Brushed STAINLESS STEEL Blank Round DISC 304 Grade Sheet Metal Plate Laser Cut

For decorative or lightweight applications such as wall art, signage, or thin backing plates, 0.6mm–1mm is typically sufficient. For structural uses — shim plates, mounting flanges, or load-bearing brackets — 1.5mm–3mm provides a better balance of rigidity and workability. Thicknesses of 4mm and 5mm are suited to heavy-duty fabrication where significant mechanical stress is expected. When in doubt, size up: a thicker disc can always be machined down, but a disc that flexes under load cannot be reinforced easily.

304 stainless steel performs well in sheltered outdoor environments — covered patios, interior-facing facades, and protected mechanical enclosures. It resists oxidation and general atmospheric corrosion effectively. However, in coastal or high-chloride environments (salt spray, poolside), 316-grade stainless is typically recommended for long-term outdoor exposure. For most residential and light commercial DIY applications, 304 grade is a practical and cost-effective choice.

Laser-cut edges are cleaner than shear-cut or saw-cut edges, with minimal burr. That said, all cut metal edges carry some sharpness, particularly on thinner gauges. We recommend wearing cut-resistant gloves when handling, and lightly deburring with a fine file or abrasive pad if the disc will be used in a context where bare-hand contact is frequent (e.g., decorative pieces handled by end users).

Yes. 304 stainless steel is compatible with standard MIG and TIG welding processes using 308L filler wire. For drilling, use HSS-Co (cobalt) or carbide-tipped drill bits with cutting fluid to manage heat buildup — stainless work-hardens quickly if drilled dry or at excessive speed. Pilot holes are recommended for diameters above 6mm. Standard workshop equipment handles these discs without modification.

The directional brushed grain does show fingerprints more readily than a matte bead-blasted finish, but less so than a mirror-polished surface. For display or decorative applications, a light wipe with a microfiber cloth and stainless steel cleaner restores the appearance. If the disc will be painted or powder-coated, fingerprints are a non-issue as the surface will be primed before coating. For raw-finish decorative use, handling with clean gloves during installation is advisable.

For gasket blanks, match the disc diameter to the outer diameter of the flange or fitting you're sealing, then select a thickness based on the compression gap — typically 0.6mm–1.5mm for light-duty sealing applications. For shim plates, the thickness should match the gap you need to fill precisely; measure the gap with feeler gauges before ordering. If your required diameter falls between two available options, select the next size up and trim to fit with an angle grinder or lathe.

Pack quantity depends on the variant selected. Smaller diameter discs (50mm and 100mm) are available in 4-piece packs. Mid-range diameters (150mm–200mm) offer 2-piece or 4-piece options depending on thickness. Larger diameters (250mm–350mm) are sold individually (1 piece per order) due to their size and weight. The exact quantity for each combination is shown in the variant selector above the Add to Cart button.