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Finding flat, consistently sized metal circles that are ready to use without additional cutting or grinding is a persistent challenge for fabricators, welders, artists, and DIY builders. Mild steel discs laser cut to precise dimensions eliminate that problem — delivering clean, burr-free edges and accurate diameters straight out of the pack, so you can move directly to drilling, welding, painting, or finishing without prep work.
Each disc is laser cut from mild steel (low-carbon steel, typically S235/S275 or equivalent) and supplied as flat, circular blanks. Diameter options range from 50mm (~1.97 in) to 300mm (~11.81 in), with thickness options from 0.3mm (~0.012 in) to 3mm (~0.118 in). Pack quantities of 1, 2, 3, 5, or 10 pieces allow you to order exactly what your project requires without overstocking.
Typical applications include custom backing plates and flanges for pipe and tube fabrication, decorative metal art and signage blanks for powder coating or painting, clock face and dial blanks for craft and maker projects, structural gussets and shim discs for mechanical assemblies, and base plates for welded sculpture and furniture legs — all scenarios where a mild steel laser cut disc provides a reliable, dimensionally accurate starting point.
| Material | Mild Steel (Low-Carbon Steel, S235/S275 or equivalent) |
|---|---|
| Shape | Round disc / circle blank |
| Cut Method | Laser cut |
| Diameter Range | 50 / 55 / 60 / 65 / 70 / 75 / 80 / 85 / 90 / 100 / 120 / 150 / 180 / 200 / 250 / 300 mm |
| Thickness Range | 0.3 / 0.4 / 0.5 / 0.6 / 0.8 / 1.0 / 1.2 / 1.5 / 2.0 / 2.5 / 3.0 mm |
| Surface Finish | Mill finish (bare metal, suitable for painting/coating) |
| Edge Condition | Laser cut, low burr |
| Tensile Strength | Typically 370–500 MPa (S235/S275 range) |
| Yield Strength | Typically 235–275 MPa |
| Magnetic | Yes |
| Pack Quantity | See variant options (1, 2, 3, 5, or 10 Pcs) |
| Weldability | MIG, TIG, stick weld compatible |
For shims, decorative overlays, and thin structural skins, 0.3–0.6mm thickness is appropriate. For general fabrication, brackets, and backing plates, 0.8–1.5mm covers most needs. For structural base plates, heavy flanges, and load-bearing components, 2–3mm provides the necessary rigidity. Diameter selection depends on your component geometry — choose the closest standard size at or above your required finished diameter to allow for any edge cleanup.
These mild steel discs are supplied in mill finish — bare metal without any coating, paint, or galvanizing. This makes them immediately ready for welding, priming, powder coating, or painting. If storing before use, apply a light oil or primer to prevent surface oxidation, as bare mild steel will develop surface rust when exposed to moisture over time.
Yes. Low-carbon mild steel is one of the most weldable metals available. Standard MIG, TIG, and stick welding processes work without special filler materials or pre-heating for thicknesses up to 3mm. For best results, degrease the surface before welding. Thinner discs (0.3–0.5mm) require careful heat management to avoid warping — TIG welding with low amperage is recommended for these gauges.
Yes, mild steel will oxidize and rust when exposed to moisture without a protective finish. For indoor or dry applications, a coat of primer and paint is sufficient. For outdoor or wet environments, powder coating, galvanizing, or a rust-inhibiting primer provides longer-term protection. For temporary storage, a light application of WD-40 or similar rust inhibitor will prevent surface oxidation.
Yes. Mild steel drills cleanly with standard HSS (high-speed steel) or cobalt drill bits. For thinner discs (0.3–0.8mm), use a center punch to prevent the drill from wandering, and clamp the disc securely to prevent spinning. For thicker discs (1.5–3mm), standard drill press or hand drill with appropriate cutting speed and cutting fluid will produce clean holes.
Pack quantities (1, 2, 3, 5, or 10 pieces) vary by diameter and thickness combination — larger and thicker discs are typically available in smaller pack quantities. Select the pack size that matches your project requirement. If you need a specific quantity not shown, multiple packs can be ordered. All discs within a pack are identical in diameter and thickness.
Absolutely. Laser cut mild steel discs are widely used as blanks for decorative metalwork, wall art, clock faces, coasters, and signage. The clean laser-cut edge and flat surface accept paint, powder coat, and patina finishes well. Thinner gauges (0.3–0.8mm) are popular for decorative overlays and etching, while 1–2mm discs are commonly used for functional decorative items that need to hold their shape.
