Mirror Polished Shiny Stainless Steel 201 Grade Sheet Metal Plate 250x 150x 2mm

201 grade replaces some of the nickel content found in 304 with manganese, which reduces material cost while maintaining an austenitic structure. For indoor decorative panels, signage, and light fabrication, 201 performs well. In environments with prolonged moisture exposure, salt air, or chemical contact, 304 grade offers superior corrosion resistance and is the better choice.

Mirror-polished stainless steel is susceptible to surface scratches during handling and cutting. It is recommended to keep the protective film (if supplied) in place until the sheet is fully positioned, and to use soft-jaw clamps or felt-backed fixtures when securing the sheet for cutting. Fine scratches can often be buffed out with a stainless steel polishing compound.

Yes. At 2mm thickness, this sheet can be cut with a jigsaw fitted with a bi-metal or stainless-rated blade, an angle grinder with a thin cutting disc, or aviation snips for straight cuts. Laser cutters and plasma cutters rated for stainless steel also work well. Always deburr cut edges with a file or deburring tool before handling the finished piece.

201 grade provides moderate corrosion resistance and is appropriate for sheltered outdoor environments — such as under an eave, inside a covered patio, or in a garage setting. It is not recommended for direct, prolonged exposure to rain, coastal salt air, or standing water. For fully exposed outdoor applications, 304 or 316 grade stainless steel is a more durable option.

This listing is specifically for the 250mm × 150mm × 2mm format. If your project requires a different size or thickness, please check our other listings or contact us to confirm availability. As a general guide: 1–1.5mm is suitable for lightweight decorative facing; 2mm works well for enclosure panels and structural facing; 3mm and above is used where rigidity under load is required.

201 grade stainless steel is slightly magnetic due to its manganese-alloyed composition, unlike fully non-magnetic 304 grade. In most decorative and fabrication applications this has no practical impact, but if your project requires a fully non-magnetic material (e.g., near sensitive electronics or MRI-adjacent environments), 304 grade is the appropriate choice.

Yes. 201 stainless steel is weldable using MIG, TIG, or spot welding processes with appropriate stainless filler wire. It can also be bent on a press brake or folded with a sheet metal folder. A minimum bend radius of approximately 2–3× the material thickness is recommended to avoid cracking along the bend line. Post-weld passivation or pickling is advisable to restore corrosion resistance at the weld zone.