T2 Solid Copper Discs Circle Blanks — Precision-Cut Round Sheets for DIY & Industrial Use When your project demands reliable electrical conductivity and clean, burr-free edges, finding the right copper disc blank can be a frustrating search. Whether you are a maker, electrician, metalworker, or hobbyist, these T2 solid copper discs circle blanks deliver the dimensional accuracy and material consistency your work requires. Each disc is machined from T2 (C11000-equivalent) pure copper, offering a copper content of ≥99.9%. Available in two thicknesses — 5mm (~0.197 in) and 6mm (~0.236 in) — with outer diameters ranging from 10mm (~0.39 in) to 200mm (~7.87 in), these round sheets cover a wide spectrum of applications. Sold individually or in multi-piece sets (1–10 pcs per order). Typical use cases include custom electrical bus bars and grounding pads, heat-sink shims and thermal interface discs, jewellery blanks and metal stamping stock, and decorative inlay or craft projects requiring a solid copper disc blank in a specific diameter. ⚙️ Compatibility: Suitable for soldering, brazing, machining, and forming. Compatible with standard copper-rated cutting tools, drill bits, and CNC fixtures. Not pre-drilled — supplied as flat round blanks. ✅ Key Features of These T2 Solid Copper Disc Blanks 🔴 T2 Pure Copper Material Manufactured from T2 grade copper (≥99.9% Cu), delivering excellent electrical conductivity (typically ≥58 MS/m) and thermal conductivity (~390 W/m·K) for demanding applications. 📐 Wide Diameter Range Available from 10mm to 200mm outer diameter in this listing, with thickness options of 5mm and 6mm — covering the most common disc blank sizes for DIY and light industrial work. ✂️ Clean-Cut Edges Each disc is cut to a consistent round profile. Edges are suitable for direct use or light finishing with a file or deburring tool before assembly. 🔩 Machinable & Formable T2 copper machines cleanly with standard HSS or carbide tooling. Suitable for drilling, turning, milling, and cold-forming without cracking at room temperature. ⚡ Excellent Electrical & Thermal Performance Ideal for grounding discs, bus bar blanks, heat-sink shims, and electrical contact pads where low resistance and high thermal transfer are critical. 📦 Flexible Quantity Options Order 1, 2, 3, 4, 5, 6, 8, or 10 pieces per variant to match your project needs — from single prototypes to small production runs. 📐 Technical Specifications — T2 Copper Disc Blanks Material Grade T2 Copper (≥99.9% Cu) Thickness Options 5mm (~0.197 in) / 6mm (~0.236 in) Outer Diameter Range 10mm – 200mm (0.39 in – 7.87 in) Shape Flat round disc (no hole) Surface Finish See variant options Electrical Conductivity ≥58 MS/m (typical for T2 copper) Thermal Conductivity ~390 W/m·K (typical for T2 copper) Hardness See variant options Quantity per Order 1 / 2 / 3 / 4 / 5 / 6 / 8 / 10 pcs Pre-Drilled No — supplied as solid blanks ❓ Frequently Asked Questions How do I choose the right diameter and thickness? Select the outer diameter (OD) that matches your target application — for example, a 50mm disc for a grounding pad or a 100mm disc for a heat-sink shim. Choose 5mm thickness for lighter-duty or weight-sensitive applications, and 6mm where additional rigidity or thermal mass is needed. Use the variant selectors above to pick your exact combination. What is T2 copper and how does it differ from other copper grades? T2 copper is a designation for electrolytic tough-pitch (ETP) copper with a purity of ≥99.9% Cu. It offers excellent electrical conductivity (≥58 MS/m), good thermal conductivity (~390 W/m·K), and is widely used in electrical and thermal applications. It is comparable to C11000 in international standards and is softer and more conductive than brass or bronze alloys. Are these discs corrosion-resistant? Copper naturally forms a protective patina (cuprous oxide) over time that slows further oxidation. For indoor electrical or thermal applications this is generally acceptable. For outdoor or high-humidity environments, consider applying a clear lacquer or anti-tarnish coating after installation. The discs are supplied without any surface coating. Can I solder or braze these copper discs? Yes. T2 copper is highly solderable with standard rosin-core or water-soluble flux solders, and can be brazed using silver-based or phosphor-copper brazing alloys. Ensure the surface is clean and free of oxidation before soldering for best results. Are the discs compatible with CNC machining or drilling? Yes. T2 copper machines well with HSS or carbide tooling. Use sharp tools, adequate cutting fluid, and moderate feed rates to avoid work-hardening. The discs can be drilled, turned, milled, or tapped to suit your design. They are supplied as solid blanks with no pre-drilled holes. How many pieces should I order for my project? This listing offers quantity options from 1 to 10 pieces per order. For prototyping or single repairs, choose 1 pc. For small production runs or to have spares on hand, multi-piece options (2, 3, 4, 5, 6, 8, or 10 pcs) offer better value per piece. Select your quantity in the Amount variant selector above. What is the weight of a single disc? Weight varies by diameter and thickness. As a reference, a 5mm-thick, 50mm-diameter T2 copper disc weighs approximately 87g; a 6mm-thick, 100mm-diameter disc weighs approximately 420g. Exact weights for your selected variant are available on request — contact us to confirm. Can these discs be used for jewellery or craft stamping? Yes. The smaller diameter options (10mm–50mm) in 5mm thickness are popular for metal stamping blanks, pendant bases, and decorative inlay work. The clean round profile and pure copper composition make them suitable for jewellery-making, enamelling, and craft projects. Light sanding or polishing may be needed to achieve a mirror finish. 🛒 Select your Thickness, Diameter, and Amount above, then add to cart. { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How do I choose the right diameter and thickness?", "acceptedAnswer": { "@type": "Answer", "text": "Select the outer diameter (OD) that matches your target application. Choose 5mm thickness for lighter-duty applications, and 6mm where additional rigidity or thermal mass is needed. Use the variant selectors above to pick your exact combination." } }, { "@type": "Question", "name": "What is T2 copper and how does it differ from other copper grades?", "acceptedAnswer": { "@type": "Answer", "text": "T2 copper is electrolytic tough-pitch copper with ≥99.9% Cu purity, offering excellent electrical conductivity (≥58 MS/m) and thermal conductivity (~390 W/m·K). It is comparable to C11000 and is softer and more conductive than brass or bronze alloys." } }, { "@type": "Question", "name": "Are these discs corrosion-resistant?", "acceptedAnswer": { "@type": "Answer", "text": "Copper naturally forms a protective patina over time. For outdoor or high-humidity environments, apply a clear lacquer or anti-tarnish coating after installation. Discs are supplied without surface coating." } }, { "@type": "Question", "name": "Can I solder or braze these copper discs?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. T2 copper is highly solderable with standard rosin-core or water-soluble flux solders, and can be brazed using silver-based or phosphor-copper brazing alloys." } }, { "@type": "Question", "name": "Are the discs compatible with CNC machining or drilling?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. T2 copper machines well with HSS or carbide tooling. The discs can be drilled, turned, milled, or tapped. They are supplied as solid blanks with no pre-drilled holes." } }, { "@type": "Question", "name": "How many pieces should I order for my project?", "acceptedAnswer": { "@type": "Answer", "text": "Quantity options range from 1 to 10 pieces per order. Multi-piece options (2–10 pcs) offer better value per piece for small production runs." } }, { "@type": "Question", "name": "What is the weight of a single disc?", "acceptedAnswer": { "@type": "Answer", "text": "Weight varies by diameter and thickness. A 5mm-thick, 50mm-diameter disc weighs approximately 87g; a 6mm-thick, 100mm-diameter disc weighs approximately 420g. Contact us to confirm exact weights." } }, { "@type": "Question", "name": "Can these discs be used for jewellery or craft stamping?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Smaller diameter options (10mm–50mm) in 5mm thickness are popular for metal stamping blanks, pendant bases, and decorative inlay work. Light sanding or polishing may be needed for a mirror finish." } } ] }
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