3 Pcs 304 Stainless Steel Mirror Round Sheet Diameter : 60mm, Thickness : 3mm

These discs are made from 304 stainless steel, an austenitic alloy containing approximately 18% chromium and 8% nickel. It is one of the most widely used stainless grades, offering reliable corrosion resistance and good formability for both decorative and functional applications.

Mirror-polished stainless steel can show fine surface marks if handled without care. We recommend keeping the protective film (if included) in place until installation, and using clean cotton gloves when handling the discs to preserve the reflective surface.

304 stainless steel performs well in most indoor environments and light outdoor settings away from salt spray or prolonged chloride exposure. For coastal or high-humidity outdoor applications, 316 stainless steel is generally recommended for superior corrosion resistance.

Yes. At 3 mm thickness, these discs can be drilled with HSS (high-speed steel) or cobalt drill bits using a drill press or hand drill. Using cutting fluid and moderate speed will extend bit life and produce cleaner holes.

304 stainless steel is weldable using MIG or TIG processes with appropriate stainless filler wire (e.g., ER308L). Avoid welding to carbon steel without a suitable barrier or filler, as galvanic corrosion may occur at the joint over time.

For decorative inlays or furniture accents, measure the recess or mounting area and select a disc diameter that fits with 0.5–1 mm clearance. For structural spacers or gasket blanks, match the disc diameter to the bolt circle or housing bore. If you need a custom size, contact us to confirm availability.

A 3 mm thick 304 stainless disc at 60 mm diameter is suitable for light-duty structural roles such as spacers, backing plates, and mounting flanges under moderate load. For heavy-load or high-vibration environments, consult an engineer to verify the disc meets your specific load requirements.