1 Pcs 0.8mm*300mm*3200mm 304 Stainless Steel Thin Plate Band Foil Sheet

At 0.8 mm (roughly 0.031 in or 20-gauge equivalent), this sheet sits at the boundary between foil and thin plate. It is rigid enough to hold its shape flat on a workbench but flexible enough to bend by hand along the 300 mm width with moderate effort. It is thicker than true shim foil (typically under 0.3 mm) and thinner than structural plate (generally 3 mm and above).

AISI 304 stainless steel forms a passive chromium-oxide layer that resists rust in most outdoor and humid conditions. It performs well in rain, condensation, and mild chemical splash. For prolonged salt-spray or marine environments, 316-grade stainless is generally recommended instead, as 304 can develop surface staining (not structural corrosion) under sustained chloride exposure.

Yes. At 0.8 mm, the sheet can be cut with aviation tin snips (compound-action recommended for clean edges), an angle grinder fitted with a stainless-rated cutting disc, a jigsaw with a bi-metal blade, or a plasma/laser cutter. Always use cutting fluid or coolant when drilling to extend bit life and prevent work-hardening at the cut edge.

Yes. AISI 304 is one of the most weldable stainless alloys. For TIG welding, use ER308L filler rod and back-purge with argon to prevent oxidation on the reverse side. For MIG, use ER308L wire with a 98% Ar / 2% CO₂ or tri-mix shielding gas. At 0.8 mm, heat input should be kept low to minimise distortion — short stitch welds or pulse settings are advisable.

Choose 0.8 mm when you need a lightweight, formable sheet for heat shielding, decorative cladding, shim stock, or thin enclosure panels where structural load is minimal. Move to 1.2–2.0 mm if the panel must resist moderate impact or carry mechanical fasteners under vibration. For load-bearing brackets or structural members, 3 mm or thicker plate is typically required. If you are unsure, contact us with your load and span requirements.

At 3,200 mm in length, the sheet may carry a slight longitudinal curve (coil set) from the rolling and cutting process. Laying it flat on a level surface with weight applied for 24–48 hours typically resolves minor coil set. For precision flat applications, a sheet-metal roller or press brake can be used to straighten the piece before fabrication.

AISI 304 is widely used in food-processing equipment and is generally considered food-safe in its base alloy composition. However, the mill/2B surface finish on this sheet has not been certified or tested for food-contact compliance. If your application requires NSF or FDA food-contact certification, please contact us to confirm before ordering.