304 Stainless Steel Plate Foil Sheet Thin 0.1 0.05 0.15 0.2 0.3 0.4 0.5mm Thick

For most machinery alignment shims, 0.05 mm to 0.2 mm is the typical working range. If you need to fill a gap of less than 0.1 mm, start with the 0.05 mm sheet. For gaps between 0.1 mm and 0.5 mm, you can stack multiple sheets or select the closest single thickness. The 0.3 mm–0.5 mm options are better suited to structural spacers where some rigidity is needed.

304 stainless steel retains useful mechanical strength up to approximately 870 °C (1600 °F) in intermittent service, making it a practical choice for DIY heat shields around exhaust components or engine bays. For continuous high-temperature exposure above 500 °C, consider 309 or 310 grade instead. At the thin gauges offered here (0.05–0.5 mm), the sheet acts primarily as a radiant heat barrier rather than a structural component.

304 stainless steel performs well in indoor and mildly humid outdoor environments. In coastal or high-chloride environments (salt spray, pool surrounds), surface staining or pitting can develop over time. For those conditions, 316-grade stainless steel — which adds molybdenum for improved chloride resistance — is a better choice. If your application is indoors or in a sheltered outdoor location, 304 is generally sufficient without additional coating.

Yes. At 0.05 mm to 0.2 mm thickness, aviation snips or heavy-duty scissors can make clean straight cuts. For thicker options (0.3 mm–0.5 mm), a metal nibbler, angle grinder with a thin cutting disc, or laser cutter will give cleaner edges. CNC routers with carbide tooling also work well across all thicknesses. Always deburr cut edges before handling to avoid injury.

The 305 mm × 1000 mm sheet (~12 in × 39 in) is a compact format suited to workbench projects, small gaskets, and short shim strips. The 200 mm × 3000 mm sheet (~7.9 in × 118 in) is narrower but nearly three times longer, making it ideal for continuous shim tape, long heat shield runs, or projects where you need to cut multiple strips from a single piece. Choose based on the longest dimension your project requires.

The 0.05 mm difference may seem minor, but it represents a 50% increase in material thickness — and therefore stiffness and weight per unit area. If your application requires the sheet to conform to a curved surface or be folded without cracking, the thinner 0.1 mm option is more forgiving. If you need slightly more rigidity or are stacking fewer layers to reach a target gap, 0.15 mm reduces the number of sheets required. When in doubt, order one of each and test fit before committing to a larger quantity.

304 stainless steel is widely used in food processing equipment and is generally considered food-safe in its bulk form. However, these sheets are supplied as raw mill-finish stock and have not been certified or tested for specific food-contact or medical-device compliance. If your application requires documented food-grade or biocompatibility certification, please contact us to confirm before ordering.