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When your project demands reliable conductivity and clean, consistent geometry, finding a copper disc that ships in the exact diameter and thickness you need can be a real challenge. Whether you're a maker building custom electrical contacts, a hobbyist crafting decorative metalwork, or a small workshop fabricating heat spreaders, these T2 copper round plates give you the dimensional precision and material integrity to get the job done right.
Each disc is cut from T2-grade pure copper (≥99.9% Cu), offering excellent electrical and thermal conductivity. Diameters range from 10mm to 300mm (approximately 0.39 in to 11.81 in), and thickness options span 0.3mm to 1.6mm (approximately 0.012 in to 0.063 in). Surfaces are flat and smooth, with consistent edge finishing across the range.
These copper discs are well-suited for a wide range of applications: use them as custom electrical bus bars or contact pads in DIY electronics, as heat spreader shims between components in thermal management builds, or as blanks for metal stamping, etching, and decorative copper craft projects. Their uniform thickness also makes them a reliable choice for gasket fabrication and precision shimming in mechanical assemblies.
Made from T2 copper with ≥99.9% purity, delivering reliable electrical conductivity (typically ~58 MS/m) and thermal conductivity (~390 W/m·K) for demanding applications.
Diameter options from 10mm to 300mm and thickness from 0.3mm to 1.6mm let you select the exact disc geometry your project requires without custom cutting.
Each disc features flat, smooth faces and consistent edge finishing, reducing the need for secondary machining in most DIY and light fabrication tasks.
T2 copper's low resistivity makes these discs ideal for electrical contacts, bus bars, and heat spreader applications where material performance matters.
Available in packs of 1, 2, 4, 5, 8, or 10 pieces depending on the size selected, so you can order exactly what you need for prototyping or small-batch production.
From electronics and thermal management to metal stamping, gasket fabrication, and decorative copper craft, these discs cover a broad range of maker and workshop use cases.
| Material | T2 Pure Copper (≥99.9% Cu) |
|---|---|
| Shape | Round / Disc |
| Diameter Range | 10mm – 300mm (0.39 in – 11.81 in) |
| Thickness Range | 0.3mm – 1.6mm (0.012 in – 0.063 in) |
| Surface Finish | Flat, smooth faces; consistent edge finish |
| Electrical Conductivity | Typically ~58 MS/m |
| Thermal Conductivity | Typically ~390 W/m·K |
| Packing Quantity | See variant options |
| Weight per Piece | See variant options |
| Color | Copper (natural) |
Select the diameter that matches your mounting hole, contact pad, or cutout dimension. For thickness, thinner discs (0.3–0.5mm) work well for shimming, flexible contacts, and lightweight craft applications, while thicker options (0.8–1.6mm) are better suited for structural heat spreaders, bus bars, and gaskets that need to hold shape under compression. Always verify your required dimensions before ordering.
T2 copper is a soft, ductile metal. Thinner discs (0.3–0.5mm) can be bent or formed by hand with care, making them suitable for craft and light fabrication. Thicker discs (1mm and above) are more rigid and better suited for flat applications such as heat spreaders, contacts, and gaskets. Copper work-hardens when bent repeatedly, so plan your forming steps accordingly.
Copper naturally develops a patina (oxidation layer) over time when exposed to air and moisture. This surface oxidation does not significantly affect electrical or thermal conductivity in most applications. For environments with high humidity or chemical exposure, consider applying a protective coating or sealant after installation. The T2-grade purity ensures consistent base material performance.
Yes. T2 pure copper solders readily with standard rosin-core or no-clean flux solders. The high purity (≥99.9% Cu) ensures low contact resistance, making these discs suitable for electrical contacts, bus bars, and PCB-adjacent components. Lightly sand or clean the surface before soldering if the disc has developed any oxidation.
Yes. T2 copper's thermal conductivity of approximately 390 W/m·K makes it an effective heat spreader material. Select a diameter that covers your heat source and a thickness appropriate for your thermal stack — thinner discs (0.3–0.5mm) minimize added height while still conducting heat effectively. Use thermal interface material (TIM) on both faces for best results.
Available quantities vary by size: smaller diameters (10–15mm) are offered in packs of 1, 2, 4, 5, 8, or 10 pieces, while larger diameters (80mm and above) are typically available in packs of 1 or 2. If you're prototyping, a smaller pack lets you test fit and function before committing to larger quantities. For production runs or workshop stock, larger packs offer better per-piece value.
Yes. T2 copper machines well with standard metalworking tools. It can be drilled, punched, sheared, or turned on a lathe. Use sharp tooling and appropriate cutting speeds to avoid work-hardening the material. Thinner discs (0.3–0.5mm) are best cut with shears or a punch; thicker discs (1mm+) can be drilled or milled with standard HSS or carbide tooling.
