Dia 50/80/100/200/300mm A2 Stainless Steel Round Sheet Flat Disc 0.5 - 5mm Thick

Select the diameter that matches or slightly exceeds the footprint you need — you can always trim down but not add material. For thickness, thinner discs (0.5–1 mm) suit lightweight covers, shims, and decorative applications, while thicker options (2–5 mm) are better for structural base plates, heavy-duty gaskets, and load-bearing fixtures. Use the variant selectors above to find your combination.

These discs are made from A2 stainless steel, which is equivalent to the widely used 304 grade. It has a typical tensile strength of around 500–700 MPa and a yield strength of approximately 200–310 MPa, making it suitable for moderate structural loads. It is not a hardened or tool-grade steel, so it is not intended for cutting edges or high-wear surfaces.

A2 stainless steel offers good resistance to oxidation and moisture, making it suitable for indoor use and sheltered outdoor environments. In harsh coastal or highly acidic environments, A4 (316-grade) stainless would be a better choice. For most workshop, home, and light industrial applications, A2 performs reliably without surface treatment.

Yes. A2 stainless steel is readily weldable using TIG or MIG processes with appropriate stainless filler wire and shielding gas. It can also be drilled, milled, turned, and ground using standard HSS or carbide tooling. Use cutting fluid to manage heat and extend tool life when machining.

The discs come with a mill finish — a standard industrial surface that is clean and flat but not mirror-polished. This makes them ideal as a starting point if you plan to polish, bead-blast, brush, or coat the surface. They can be used as-is for functional applications where appearance is not critical.

Yes. The flat, consistent surface of these A2 stainless steel discs makes them a popular choice for laser engraving, chemical etching, and CNC routing. Thinner variants (0.5–1 mm) are commonly used for decorative plaques and tags, while thicker discs (2 mm and above) work well for signage and awards that need more rigidity.

For shim applications, choose the thinnest option that provides the clearance adjustment you need — typically 0.5 mm or 0.8 mm for fine adjustments. For gaskets, the required thickness depends on the flange pressure and the compressibility of any sealing material used alongside the disc. In most light-duty plumbing or mechanical applications, 1–2 mm discs are a practical starting point.