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When your project demands reliable conductivity and a clean, workable blank, finding the right copper disc in the exact thickness and diameter can be a real challenge. Whether you're a hobbyist fabricator, an electronics technician, or a small-workshop metalworker, these solid pure copper discs give you a ready-to-use blank that cuts, stamps, solders, and machines without fuss.
Each disc is cut from solid pure copper (Cu ≥99.9%), available in diameters ranging from 10mm to 200mm (approx. 0.39 in to 7.87 in) and thicknesses from 0.5mm to 5mm (approx. 0.02 in to 0.20 in). The flat, burr-minimized surface is suitable for immediate use or further finishing.
Typical applications include copper bus bar blanks for electrical panel work, decorative medallion and jewellery stamping, heat-spreader shims for electronics cooling, gasket and washer fabrication in plumbing or HVAC, and craft projects such as etching, enamelling, and patina art.
Delivers excellent electrical conductivity (~58 MS/m) and thermal conductivity (~385 W/m·K), making these discs ideal for electrical and heat-management applications.
Diameter options from 10mm to 200mm and thickness from 0.5mm to 5mm let you match the exact blank size your project requires without custom cutting.
Annealed-grade copper is soft enough to stamp, drill, and bend, yet rigid enough to hold shape as a shim, gasket, or decorative piece.
Copper naturally forms a protective oxide layer that resists moisture and mild chemical exposure, extending service life in indoor and semi-exposed environments.
Available in packs from 1 pc up to 50 pcs so you can stock up for production runs or order a single piece for prototyping — priced per pack.
Flat, clean-cut discs with minimal burr require little to no prep work before soldering, etching, or assembly into your finished component.
| Material | Pure Copper (Cu ≥99.9%) |
|---|---|
| Diameter Range | 10mm – 200mm (0.39 in – 7.87 in) |
| Thickness Range | 0.5mm – 5mm (0.02 in – 0.20 in) |
| Shape | Round / Disc (blank, no hole) |
| Surface Finish | Mill finish, flat, minimal burr |
| Electrical Conductivity | ~58 MS/m (IACS 100%) |
| Thermal Conductivity | ~385 W/m·K |
| Hardness | See variant options (annealed or as-rolled) |
| Pack Quantity | 1 / 2 / 3 / 4 / 5 / 6 / 9 / 10 / 15 / 20 / 25 / 30 / 50 pcs (select above) |
| Weight per Piece | See variant options |
Select the diameter that matches or slightly exceeds your finished part size — you can always trim down but not add material. For thickness, consider the mechanical load: 0.5–1mm is suitable for shims, gaskets, and decorative work; 1.5–3mm suits structural blanks and bus bar sections; 4–5mm is appropriate for heavy-duty heat spreaders or thick washers. Use the variant selectors above to pick your exact combination.
These discs are solid pure copper with a copper content of ≥99.9% (equivalent to C11000 / ETP copper). They are not brass, bronze, or a copper-plated material. This ensures maximum electrical and thermal conductivity for demanding applications.
Pure copper is a relatively soft, ductile metal with a tensile strength of approximately 200–250 MPa in the annealed state. It is well-suited for gaskets, shims, electrical contacts, and decorative parts. For load-bearing structural applications requiring higher strength, a copper alloy (such as brass or bronze) may be more appropriate. Thicker variants (3–5mm) offer greater rigidity for their diameter.
Copper naturally oxidises when exposed to air and moisture, forming a thin brownish or greenish patina (verdigris). This patina is actually protective and slows further corrosion. For applications where a bright finish must be maintained, apply a clear lacquer or store in a dry, sealed environment. For outdoor or high-humidity use, consider periodic cleaning with a mild copper cleaner.
Yes. Pure copper is one of the most solderable metals available. Use a rosin-based or no-clean flux with standard tin-lead or lead-free solder for electronics work. For plumbing or HVAC applications, silver brazing with an appropriate flux works well. Lightly sand or clean the surface with isopropyl alcohol before soldering to remove any surface oxide for best results.
Yes, pure copper machines well with standard carbide tooling using appropriate cutting speeds and lubrication — use a copper-rated cutting fluid and reduce spindle speed compared to steel. Note that copper is highly reflective, which can make CO₂ laser cutting challenging; fibre lasers are generally more effective for copper. For drilling, use sharp HSS or carbide bits with a slow feed rate to avoid work-hardening.
Each variant combines a specific diameter, thickness, and pack quantity. Larger packs offer a lower per-piece cost and are ideal for production runs, restocking, or projects requiring multiple identical blanks. Single-piece options are best for prototyping or one-off repairs. The price shown reflects the total pack price — divide by quantity to compare per-piece cost across options.
