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When your project demands reliable electrical conductivity and clean, consistent geometry, generic sheet metal simply won't do. Makers, electricians, jewelers, and workshop builders who need a dependable copper disc turn to T2 pure copper round plates — chosen for their tight dimensional tolerance and excellent workability straight out of the package.
Each T2 pure copper round sheet disc is cut from C11000-equivalent electrolytic tough-pitch copper, delivering ≥99.9% copper purity. Diameters range from 60 mm (≈2.36 in) to 200 mm (≈7.87 in), and thickness options span 0.5 mm (≈0.020 in) to 5 mm (≈0.197 in), covering everything from thin shim stock to solid structural discs. The flat, burr-minimized surface is ready for immediate use or further machining.
Typical applications include custom electrical bus bars and grounding pads, heat-spreader discs for DIY electronics cooling, decorative metalwork and jewelry blanks, and precision shim or spacer stock in mechanical assemblies requiring a copper round plate for tight-tolerance fits.
| Material | T2 Electrolytic Tough-Pitch Copper (≥99.9% Cu) |
|---|---|
| Shape | Round / Disc |
| Diameter Options | 60 mm / 80 mm / 100 mm / 150 mm / 200 mm |
| Thickness Options | 0.5 / 0.8 / 1 / 1.2 / 1.5 / 1.6 / 2 / 2.5 / 3 / 3.5 / 4 / 5 mm |
| Surface Finish | Mill finish, burr-minimized edges |
| Electrical Conductivity | ≈58 MS/m (IACS ≈100%) |
| Thermal Conductivity | ≈390 W/m·K |
| Hardness | See variant options |
| Weight per Piece | See variant options |
| Quantity per Order | 1 / 2 / 3 / 5 / 10 pcs (select above) |
| Applicable Standards | GB/T 5585 / ASTM B187 equivalent |
Start with the footprint your application requires — the diameter should match or slightly exceed your target area. For thickness, consider the mechanical load and conductivity path: thinner discs (0.5–1 mm) suit shims, gaskets, and decorative blanks, while thicker options (2–5 mm) are better for structural spacers, bus bars, and heat spreaders. If you are unsure, contact us with your application details and we can advise.
T2 electrolytic copper in the as-rolled (mill-hardened) condition typically has a tensile strength of approximately 200–250 MPa and a Vickers hardness of around 60–90 HV, depending on the specific thickness and processing. These values make it soft enough for easy forming and machining while still providing adequate structural integrity for most DIY and light industrial uses.
Copper naturally oxidizes when exposed to air and moisture, forming a brownish-to-green patina (cuprite and verdigris). This patina is actually protective and slows further corrosion. For applications requiring a bright finish, apply a clear lacquer or anti-tarnish coating. For electrical contact surfaces, keep the mating area clean and use appropriate contact grease to maintain low resistance.
Yes. T2 copper has excellent solderability and brazability. Use a rosin-based or water-soluble flux appropriate for copper when soldering with tin-lead or lead-free solder. For brazing, silver-based brazing alloys with copper-rated flux work well. Clean the surface with isopropyl alcohol or fine abrasive before joining to remove any surface oxide for the best bond.
Absolutely. T2 copper machines cleanly with standard HSS or carbide drill bits. Use a slow-to-moderate spindle speed with cutting oil or lubricant to prevent the copper from gumming up the flutes. For drilling, a center punch mark helps prevent bit wandering on the smooth surface. The material can also be cut with a jigsaw or angle grinder fitted with a metal-cutting blade.
If you are prototyping or need a single replacement part, the 1-piece option keeps costs low. For production runs, repairs, or projects where you anticipate needing spares, the 3-, 5-, or 10-piece packs offer a lower per-unit cost. Check the price-per-piece across quantity tiers shown in the variant selector to find the most economical option for your volume.
T2 copper (Chinese standard GB/T 5585) is closely equivalent to ASTM C11000 (ETP copper) used in North America, both specifying ≥99.9% copper purity with oxygen content around 0.02–0.04%. T1 copper has slightly higher purity (≥99.95%) and lower oxygen, making it marginally better for oxygen-sensitive applications. For most electrical, thermal, and craft uses, T2 and C110 perform identically and are interchangeable.
