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When your project demands a flat, clean-edged round metal blank that fits exactly where you need it, generic sheet offcuts just don't cut it. Whether you're a maker building custom hardware, a hobbyist crafting decorative medallions, or a small-shop engineer needing precise shim stock, sourcing the right disc size in the right thickness is always a headache. These H62 solid brass disc blanks solve that problem with a wide selection of diameters and thicknesses available in one place.
Each disc is cut from H62 grade solid brass — a copper-zinc alloy known for its balance of machinability, corrosion resistance, and warm golden appearance. Discs are available in outer diameters from 10mm (approx. 0.39 in) to 300mm (approx. 11.81 in), with thicknesses ranging from 0.3mm (approx. 0.012 in) to 4mm (approx. 0.157 in). Pack sizes of 1, 2, or 4 pieces are offered depending on the selected variant.
Typical applications include custom gaskets and shim washers for mechanical assemblies, decorative disc blanks for jewelry making and metal stamping, base plates and spacers in electronics enclosures, and flat stock for engraving, etching, or CNC routing projects requiring brass round sheet stock.
| Material | H62 Brass (Copper-Zinc Alloy) |
|---|---|
| Shape | Round / Disc |
| Outer Diameter (OD) | 10mm – 300mm (0.39 in – 11.81 in) |
| Thickness | 0.3mm – 4mm (0.012 in – 0.157 in) |
| Pack Size | 1 pcs / 2 pcs / 4 pcs (see variant options) |
| Surface Finish | See variant options |
| Tolerance | See variant options |
| Hardness | See variant options |
| Application | Shims, gaskets, decorative blanks, stamping, engraving, CNC routing |
| Compatibility | Suitable for soldering, brazing, drilling, tapping, and plating |
For shim and gasket applications, thinner discs (0.3mm–0.8mm) are typically used to fill small gaps or provide a compressible seal layer. For structural spacers, base plates, or decorative pieces that need rigidity, thicker options (1mm–4mm) are more appropriate. If you are unsure, measure the gap or recess your disc needs to fill and select the closest available thickness.
H62 is a standard copper-zinc brass alloy (approximately 60–63% copper, remainder zinc). It offers moderate tensile strength (typically 330–420 MPa), good ductility, and excellent machinability. It is not intended for high-stress structural load-bearing applications but performs well in light mechanical, decorative, and electrical contexts.
H62 brass does not rust (rust is specific to iron-based metals). It is resistant to atmospheric corrosion in most indoor environments. Over time, brass may develop a natural patina (darkening or greenish tarnish) when exposed to moisture and air. This can be prevented with a clear lacquer coating or polished away with brass cleaner if a bright finish is desired.
Yes. H62 brass is one of the more machinable non-ferrous metals. It drills cleanly with standard HSS or carbide drill bits, can be tapped for threads, milled, turned on a lathe, and engraved. Use cutting fluid or lubricant for cleaner results, especially on thicker discs. Thin discs (0.3mm–0.5mm) should be clamped carefully to avoid distortion during machining.
Yes. H62 brass solders and brazes readily. Use a rosin-core or acid-core solder appropriate for brass, along with a suitable flux. For brazing, silver brazing alloys work well. Ensure the surface is clean and free of oxidation before joining for the strongest bond.
Pack size (1, 2, or 4 pieces) varies by the selected Thickness × Diameter combination. Smaller or thinner discs are often available in larger packs, while larger or thicker discs are typically sold individually. Select your required Thickness × Diameter first — the available pack sizes for that combination will be shown in the Pack Size option.
A brass disc blank is a solid flat round piece with no center hole. A washer has a pre-drilled center hole sized for a specific fastener. Disc blanks are used when you need a solid surface — for stamping, engraving, custom gaskets, or as a starting point for further machining. If you need a center hole, you can drill one yourself to your exact specification.
