304 A2 Stainless Steel Sheet Round Steel Plate Dia 100mm~300mm 1mm~3mm Thickness

For decorative or lightweight applications such as wall medallions or thin backing plates, 1–1.5 mm is typically sufficient. For structural uses like furniture base plates or mounting flanges that bear load, 2–3 mm provides the rigidity needed. If you're unsure, measure the thickness of the existing component you're replacing or consult a load table for your specific span and load.

Grade 304 stainless steel forms a passive chromium-oxide layer that resists rust in most outdoor environments. However, in coastal or high-chloride settings (salt spray, pool surrounds), Grade 316 is the recommended choice. For standard outdoor DIY use away from the coast, 304 performs reliably without surface treatment.

Yes. 304 stainless can be TIG or MIG welded to other 304/316 stainless parts using ER308L filler wire. Welding to mild steel is possible but requires a compatible filler (e.g., ER309L) and may affect corrosion resistance at the weld zone. Always clean the weld area and passivate after welding for best results.

Order the next size up from your finished dimension to allow for turning or grinding stock. For example, if your finished disc needs to be Ø95 mm, order the Ø100 mm plate and turn it down on a lathe. This ensures you have enough material to achieve a clean, concentric finished edge.

Yes. Because the plates are Grade 304 (A2), they are fully compatible with A2 stainless bolts, screws, and nuts. Using matched-grade fasteners prevents galvanic corrosion at the joint. A4 (316) fasteners can also be used without compatibility issues.

The 2-piece pack is available for the Ø100 mm diameter and offers a lower per-unit cost when you need a spare or are building symmetrical assemblies (e.g., two matching base pads). For larger diameters (Ø150 mm and above), only the 1-piece option is listed — order multiple quantities at checkout if you need more than one.

Yes. The mill-finish surface is suitable as a starting blank for fiber laser engraving and plasma or waterjet cutting. For laser engraving, the 1–1.5 mm plates are easiest to handle. For plasma cutting custom shapes from the disc, the 2–3 mm thickness gives better edge quality and reduces warping from heat input.