A2 Stainless Steel Discs Round Sheet Metal Blanks OD 50-400mm Thick 0.6mm~5mm

Select the diameter that matches your required outer dimension — these are nominal OD measurements. For thickness, thinner discs (0.6–1 mm) suit decorative or lightweight applications; mid-range (1.2–2 mm) works for general fabrication; 2.5–5 mm is appropriate for structural or load-bearing uses. When in doubt, go one step thicker to allow for machining stock removal.

No. These are flat, unthreaded blanks with no pre-drilled holes. You drill, tap, or punch them to your own specification after receipt. This gives you full control over hole placement and size.

A2 (304) stainless steel offers good corrosion resistance in most outdoor environments. It resists rust and oxidation well in normal atmospheric conditions. In coastal or high-chloride environments, A4 (316) grade would be a stronger choice; however, for most inland outdoor and indoor applications these discs perform reliably without surface treatment.

Yes. A2/304 stainless steel is weldable using MIG or TIG processes with appropriate filler wire (e.g. ER308L). It machines with standard HSS or carbide tooling — use cutting fluid, moderate speeds, and consistent feed rates to avoid work-hardening. Grinding and polishing are also straightforward with stainless-rated abrasives.

Larger-diameter and thicker discs are sold in packs of 1 because of their size and weight. Smaller, thinner discs are available in packs of 2 or 4, which is convenient for projects requiring multiple identical pieces or for keeping spares on hand. The pack size is shown in the "Pack of Quantity (Pcs)" variant selector.

Discs are typically deburred during production, reducing sharp-edge risk. That said, cut metal edges can still be sharp depending on the cutting method and disc size. We recommend wearing cut-resistant gloves when handling, and running a file or deburring tool around the edge if you need a fully smooth finish for your application.

Yes — these are among the most common uses. The flat, consistent geometry makes them well-suited as backing plates in plumbing or structural assemblies, as spacer discs between components, and as flange blanks that you drill to your bolt-circle pattern. Confirm the thickness and diameter match your load and clearance requirements before ordering.