Stainless Steel Round Plate Sheet Disc 20mm-120mm Diameter 10mm-50mm Thickness

Start with your drawing or the mating part dimensions. The diameter (Dia) is the outer edge-to-edge measurement of the disc; the thickness (T) is the face-to-face depth. If you need a flange, measure the bolt circle and add enough material for the flange wall. When in doubt, order one piece first to verify fit before committing to a 5-pack.

The exact alloy grade is not specified in the listing. If your application requires a certified grade (e.g., 304, 316, or 316L for marine or food-contact use), please contact us to confirm before ordering. For general fabrication and DIY use where a specific certification is not required, the material provides standard stainless corrosion resistance.

No. Every disc ships as a solid, undrilled blank. All hole patterns, threads, counterbores, and surface finishing must be performed by the end user. This gives you full control over the final geometry to match your specific drawing or assembly requirement.

Yes. Stainless steel round plate stock in this thickness range is compatible with TIG and MIG welding processes when the correct filler rod and shielding gas are used. For dissimilar-metal joints (e.g., stainless to mild steel), use an appropriate transition filler and consult a welding reference for pre-heat and post-weld treatment recommendations.

Stainless steel work-hardens if the cutting tool dwells or rubs without cutting. Use sharp HSS or carbide tooling, maintain a consistent feed rate, apply cutting fluid or coolant throughout, and avoid interrupted cuts where possible. For drilling, use a center punch to prevent walking, and step up through drill sizes on larger holes rather than plunging a large bit directly.

The 5 Pcs pack is priced separately and typically offers a lower per-piece cost than purchasing five individual 1 Pcs units. Compare the listed prices for your chosen size in both the 1 Pcs and 5 Pcs variants before adding to cart to confirm the saving for your specific size combination.

The discs are supplied in a mill or saw-cut finish consistent with standard plate stock. Faces are flat and parallel but are not polished or ground to a mirror finish. If your application requires a specific Ra surface roughness or a brushed/polished appearance, plan for a secondary finishing operation after receiving the blanks.