T2 Copper Flat Bar & Sheet Plate — Solid Strip for Electrical, Thermal & Structural DIY Applications When your project demands a conductor that won't compromise on current capacity or heat transfer, a generic metal bar simply won't do. Makers, electricians, and fabricators who need a reliable, dimensionally consistent copper flat bar turn to T2-grade solid strip — where purity translates directly into performance. Each piece is machined from T2 copper (≥99.9% Cu), supplied in a fixed 200mm length (approx. 7.87 in). Width options span 10mm to 150mm (approx. 0.39–5.91 in) and thickness options range from 10mm to 35mm (approx. 0.39–1.38 in), giving you a solid, square cross-section strip that can be cut, drilled, bent, or soldered to fit your exact requirement. Typical use cases include custom busbar fabrication for electrical panels, heat-sink shims and thermal interface blocks in electronics cooling, grounding straps for RF shielding enclosures, and precision blanks for jewelry or craft metalwork where a copper flat bar with tight dimensional tolerances is essential. ⚡ Compatibility note: T2 copper is compatible with standard soldering, brazing, and silver-soldering processes. Suitable for use with copper, brass, and bronze fittings. Not recommended for direct contact with aluminum without an appropriate transition connector. ✅ Key Features of These T2 Copper Flat Bar Solid Strips 🔩T2-Grade Purity (≥99.9% Cu): Delivers electrical conductivity of approximately 58 MS/m and thermal conductivity of ~390 W/(m·K), making it one of the most conductive commercially available copper grades for DIY and industrial use. 📐Fixed 200mm Length, Wide Size Matrix: All strips are cut to a consistent 200mm (7.87 in) length. Width runs from 10mm to 150mm and thickness from 10mm to 35mm — select the exact cross-section your application requires without paying for excess material. 🔲Solid Square Cross-Section: Unlike hollow tube or thin sheet, these are fully solid bars with no voids, ensuring uniform current distribution across the entire cross-section — critical for busbar and grounding applications. 🛡️Natural Corrosion Resistance: T2 copper forms a stable oxide patina over time that slows further oxidation. For indoor electrical enclosures and controlled environments, no additional coating is required. ✂️Machinable & Formable: T2 copper's soft temper allows drilling, milling, bending, and soldering with standard workshop tools. Ideal for custom busbar shapes, thermal shims, and prototype fabrication. 📦Sold by the Piece: Each variant is priced and shipped as individual pieces (1 PCS), so you order exactly what you need — no minimum bundle requirements for most sizes. 📐 Technical Specifications — T2 Copper Flat Bar Solid Strip Material Grade T2 Copper (≥99.9% Cu) Form Flat Bar / Square Solid Strip / Sheet Plate Fixed Length 200mm (approx. 7.87 in) Width Options 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 50mm, 60mm, 80mm, 100mm, 120mm, 150mm Thickness Options 10mm, 12mm, 15mm, 20mm, 25mm, 30mm, 35mm Cross-Section Solid (no hollow core) Electrical Conductivity Approx. 58 MS/m (IACS ~100%) Thermal Conductivity Approx. 390 W/(m·K) Surface Finish See variant options Temper Soft / Annealed (typical for T2 grade) Packing Unit 1 PCS per order unit Weight per Piece See variant options (varies by width × thickness) ❓ Frequently Asked Questions How do I choose the right width and thickness for my busbar application? For busbars, the cross-sectional area (width × thickness in mm²) determines current-carrying capacity. A common rule of thumb for T2 copper is approximately 1–2 A per mm² for continuous indoor use with adequate ventilation. For example, a 30mm × 10mm bar (300 mm²) can typically handle 300–600 A depending on installation conditions. Always consult your local electrical code and derate for enclosure temperature. What is T2 copper and how does it differ from other copper grades? T2 copper is a commercially pure copper grade with a minimum purity of 99.9% Cu. It offers near-maximum electrical and thermal conductivity among copper alloys. Unlike brass (which contains zinc) or bronze (which contains tin), T2 copper contains no significant alloying elements, making it the preferred choice when conductivity — not strength — is the primary requirement. Will this copper bar corrode or tarnish over time? T2 copper naturally oxidizes when exposed to air and moisture, forming a brownish or greenish patina (cupric oxide / verdigris). In dry indoor environments such as electrical panels or enclosures, oxidation is slow and the oxide layer itself provides some protection. For outdoor or high-humidity applications, consider applying a thin coat of electrical-grade anti-oxidant compound or tin-plating the contact surfaces. Can I solder or braze these copper strips? Yes. T2 copper is fully compatible with standard tin-lead and lead-free solders, silver solder, and brazing alloys. Use an appropriate flux (rosin-based for electronics, phosphoric acid flux for plumbing-style brazing) and ensure the surface is clean and free of heavy oxidation before joining. The soft temper of T2 copper also makes it easy to form before soldering. Is this product suitable for grounding and earthing applications? Yes. T2 copper flat bar is widely used for grounding busbars, earthing straps, and equipotential bonding conductors in electrical installations. Its high conductivity ensures low impedance ground paths. Verify that the cross-sectional area meets the minimum requirements specified by your local wiring regulations (e.g., NEC, IEC 60364) for the fault current level of your system. Can I cut or drill this copper bar with standard tools? Yes. T2 copper in soft/annealed temper machines readily with standard HSS drill bits, hacksaw blades, angle grinders, and milling cutters. Use cutting fluid or light oil to extend tool life and achieve a cleaner finish. For drilling, use a center punch to prevent bit wandering on the smooth copper surface. Deburr cut edges with a file or deburring tool before installation. What is the weight of each piece, and how do I estimate it? The weight of each piece can be estimated using the formula: Weight (kg) = Length (m) × Width (m) × Thickness (m) × 8,960 (density of copper in kg/m³). For example, a 200mm × 30mm × 10mm bar = 0.2 × 0.03 × 0.01 × 8,960 ≈ 0.538 kg. Use this formula to estimate shipping weight when ordering multiple pieces. 🛒 Select your Width x Length, Thickness, and Packing QTY above, then add to cart.
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