Aluminum Sheet Plate Round Blank Discs Thick 0.5mm -10mm Diameter Ø50mm - Ø300mm

Choose 1060 Aluminum if you need to bend, spin, or form the disc without cracking — it's the softest and most workable of the three. Choose 5020 Aluminum if the disc will be exposed to moisture, salt air, or outdoor conditions, as it offers improved corrosion resistance. Choose 6061 Aluminum if you need the highest structural strength, such as for load-bearing brackets, structural spacers, or parts that will be machined to tight tolerances.

Thinner discs (0.5mm–1mm) are suited for lightweight covers, decorative applications, and gaskets. Mid-range thicknesses (1.2mm–3mm) work well for general fabrication, spacers, and heat sinks. Thicker discs (4mm–10mm) are appropriate for structural components, machined parts, and applications requiring rigidity. If you're unsure, consider the load, the fastener size, and whether the disc will be further machined.

Yes. All three alloy grades — 1060, 5020, and 6061 — can be anodized. 6061 typically produces the most consistent anodized finish due to its alloy composition. Powder coating is also compatible with all grades after proper surface preparation (degreasing and etching). Note that the discs arrive in mill finish and are not pre-treated.

Yes. All three grades machine well with standard carbide or HSS tooling. 1060 is the easiest to machine but may produce longer chips; use appropriate chip-breaking techniques. 5020 and 6061 both machine cleanly with standard feeds and speeds. Ensure the disc is securely fixtured before machining, especially for thinner gauges.

Select a diameter slightly larger than your finished part size to allow for machining, drilling, or trimming. For example, if your finished part needs to be Ø95mm, select the Ø100mm disc. Available diameters are Ø50, 60, 80, 100, 120, 150, 200, and 300mm. If your required size falls between two options, always round up to the next available diameter.

1060 Aluminum is commercially pure aluminum (99.6% Al) with good general corrosion resistance in dry indoor environments. 5020 Aluminum is a magnesium-alloyed grade specifically formulated for improved resistance to saltwater and marine atmospheres. If your application involves outdoor exposure, coastal environments, or contact with moisture over time, 5020 is the more appropriate choice.

Pack quantity varies by the size variant selected. Smaller and thinner discs are available in packs of 2, 3, or 5 pieces. Larger and thicker discs are typically sold as single pieces. The exact quantity is shown in the Qty(pcs) variant selector above the Add to Cart button — please confirm your selection before ordering.