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When a project demands exact gap control — whether you're aligning machinery, building a custom bracket, or crafting fine metalwork — finding a 304 stainless steel thin plate sheet in the right thickness is half the battle. Engineers, hobbyists, and fabricators who need repeatable, corrosion-resistant shim stock in a manageable sheet size will find this listing covers the full range from ultra-thin foil to structural plate.
Each sheet measures 200×300mm (approximately 7.87″×11.81″) and is cut from 304-grade austenitic stainless steel. Thickness options span 0.02mm to 1mm (0.0008″–0.039″), covering everything from delicate foil gauges (0.02–0.09mm) through standard shim thicknesses (0.1–0.5mm) up to light structural plate (0.6–1mm). The 2B mill finish provides a smooth, consistent surface suitable for further processing or direct use.
Typical applications include precision shimming and levelling of machine beds, CNC fixtures, and bearing housings; thin-sheet metalwork for model engineering, jewellery blanks, and decorative inlays; and prototyping gaskets or custom spacers where stainless steel's resistance to moisture and mild chemicals is required.
| Material | 304 Austenitic Stainless Steel |
|---|---|
| Grade | 304 (UNS S30400) |
| Sheet Size | 200×300mm (7.87″×11.81″) |
| Thickness Range | 0.02mm–1mm (0.0008″–0.039″) — see variant options |
| Surface Finish | 2B Mill Finish |
| Chromium Content | 17–19% |
| Nickel Content | 8–10.5% |
| Tensile Strength (typical) | 515 MPa (74,700 psi) |
| Quantity per Order | 1 piece |
| Weight | See variant options (varies by thickness) |
For machine tool shimming and bearing housing alignment, 0.05–0.2mm is the most commonly used range. Ultra-thin gauges (0.02–0.04mm) suit fine optical or instrument work, while 0.3–0.5mm works well for heavier structural shimming. If you're unsure, 0.1mm is a versatile starting point that can be stacked.
At gauges below 0.1mm, the sheet is best used as shim stock or foil — not as a load-bearing structural element. From 0.5mm upward, the sheet has sufficient rigidity for light brackets, guards, and enclosure panels. For structural applications requiring higher strength, consider 316 or duplex grades.
304 stainless steel performs well in most indoor and sheltered outdoor environments. It resists moisture, humidity, and mild chemical exposure. In coastal or chloride-rich environments (e.g., near saltwater), surface staining can occur over time; 316 grade offers better chloride resistance for those conditions.
Yes. Gauges up to 0.3mm can be cut cleanly with sharp tin snips or a craft knife and steel rule. Thicker gauges (0.4–1mm) are best cut with a metal shear, angle grinder with a thin cutting disc, or laser cutter. Avoid using tools designed for mild steel only, as stainless work-hardens quickly.
The sheet fits within the A4 work area (210×297mm) with a small margin. Most desktop CO₂ and fibre laser cutters with an A4 or larger bed can process this sheet directly. Vinyl cutters are not suitable for metal — use a laser or mechanical shear instead.
Each variant is sold as 1 piece. To order multiple thicknesses, add each variant to your cart separately. If you need larger quantities or custom sizes, please contact us to discuss options.
304 is the standard general-purpose grade, suitable for most indoor, light outdoor, and non-chloride environments. 316 adds molybdenum (2–3%), giving it significantly better resistance to chlorides, salt spray, and certain acids. For most shimming, fabrication, and hobby uses, 304 is sufficient and more cost-effective.
Ships within 48 hours · Estimated delivery Jul 21 - Jul 26
US$40
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