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When your project demands a material that conducts electricity reliably, resists corrosion over time, and machines cleanly without cracking, finding the right copper sheet in the exact size you need can be frustrating. Hobbyists, makers, electronics enthusiasts, and small-shop fabricators all face the same challenge: off-the-shelf copper stock rarely matches the exact thickness and footprint a project calls for. These T2 copper sheet metal square plates are stocked in a wide range of sizes specifically to solve that problem.
Each piece is cut from T2-grade pure copper (≥99.9% Cu), known for its excellent electrical conductivity, thermal conductivity, and workability. Thickness options span 0.1 mm to 8 mm (approximately 0.004" to 0.315"), and face dimensions range from 10 × 10 mm (0.39" × 0.39") up to 200 × 200 mm (7.87" × 7.87"). Pieces are supplied as flat, square-cut blanks with a smooth mill finish.
Typical applications include custom bus bars and grounding pads for electronics workbenches, heat spreader shims between components and heatsinks, decorative inlay work in woodworking and leathercraft, and small-batch prototype stamping or etching for PCB-adjacent projects. The consistent thickness and square geometry make these copper sheet metal blanks a reliable starting point for any T2 copper flat stock DIY application.
| Material | T2 Pure Copper (≥99.9% Cu) |
|---|---|
| Thickness Range | 0.1 mm – 8 mm (approx. 0.004" – 0.315") |
| Face Dimensions | 10×10 mm to 200×200 mm (see variant options) |
| Shape | Square flat plate |
| Surface Finish | Mill finish (smooth, uncoated) |
| Electrical Conductivity | See variant options |
| Hardness | See variant options |
| Pack Quantity | 1 Pcs / 2 Pcs / 4 Pcs (varies by size) |
| Weight per Piece | See variant options |
For electrical shims, grounding pads, and thin heat spreaders, thicknesses of 0.1 mm – 0.5 mm are typically sufficient. For structural brackets, bus bars, or parts that need to be tapped or threaded, 1 mm – 3 mm is a common range. Thicker plates (3.5 mm – 8 mm) are suited for heavy-duty heat sinks, machined blocks, or decorative inlay work where rigidity matters. When in doubt, select one step thicker than your minimum requirement.
T2 is the Chinese national standard designation for electrolytic tough-pitch (ETP) copper, which is closely equivalent to ASTM C11000 (C110). Both specify ≥99.9% copper content and share similar electrical conductivity, thermal conductivity, and workability characteristics. If your project calls for C110 or ETP copper, T2 is a functionally compatible substitute for most DIY and light industrial applications.
Copper does not rust (rust is specific to iron-based metals). Over time, copper oxidizes and develops a patina — first darkening to a brown tone, then potentially forming a green verdigris layer in humid or outdoor conditions. This patina is stable and actually slows further corrosion. For applications where appearance matters, the surface can be sealed with a clear lacquer or kept polished. For electrical contact applications, ensure mating surfaces are clean and free of heavy oxidation before assembly.
Yes. Thin plates (0.1 mm – 0.5 mm) can be cut with sharp scissors, a craft knife, or tin snips. Plates up to about 2 mm can be cut with a hacksaw, angle grinder, or CNC router using appropriate feeds and speeds. Thicker plates (2 mm and above) are best cut with a bandsaw, cold saw, or CNC milling. For drilling, use sharp HSS or carbide bits with cutting fluid and moderate speed to avoid work-hardening the copper. Copper is ductile and tends to grab the drill bit, so a center punch and slow feed rate are recommended.
T2 copper has a thermal conductivity of approximately 385–400 W/(m·K), making it one of the most thermally conductive common metals. Thin plates (0.1 mm – 0.5 mm) are widely used as heat spreader shims between CPUs, GPUs, or power transistors and their heatsinks. For best thermal performance, ensure both mating surfaces are flat and use a thin layer of thermal compound on each side of the copper shim. Thicker plates can serve as heat spreader bases or cold plates in custom liquid cooling setups.
Select the Thickness × Width × Length combination that matches or slightly exceeds your finished part dimensions — it is easier to trim down than to add material. The Amount option (1 Pcs, 2 Pcs, or 4 Pcs) varies by size: smaller and thinner plates are available in multi-piece packs, while larger and thicker plates are typically sold individually. If you need multiple pieces of the same size, check the available quantity options before ordering, or place multiple orders of the same variant.
Yes. T2 copper's high purity makes it well-suited for chemical etching processes used in DIY PCB fabrication (using ferric chloride or ammonium persulfate etchants) and for electroforming applications. Thin plates (0.1 mm – 0.3 mm) are particularly useful as starting substrates or anodes. Ensure the surface is clean and free of oils before etching — a light scrub with fine abrasive and isopropyl alcohol is typically sufficient preparation.
