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When your project demands a reliable, workable metal blank and generic hardware store stock just won't cut it, these solid pure copper disc blanks are built for makers, jewelers, electricians, and workshop builders who need exact dimensions without the waste of cutting from sheet. Whether you're stamping, etching, soldering, or fabricating, starting with a clean-cut copper circle saves time and material.
Each disc is cut from solid pure copper stock with no alloy filler. Thickness options range from 0.5 mm to 3 mm (approximately 0.020 in to 0.118 in), and diameter options span from 10 mm to 200 mm (approximately 0.39 in to 7.87 in). The flat, smooth surface is ready for immediate use with minimal prep.
Typical applications include copper disc blanks for jewelry making, electrical grounding pads, heat spreader shims for electronics, decorative metalwork inlays, and custom gasket fabrication for small-bore fittings. The wide size range makes these copper round plates suitable for both fine detail work and structural DIY builds.
| Material | Solid Pure Copper |
|---|---|
| Thickness Range | 0.5 mm – 3 mm (0.020 in – 0.118 in) |
| Diameter Range | 10 mm – 200 mm (0.39 in – 7.87 in) |
| Shape | Round / Circular Disc |
| Surface Finish | Flat, smooth-cut (mill finish) |
| Edge Condition | Burr-minimized, ready for use |
| Conductivity | High (pure copper) |
| Pack Quantity Options | 1 Pcs / 2 Pcs / 4 Pcs / 8 Pcs |
| Specific Thickness x Diameter | See variant options |
| Weight per Piece | See variant options |
Thinner discs (0.5 mm – 1 mm) are ideal for jewelry blanks, shims, and decorative inlays where flexibility and light weight matter. Mid-range thicknesses (1.2 mm – 2 mm) suit electrical grounding pads, heat spreaders, and general fabrication. Thicker discs (2.5 mm – 3 mm) are better for structural applications, heavy-duty gaskets, or projects requiring rigidity. If you are unsure, select the variant options above to compare sizes before adding to cart.
These are solid pure copper discs, not brass, bronze, or copper-plated steel. Pure copper provides the highest electrical conductivity and thermal transfer of any common copper product, making it the correct choice for electrical and heat-management applications. The natural reddish-orange color is characteristic of uncoated pure copper.
Copper does not rust. Over time, exposure to air and moisture causes copper to develop a patina — first darkening to a brown tone, then potentially forming a green verdigris layer. This patina is a natural protective oxide layer that actually slows further corrosion. For applications where a bright copper finish is required long-term, a clear lacquer or wax coating can be applied after purchase.
Yes. Pure copper is one of the most workable metals available. It solders easily with standard rosin-core or silver solder, drills cleanly with standard HSS or cobalt drill bits (use cutting fluid for best results), and stamps well with metal letter and design punches. Thinner discs (0.5 mm – 1 mm) can also be cut with heavy-duty scissors or tin snips if trimming is needed.
For pendants and small charms, 10 mm – 30 mm diameter discs in 0.5 mm – 1 mm thickness are the most popular choices. For larger statement pieces or cuff blanks, 50 mm – 80 mm diameters work well. The 0.5 mm and 0.8 mm thicknesses are easiest to dome, texture, and form by hand, while 1 mm – 1.5 mm provides more rigidity for pieces that need to hold their shape.
Yes. Pure copper has a thermal conductivity of approximately 385–400 W/m·K, making it one of the most effective heat spreader materials available. These discs are commonly used as CPU/GPU shim replacements, LED heat spreaders, and thermal interface layers in custom cooling builds. Select a thickness that matches your clearance requirements — 0.5 mm and 1 mm are the most common for electronics thermal management.
Each listing offers 1 Pcs, 2 Pcs, 4 Pcs, and 8 Pcs pack options. Select the Pack Quantity that matches your project needs. Ordering in larger packs (4 or 8 pieces) is cost-effective for batch projects such as jewelry production runs, multiple gasket replacements, or workshop stock. The price per piece decreases with larger pack quantities.
