Solid Brass Disc Blanks — Precision-Cut Round Metal Sheets for Metalworking & DIY When your project demands a flat, burr-free starting point, sourcing the right blank wastes hours — wrong alloy, inconsistent thickness, or diameters that force you to grind down stock. These solid brass disc blanks are stocked specifically for makers, machinists, jewelers, and fabricators who need a reliable, dimensionally accurate round to work from, without the overhead of cutting their own plate. Each disc is cut from solid brass (CuZn alloy, commonly C260 / cartridge brass grade), delivering a warm golden finish and consistent wall integrity across the full face. Thickness options run from 0.5 mm (≈ 0.020 in) up to 6 mm (≈ 0.236 in), and diameters span 20 mm (≈ 0.79 in) to 300 mm (≈ 11.81 in), giving you fine gauge sheet-weight rounds through substantial plate-weight discs in a single product line. Typical applications include stamping and engraving blanks for jewelry and nameplate work, spacer and shim stock in mechanical assemblies, decorative inlay rounds for woodworking and furniture, clock face and dial blanks, and prototype or short-run parts where laser or waterjet cutting from a pre-sized disc saves setup time. Select the thickness and diameter combination that matches your drawing, and add to cart. 🔧 Compatibility Note: These discs are uncoated solid brass. They are compatible with standard metalworking processes including drilling, milling, turning, stamping, soldering, and chemical patination. Not suitable as a direct electrical ground plane without surface preparation. ✅ Key Features of These Solid Brass Disc Blanks 🟡Solid Brass Construction — Cut from CuZn brass alloy (C260-equivalent), offering a balance of machinability, corrosion resistance, and a consistent golden appearance across the full disc face. 📏Wide Size Matrix — Thickness from 0.5 mm to 6 mm; diameter from 20 mm to 300 mm. Mix and match to your exact drawing spec without secondary cutting operations. ✂️Blank-Ready Edges — Discs are supplied with clean-cut edges suitable for immediate stamping, engraving, or turning. Minimal deburring required for most applications. ⚙️Machinable & Solderable — Brass machines freely with standard HSS or carbide tooling and accepts soft solder, silver solder, and brazing alloys without flux complications. 🛡️Natural Corrosion Resistance — Brass forms a stable oxide layer that resists atmospheric corrosion in indoor and sheltered outdoor environments, reducing the need for protective coatings in decorative use. 📦Single-Piece or Multi-Pack Options — Available per piece, letting you order exactly the quantity your project requires without committing to bulk minimums. 📐 Technical Specifications — Solid Brass Disc Blanks Material Solid Brass (CuZn alloy, C260-equivalent) Finish Mill finish / natural brass (uncoated) Thickness Range 0.5 mm – 6 mm (≈ 0.020 in – 0.236 in) Diameter Range 20 mm – 300 mm (≈ 0.79 in – 11.81 in) Shape Round disc (circular blank) Edge Condition Cut edge; light deburring may be required Hardness See variant options Tensile Strength See variant options Quantity per Order See variant options Surface Treatment None (bare metal, ready for finishing) ❓ Frequently Asked Questions How do I choose the right thickness for my project? For engraving blanks, jewelry pendants, and light stamping work, 0.5 mm–1 mm thickness is typically sufficient. For structural spacers, shims, or parts that will be drilled and tapped, 1.5 mm–3 mm provides better thread engagement and rigidity. For heavy-duty mechanical components or thick decorative plaques, 4 mm–6 mm is appropriate. When in doubt, go one step thicker — brass is easy to face down on a lathe or surface grinder. What diameter should I order if I need to cut a custom shape from the disc? Order a diameter at least 10–15% larger than your finished part's largest dimension to allow for saw kerf, edge cleanup, and fixturing. For example, if your finished part is 80 mm across, a 100 mm disc gives comfortable working margin. For circular finished parts, match the diameter as closely as possible to minimize waste. Is this brass suitable for outdoor or marine environments? Brass performs well in sheltered outdoor and light-exposure environments. In direct marine or high-humidity conditions, brass can develop a green patina (verdigris) over time. For marine-grade applications, consider applying a clear lacquer or wax coating after fabrication, or contact us to confirm suitability for your specific environment. Can I solder or braze these discs? Yes. Brass accepts soft solder (tin-lead or lead-free), silver solder, and brazing alloys readily. Clean the surface with fine abrasive or flux before soldering to remove any surface oxidation. Standard rosin or acid flux works well depending on your solder type. Avoid overheating thin gauges (0.5 mm–1 mm) to prevent warping. Will these discs work for jewelry stamping and metal stamping blanks? Yes. Brass is one of the most common metals used for stamping blanks due to its workability and attractive finish. Thinner gauges (0.5 mm–1.5 mm) are ideal for hand stamping with letter and design stamps. Thicker gauges (2 mm+) are better suited for press stamping or CNC engraving where a more rigid substrate is needed. How do I prevent tarnishing after fabrication? Brass tarnishes naturally when exposed to air and handling oils. To preserve the bright finish, clean the surface with a brass polish or mild acid solution (such as diluted citric acid), then apply a thin coat of clear lacquer, Renaissance wax, or jewelry sealant. For functional parts where appearance is secondary, tarnishing does not affect mechanical performance. Are these discs compatible with CNC milling and laser engraving? Yes for CNC milling — brass machines cleanly with standard carbide end mills at moderate speeds and feeds. For laser engraving, bare brass reflects CO₂ laser wavelengths and typically requires a marking compound (such as Cermark or dry moly lube) or a fiber laser to achieve a permanent mark. CO₂ lasers can cut thin brass (0.5 mm–1 mm) with appropriate power settings and assist gas. 🛒 Select your Thickness x Diameter above, then add to cart.
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