads up: Dimensions are listed in millimeters. If your project uses imperial measurements, use the inch equivalents provided in the specs table above. When in doubt about fit, contact us before ordering.
❓ Frequently Asked Questions
How do I choose the right size and thickness for my project?
Match the sheet dimensions to your cut-list: for example, a 100mm x 100mm (≈3.94" x 3.94") plate works well for small brackets or enclosure panels, while a 300mm x 300mm (≈11.8" x 11.8") plate suits larger structural gussets. For thickness, 1–2mm is generally sufficient for lightweight covers and shields; 3–4mm is typically used for structural brackets and frames; 5–6mm is recommended when load-bearing rigidity is required.
What is the tensile strength of 6061 aluminum?
6061-T6 aluminum alloy typically has an ultimate tensile strength of around 310 MPa (45,000 psi) and a yield strength of approximately 276 MPa (40,000 psi). Actual values may vary slightly by temper and supplier batch.
Can these aluminum sheets be used outdoors or in wet environments?
Yes. 6061 aluminum alloy generally offers good corrosion resistance due to its natural oxide layer. For prolonged outdoor or marine exposure, anodizing or painting is typically recommended to extend service life.
Are these sheets compatible with standard machining and fabrication processes?
6061 aluminum is widely regarded as one of the most machinable aluminum alloys. It is generally compatible with milling, drilling, tapping, bending, and welding (TIG/MIG). It also accepts anodizing and powder coating well.
How do I decide between 1 pc, 5 pcs, 10 pcs, or 25 pcs?
If you need a single prototype or repair piece, the 1 pc option is ideal. For small batch projects or workshop stock, 5–10 pcs typically offers a better per-piece value. The 25 pcs option is best suited for production runs or makerspace inventory.
What is the difference between 6061 and other common aluminum alloys like 5052?
6061 aluminum is generally stronger and more machinable than 5052, making it a better choice for structural parts, brackets, and components that require drilling or tapping. 5052 is typically preferred when superior formability and corrosion resistance in marine environments are the priority.
Can I weld or bend these aluminum sheet plates?
6061 aluminum can generally be welded using TIG or MIG processes. Bending is possible, though thicker plates (4mm and above) may require a press brake. Note that welding typically reduces local strength near the heat-affected zone; post-weld heat treatment may be needed for structural applications.
🛒 Select your size, thickness, and quantity above, then add to cart — ships from our US warehouse.
