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When a project demands exact tolerances — whether you're shimming a machine bed, cutting a custom gasket, or fabricating a bracket — standard sheet metal is often too thick to be useful. This 304 stainless steel thin foil sheet is designed for engineers, machinists, and serious DIYers who need a flat, consistent metal strip they can cut, bend, or layer to spec without fighting with oversized stock.
Each sheet is made from 304-grade stainless steel and is available in thicknesses from 0.05 mm (≈ 0.002 in) to 1.00 mm (≈ 0.039 in), with sheet sizes of 200 × 1000 mm (≈ 7.9 × 39.4 in) or 300 × 1000 mm (≈ 11.8 × 39.4 in). The rolled strip format keeps the material flat and ready to cut without additional flattening steps.
Typical applications include precision shim stacks for bearing housings and linear rails, thin gaskets for fluid or gas sealing in plumbing and HVAC assemblies, and protective heat shields or wear strips in light fabrication. The corrosion resistance of 304 stainless also makes it a reliable choice for outdoor enclosures, marine-adjacent environments, and food-contact fixtures where mild steel would rust.
| Material | 304 Stainless Steel (18-8) |
|---|---|
| Thickness Range | 0.05 mm – 1.00 mm (0.002 in – 0.039 in) |
| Available Sizes | 200 × 1000 mm / 300 × 1000 mm |
| Surface Finish | See variant options |
| Tensile Strength | Typically 515–720 MPa (74,700–104,400 psi) |
| Yield Strength | Typically ≥ 205 MPa (29,700 psi) |
| Hardness | Typically ≤ 92 HRB (Rockwell B) |
| Chromium Content | 18% |
| Nickel Content | 8% |
| Max Service Temp. | ~870 °C (1598 °F) continuous |
| Magnetic | Slightly magnetic (work-hardened edges may attract) |
| Quantity per Order | 1 sheet per variant selected |
Start by measuring the gap you need to fill with a feeler gauge. For fine adjustments under 0.20 mm, the 0.05 mm or 0.10 mm sheets let you stack multiple layers to reach the exact clearance. For gaps of 0.30 mm and above, a single thicker sheet is usually more stable than a stack of thin ones. If you're unsure, order one sheet at the thinnest increment you think you'll need — it's easier to add a layer than to remove material.
304 stainless has a tensile strength of roughly 515–720 MPa, which is adequate for light-duty brackets and clips. However, thin foil gauges (under 0.50 mm) are not suited to primary structural loads — they are designed for shims, gaskets, heat shields, and similar non-load-bearing uses. For structural parts, consider thicker plate stock and consult an engineer for load calculations.
304 stainless steel resists rust in most outdoor and mildly corrosive environments thanks to its chromium oxide passive layer. It performs well in rain, humidity, and mild chemical exposure. In coastal or high-chloride environments (salt spray, swimming pools), 316 stainless is a better choice because 304 can develop surface pitting over time when exposed to chlorides continuously.
Yes — 304 stainless is weldable using TIG, MIG (with 308L filler), or resistance welding. Very thin gauges (0.05–0.15 mm) require careful heat control to avoid warping or burn-through; a TIG welder with a foot pedal and a backing bar is recommended. Soldering is possible with stainless-compatible flux, though the joint strength will be lower than a welded connection.
It depends on the largest gasket dimension you need to cut. The 200 × 1000 mm sheet suits most pipe flanges up to DN150 and smaller face gaskets. If you're cutting gaskets for larger flanges or need to nest multiple shapes efficiently, the 300 × 1000 mm sheet gives you more usable width and reduces waste. Both sizes are 1000 mm long, so you get the same number of cuts along the length.
For straight cuts, clamp the sheet between two pieces of flat bar stock and score along the edge with a sharp utility knife — the metal will snap cleanly. Aviation tin snips work well for curved cuts; use straight-cut snips for long straight lines to avoid distorting the edge. A laser cutter or waterjet produces the cleanest edges with no burrs. Avoid using an angle grinder on foil-thin gauges as the heat and vibration can warp the sheet.
The sheets are supplied as bare stainless steel without a protective plastic film. The surface finish is a standard mill finish. If you need to protect the surface during handling or fabrication, apply a strip of masking tape or low-tack film before cutting. Remove any tape residue with isopropyl alcohol before final installation.
Ships within 48 hours · Estimated delivery Jun 24 - Jun 29
US$40
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