304 Stainless Steel Square Plate Thick 0.01-0.4mm Metal Polished Plate 100x100mm

Measure the gap you need to fill with a feeler gauge or dial indicator, then select the closest available thickness. For gaps between listed sizes, you can stack two plates — for example, a 0.03mm and a 0.02mm plate together equal 0.05mm. Always verify the final stack height with a micrometer before assembly.

At the thicknesses offered here (0.01–0.40mm), these plates are intended for shimming, gasketing, and light fabrication rather than load-bearing structural applications. 304 stainless has a tensile strength of approximately 515 MPa (75 ksi), but at sub-millimeter thickness the plates will flex under moderate load. For structural brackets or load-bearing parts, thicker stock is recommended.

304 stainless steel resists rust well in most indoor and sheltered outdoor environments. It can develop surface staining or pitting if exposed to chloride-rich environments (such as coastal salt air or pool chemicals) for extended periods. For marine or high-chloride applications, 316-grade stainless is a better choice. Wipe plates dry after contact with water to maintain the polished finish.

Yes. Thinner plates (0.01–0.10mm) can be cut with sharp scissors, a craft knife, or tin snips. Thicker plates (0.15–0.40mm) are best cut with aviation snips, a rotary tool with a cutting disc, laser, or waterjet. Drilling is practical at 0.20mm and above using a sharp HSS or cobalt drill bit with cutting fluid. Clamp the plate firmly to prevent it from spinning.

304 stainless steel is widely used in food-processing equipment and is generally considered food-safe when properly cleaned. However, these plates are sold as raw material and have not been certified for food-contact or medical-device use. If your application requires compliance with FDA, NSF, or ISO 13485 standards, please contact us to confirm before ordering.

The thinner options (0.01–0.05mm) are suited for precision shimming, electrical insulation layers, and applications where minimal added height is critical. Mid-range thicknesses (0.10–0.20mm) work well as gasket blanks, spacers, and light-duty shims. The thicker options (0.25–0.40mm) offer more rigidity and are better for small fabricated parts, backing plates, and applications where the plate needs to hold its shape under light pressure.

Select the quantity that matches your project. A single piece (qty 1) is ideal for one-off repairs or test fits. Packs of 3 or 5 are practical for projects requiring multiple shim points or when you want spares on hand. A pack of 10 offers the best per-piece value for production runs, recurring maintenance tasks, or workshop stock.