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When your project demands a reliable, flat copper disc with consistent thickness and clean edges, sourcing the right blank can be a frustrating bottleneck. Whether you're a jeweler, electronics hobbyist, or fabrication maker, these 1mm thick T2 copper round plate blanks give you a ready-to-use starting point — no cutting, no guesswork.
Each disc is cut from T2-grade copper flat stock, offering a thickness of 1mm (approx. 0.039 in) and a diameter of 87mm (approx. 3.43 in). T2 copper is a commercially pure copper grade with copper content typically ≥99.9%, known for its excellent electrical conductivity, thermal performance, and workability. The surface is smooth and uncoated, suitable for further machining, stamping, or finishing.
Typical use cases include copper disc anodes for electroplating setups, heat spreader blanks for DIY thermal management, custom jewelry and pendant blanks for metalsmithing, grounding pads and bus bar blanks for electrical enclosures, and decorative inlay or craft discs for woodworking and mixed-media projects.
Made from T2 commercially pure copper (≥99.9% Cu), delivering reliable electrical conductivity (~58 MS/m) and thermal conductivity (~390 W/m·K) for demanding applications.
Consistent 1mm (0.039 in) thickness across the disc ensures uniform material removal during machining, stamping, or forming operations.
Pre-cut to 87mm (3.43 in) diameter — ready to use as-is or as a starting blank for further shaping, drilling, or engraving without raw sheet handling.
T2 copper's near-pure composition makes these discs ideal for grounding pads, bus bar blanks, heat spreaders, and electroplating anodes in DIY electronics builds.
Soft and ductile copper alloy that responds well to drilling, filing, bending, and soldering — no special tooling required for most maker and repair applications.
Clean, bare copper surface accepts patinas, plating, lacquers, and chemical treatments directly — ideal for jewelry blanks, decorative discs, and craft inlays.
| Material | T2 Copper (≥99.9% Cu) |
|---|---|
| Item Type | Flat Stock / Round Disc Blank |
| Thickness | 1mm (0.039 in) |
| Diameter | 87mm (3.43 in) |
| Surface Finish | Uncoated, bare copper |
| Electrical Conductivity | ~58 MS/m (typical for T2 copper) |
| Thermal Conductivity | ~390 W/m·K (typical for T2 copper) |
| Approx. Weight per Disc | ~52 g (0.115 lb) |
| Quantity per Order | See variant options |
This listing is for the 87mm diameter × 1mm thick disc. If you need other diameters or thicknesses, please check our other listings or contact us — we carry a range of copper flat stock sizes to suit different project requirements.
T2 copper is a Chinese national standard designation (GB/T 5585) that is functionally equivalent to C11000 (ETP copper) under ASTM standards. Both refer to electrolytic tough pitch copper with ≥99.9% copper content, making them interchangeable for most electrical, thermal, and metalworking applications.
Yes. The high purity of T2 copper makes these discs well-suited for use as copper anodes in DIY electroplating and electroforming setups. The 87mm diameter provides a useful surface area for small-to-medium plating tanks.
At 1mm thickness, these discs can be drilled with standard HSS drill bits using a slow speed and cutting fluid. They can be cut with tin snips, a jeweler's saw, or a rotary tool with a cutting disc. Filing and sanding the edges is straightforward due to copper's ductility.
Bare copper will naturally oxidize and develop a patina when exposed to air and moisture. For applications requiring a bright finish, apply a clear lacquer or wax coating after cleaning. For decorative use, the natural patina can be accelerated or controlled with chemical treatments.
Yes. The 87mm disc is a popular size for large pendant blanks, disc earrings, and decorative medallions. The uncoated surface accepts stamping, engraving, etching, and patina treatments. At 1mm thickness, the disc is rigid enough to hold its shape while remaining workable with hand tools.
Store in a dry, sealed bag or container away from humidity and acidic environments. Placing an anti-tarnish strip inside the storage bag will significantly slow oxidation. Avoid direct contact with rubber or sulfur-containing materials, which accelerate copper tarnishing.
