Stainless Steel Plate Sheet 1mm 1.5mm 2mm 3mm Thickness Metal Panel Solid Board

For light-duty backing plates (wall anchors, cabinet reinforcement), 1 mm or 1.5 mm is typically sufficient. For applications that bear load or experience vibration — such as machine mounts or heavy bracket gussets — 2 mm or 3 mm provides meaningfully greater rigidity. When in doubt, size up one step; the weight difference is modest but the stiffness gain is significant.

304 stainless steel performs well in most outdoor and humid indoor environments. It resists rust from rain, condensation, and mild cleaning agents. However, it is not recommended for prolonged exposure to salt spray (marine environments) or concentrated chloride solutions — for those conditions, 316-grade stainless is the appropriate choice.

Yes, for most home workshops. A 4.5" angle grinder with a thin metal cut-off disc handles all four thicknesses cleanly. A jigsaw fitted with a bi-metal blade works well for curved cuts on 1–2 mm sheets. For 3 mm, slower feed rates and cutting fluid (or even water) help extend blade life. Standard HSS drill bits work for holes; cobalt-tipped bits are preferred for 3 mm.

Yes. These are cut from flat-rolled stock and are supplied as flat panels. Minor surface marks from handling may be present on the mill finish, but dimensional flatness and squareness are maintained within standard sheet metal tolerances (typically ±0.5 mm on cut dimensions). If your application requires tighter tolerances, contact us to confirm before ordering.

Order the smallest panel that fully contains your finished part, leaving enough material for your cut lines and any clamping margin. For example, if your finished piece is 85×85 mm, the 100×100 mm panel gives you adequate clearance. If your part is 90×180 mm, the 100×200 mm panel is the right starting point.

Yes. 304 stainless steel is weldable using TIG, MIG (with ER308L filler), or spot welding processes. For brazing, use a silver-based brazing alloy rated for stainless. Clean the surface with acetone or isopropyl alcohol before welding to remove any handling oils and reduce the risk of porosity or discoloration.

For radiant heat shielding (e.g., behind a wood stove, under an appliance, or as an oven liner), 1 mm stainless is a common and effective choice — it reflects radiant heat and does not combust. For applications involving direct flame contact or sustained temperatures above 870 °C (1600 °F), a higher-grade alloy should be considered. Contact us to confirm suitability for your specific setup.