A2 Stainless Steel Blank Disc 0.5-10mm Thick 304 Laser Cut Round Sheet Plate

Start with your design drawing or the mating component dimensions. Diameter determines the footprint of the disc — for flanges or base plates, match the bolt circle or housing bore. Thickness affects load-bearing capacity and rigidity: 0.5–1 mm suits decorative or lightweight applications, 2–4 mm covers general fabrication, and 5–10 mm is appropriate for structural or high-load uses. When in doubt, size up on thickness — it is easier to grind down than to add material.

304 stainless steel has a typical tensile strength of around 515 MPa and yield strength of approximately 205 MPa, which is adequate for many structural brackets, flanges, and support plates. For high-stress or dynamic-load applications, consult a structural engineer. If you need higher strength, consider 316 or duplex grades — contact us to confirm availability.

304 stainless steel resists rust in most outdoor environments due to its chromium oxide passive layer. However, it is not fully immune — prolonged exposure to coastal salt air, chlorinated water, or industrial chemicals can cause surface staining or pitting over time. For marine or heavily corrosive environments, 316 grade is recommended. Regular cleaning with a mild detergent helps maintain the passive layer.

Laser-cut edges are cleaner than shear-cut edges and have minimal burr, but thicker discs (4 mm and above) may still have sharp edges at the cut face. We recommend wearing cut-resistant gloves when handling, especially for larger diameters. If a fully deburred or chamfered edge is required for your application, light grinding or filing will achieve this quickly.

Yes. These discs are supplied as uncoated, unfinished blanks specifically intended for further processing. They are compatible with MIG and TIG welding using 308L filler wire, standard HSS or cobalt drill bits (use cutting fluid and low speed), and CNC milling or turning. The mill finish surface does not require removal before welding, though cleaning with acetone beforehand improves weld quality.

For prototyping or one-off repairs, the single-piece (qty 1) option keeps cost low. If you are building a small batch of identical assemblies or want a spare, qty 2 is practical. For production runs or workshop stock, qty 5 or 10 offers a lower per-piece cost. All quantity options ship as the same disc — only the count and price differ.

The discs arrive with a standard mill finish — a slightly dull, brushed-like appearance typical of rolled stainless sheet. This is acceptable for many industrial and semi-visible uses. For a mirror or satin finish, the surface can be polished using progressively finer abrasive pads (120 → 240 → 400 grit, then polishing compound). The laser-cut edge will require separate finishing if a polished edge is needed.