304 Stainless Steel Sheet Metal — Brushed & Polished Finish, 0.01–2.5mm Thick

For light decorative or shielding work, thicknesses of 0.01–0.1mm are typically sufficient. For structural brackets or load-bearing applications, 0.5mm and above is generally recommended. As a quick reference: 0.05mm ≈ 0.002", 0.5mm ≈ 0.020" (20 gauge), 1mm ≈ 0.039", 2mm ≈ 0.079". When in doubt, order a single piece of your target thickness first to verify fit before buying a larger pack.

304 stainless steel generally has a tensile strength of approximately 515 MPa (75,000 psi) and a yield strength of around 205 MPa (30,000 psi). Actual load capacity depends on sheet thickness, span, and support conditions. For structural calculations, consult an engineer using the specific thickness you select.

304 stainless steel offers good corrosion resistance in most indoor and mildly outdoor environments. It is generally suitable for humid or wet conditions. However, prolonged exposure to chloride-rich environments — such as coastal saltwater or de-icing salts — may cause surface staining or pitting over time. For highly corrosive outdoor settings, 316 stainless steel is typically recommended instead.

These sheets can be drilled and tapped to accept standard metric (M2–M10) or imperial (UNC/UNF) fasteners depending on thickness. Thinner sheets (under 0.5mm) are generally too thin for tapping and are typically joined by riveting, spot welding, or adhesive bonding. Always pre-drill with a cobalt or carbide bit for clean holes in stainless steel.

The 100×100mm (≈3.9"×3.9") sheets are well-suited for small repairs, prototyping, shim stock, or craft projects. The 200×300mm (≈7.9"×11.8") sheets provide more material for larger panels, heat shields, or fabrication blanks. Both sizes are available across the same thickness range, so you can mix and match based on your project footprint.

Yes. Thin gauges under 0.1mm can typically be cut with sharp scissors or a craft knife on a cutting mat. Gauges from 0.1mm to 0.5mm work well with aviation tin snips. Heavier gauges (0.5mm and above) are best cut with an angle grinder, jigsaw with a metal blade, or laser/plasma cutter. Always wear cut-resistant gloves and eye protection when working with sheet metal.

304 stainless steel is generally weldable using TIG, MIG, or spot welding. Thinner sheets (under 0.1mm) require careful heat control to avoid warping or burn-through — a pulse TIG setting is typically recommended. Soldering is possible with stainless-compatible flux, though welding generally produces a stronger, cleaner joint. Post-weld passivation is recommended to restore corrosion resistance at the heat-affected zone.