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When your project demands a reliable, conductive, and workable metal blank, finding the right disc in the exact size can be a frustrating search. Whether you are a maker, jeweller, electrician, or fabricator, these solid pure copper disc blanks give you a clean, ready-to-use starting point without the waste of cutting from sheet stock.
Each solid pure copper disc blank is cut from solid copper plate, offering a purity typically above 99%. Discs are available in diameters ranging from 50mm to 300mm (approximately 2 in to 11.8 in) and in thicknesses from 0.3mm to 5mm (approximately 0.012 in to 0.197 in). The flat, smooth faces require minimal preparation before use.
These copper disc blanks suit a wide range of applications: crafting copper jewellery pendants and stamping blanks, fabricating electrical bus bars and grounding pads, creating decorative inlays for woodworking, and prototyping heat spreaders or thermal interface components in electronics repair and DIY builds.
| Material | Solid Pure Copper |
|---|---|
| Disc Diameter | 50mm / 55mm / 60mm / 65mm / 80mm / 100mm / 120mm / 150mm / 180mm / 200mm / 250mm / 300mm |
| Disc Thickness | 0.3mm / 0.4mm / 0.5mm / 0.6mm / 0.8mm / 1mm / 1.2mm / 1.5mm / 2mm / 2.5mm / 3mm / 3.5mm / 4mm / 5mm |
| Shape | Round / Circular Disc |
| Surface Finish | See variant options |
| Hole / Centre Bore | None (solid blank) |
| Pack Quantity | 1 Pcs or 2 Pcs (see variant options) |
| Typical Purity | ≥99% Cu |
| Hardness | See variant options |
| Weight per Piece | See variant options |
Measure the area you need to cover or the blank size required for your finished piece, then add a small margin for trimming or forming. For jewellery pendants, 50–65mm discs are common starting sizes. For electrical bus bars or grounding pads, select a diameter that matches your terminal footprint. Use the variant selector above to pick your exact diameter.
For light-duty grounding connections, 0.5–1mm thickness is typically sufficient. For higher-current bus bars or structural electrical contacts, 2–5mm discs provide the cross-sectional area needed to handle greater amperage without excessive resistance or heat build-up. Consult your circuit specifications before selecting.
Yes. Pure copper is a ductile metal that responds well to cold forming, stamping, and doming without cracking under normal workshop conditions. Thinner discs (0.3–0.8mm) are easier to form by hand or with basic tools, while thicker discs (2mm and above) require more force and are better suited to press or hydraulic forming.
Copper naturally oxidises when exposed to air and moisture, developing a patina that ranges from brown to green over time. This patina is a surface effect and does not compromise the structural or electrical integrity of the disc. For applications requiring a bright finish, apply a clear lacquer or store discs in a sealed, dry environment. For decorative use, the natural patina is often desirable.
Yes. Pure copper solders and brazes readily with standard copper-compatible fluxes and filler materials. Clean the surface with fine abrasive or flux before soldering to remove any surface oxide layer. These discs are compatible with lead-free solder, silver solder, and brazing rods commonly used in plumbing, electronics, and jewellery work.
If you need a single disc for a one-off project or to test a size before committing to a larger order, the 1 Pcs option is the practical choice. The 2 Pcs pack offers better value per disc and is useful when you need a spare, are making a matched pair, or want to practice a technique on one disc before working on the final piece.
Copper is one of the most thermally conductive common metals, making these discs well-suited as heat spreaders, thermal interface shims, or conductive inserts in DIY electronics cooling solutions. Thinner discs (0.3–1mm) work as shims between components, while thicker discs (2mm and above) can serve as small heatsink bases or conductive pads in custom builds.
