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When your project demands a reliable, conductive, and corrosion-resistant metal blank, finding the right size off the shelf is rarely straightforward. Whether you are a hobbyist jeweler, an electronics enthusiast, or a hands-on fabricator, these solid pure copper disc blanks give you a clean, ready-to-use starting point without the hassle of cutting raw sheet stock yourself.
Each disc is cut from solid pure copper (typically 99%+ Cu), available in wall thicknesses of 0.5 mm, 0.8 mm, 1 mm, 1.5 mm, 2 mm, and 3 mm (approximately 0.020"–0.118"), and in diameters ranging from 10 mm to 200 mm (approximately 0.39"–7.87"). The smooth, flat surface is suitable for further machining, stamping, etching, or direct use as-is.
Typical applications include DIY copper jewelry blanks for stamping and enameling, custom electrical contact discs and bus bar components, heat spreader shims for electronics cooling, decorative inlay work in woodworking, and craft metalworking projects requiring a precise round copper disc blank.
| Material | Solid Pure Copper (typically 99%+ Cu) |
|---|---|
| Thickness Range | 0.5 mm / 0.8 mm / 1 mm / 1.5 mm / 2 mm / 3 mm (approx. 0.020"–0.118") |
| Diameter Range | 10 mm – 200 mm (approx. 0.39" – 7.87") |
| Shape | Round disc / blank |
| Surface Finish | Mill finish, smooth flat faces |
| Color | Bright copper / reddish-orange |
| Electrical Conductivity | See variant options |
| Thermal Conductivity | See variant options |
| Weight per Piece | See variant options |
| Quantity per Order | 1 Pcs or 2 Pcs (see variant options) |
| Suitable Processes | Stamping, etching, soldering, brazing, machining, polishing |
Thinner discs (0.5 mm–1 mm) are well-suited for jewelry blanks, decorative stamping, and lightweight electrical contacts. Medium thicknesses (1.5 mm–2 mm) work well for heat spreader shims, structural inlays, and moderate-duty electrical components. The thickest option (3 mm) is appropriate for heavy-duty bus bars, thick shims, and applications requiring rigidity. If you are unsure, consider the mechanical load and whether the disc needs to be bent or remain flat.
Measure the opening or recess your disc needs to fit, then select the closest diameter available. For jewelry stamping, common starter sizes are 20 mm–50 mm. For electronics heat spreaders, match the diameter to your component footprint. For decorative inlays, measure your routed pocket and choose the matching disc diameter.
Pure copper is a relatively soft, ductile metal. It is not intended for load-bearing structural applications. However, it performs well in applications where its conductivity, thermal properties, or corrosion resistance are the primary requirements. For structural parts, consider copper alloys such as brass or bronze instead.
Copper naturally develops a protective oxide layer (patina) that slows further corrosion in most indoor and moderate outdoor environments. It is not suitable for prolonged immersion in strongly acidic or alkaline solutions without protective coating. For marine or highly corrosive environments, additional sealing or plating is recommended.
Yes. Pure copper solders and brazes readily with standard copper-compatible fluxes and solder alloys (e.g., lead-free tin-silver-copper or traditional tin-lead). Ensure the surface is clean and free of oxidation before soldering for the strongest joint. Light sanding or flux application before heating is recommended.
Absolutely. These copper disc blanks are a popular choice for hand-stamped jewelry, enameling, and metal art projects. The soft, workable nature of pure copper makes it easy to stamp, texture, and shape. After stamping, you can apply a liver of sulfur patina, polish to a bright finish, or seal with a clear lacquer to preserve the appearance.
The Amount variant lets you choose how many discs you receive per order. Selecting "1 Pcs" gives you a single disc, while "2 Pcs" gives you two discs of the same size. Larger or thicker discs are typically offered in the 1 Pcs option due to their size and weight, while smaller discs are available in both quantities.
