Thick 0.01 to 3 mm 301 Stainless Steel Sheet Plate 100x100, 200x300, 300x300 mm

Measure the gap you need to fill with a feeler gauge, then select the thickness that matches or can be stacked to match. For gaps under 0.1 mm, start with the 0.01–0.05 mm options. For structural shimming between machine beds or bearing housings, 0.2–0.5 mm is the most common range. Stacking two pieces of the same thickness is acceptable for fine-tuning, but a single correctly sized shim is always more stable.

301 in cold-rolled condition has a tensile strength of 515–860 MPa depending on temper, which is higher than annealed 304. For thin shim applications the sheet is not typically the structural member — it fills a gap between two rigid components. For flat spring or clip applications where the sheet itself carries cyclic load, 301's work-hardening behavior makes it a reliable choice up to moderate stress levels. For heavy structural plate applications, consult an engineer and consider thicker stock.

301 stainless steel forms a passive chromium oxide layer that resists rust in dry indoor and mildly humid environments. It is not rated for continuous salt-spray or fully submerged marine exposure — for those conditions, 316 grade is the standard recommendation. In typical workshop, HVAC, appliance, or light outdoor-covered environments, 301 sheet performs reliably without surface treatment.

Yes. Thin gauges (0.01–0.2 mm) can be cut cleanly with sharp metal shears or a craft knife against a steel rule. Thicker gauges (0.3–1 mm) respond well to aviation snips, a nibbler, angle grinder with a thin cutting disc, or laser/waterjet cutting. For drilling, use cobalt or carbide-tipped bits with cutting fluid and moderate speed to avoid work-hardening the hole edge. Avoid high-speed dry drilling, which can harden the material and dull standard HSS bits quickly.

301 has a higher carbon and manganese content than 304, which gives it greater tensile strength and more pronounced work-hardening under cold forming. This makes 301 the preferred choice for spring-temper parts, clips, and shims where the material needs to resist permanent deformation. 304 offers slightly better corrosion resistance and is easier to weld without sensitization. For pure shimming or flat blanking where forming is minimal, either grade works; choose 301 when spring-back or higher strength matters.

The Qty option lets you select 1 or 2 pieces of the same size and thickness combination in a single line item. Ordering 2 Pcs gives you a spare for test fitting, stacking to double the shim thickness, or keeping one piece as a template. The per-piece price is lower on the 2 Pcs variants, so if you anticipate needing more than one, selecting 2 Pcs is the more economical choice.

Each piece is deburred before shipping. Edges are flat and smooth enough for direct handling without gloves for most thicknesses. For the thinnest gauges (0.01–0.05 mm), the foil-like edges can flex and feel sharp if bent; handle those pieces with care or use light leather gloves. If you are pressing a shim into a tight channel, a quick pass with a fine file or 400-grit wet-dry paper on the leading edge takes only seconds and ensures a clean fit.