Brass Round Tube — Hollow OD 0.8–3.5mm × 300mm, Multiple Wall Thickness Options

Start with the outer diameter (OD) that fits your application — for example, if you need a tube to slide over a 1mm rod, choose an ID slightly larger than 1mm. Wall thickness determines strength: thinner walls (0.15–0.2mm) are generally used for lightweight decorative work, while thicker walls (0.5–1mm) are typically chosen for structural or load-bearing applications. Remember: ID = OD − (2 × wall thickness). All tubes in this listing are 300mm (≈11.8") long.

Each tube is 300mm long, which is approximately 11.8 inches (≈11 13/16"). This is a standard working length suitable for most model making, jewelry, and precision DIY projects. It can be cut shorter with a fine-tooth saw or tube cutter.

Brass generally offers good tensile strength for its weight. Thicker-walled variants (0.5mm–1mm wall) are typically suitable for light structural use in models and hobby applications. For heavy load-bearing or industrial structural use, we recommend consulting an engineer and verifying the specific alloy grade. Thin-walled variants (0.15–0.25mm) are best suited for decorative or non-structural roles.

Brass has inherent corrosion resistance and generally performs well in mildly humid or indoor-outdoor conditions. In highly corrosive environments — such as salt spray or prolonged moisture exposure — a protective lacquer or clear coat is typically recommended to maintain appearance and slow patina development.

These are plain, unthreaded hollow round tubes. They are not pre-tapped or threaded. Compatibility with fittings depends on the OD and ID you select — a tube with a specific OD can typically be used as a sleeve or bushing over a matching rod or shaft. Please verify your required dimensions against fitting specifications before ordering.

Yes. Brass is generally easy to cut with a fine-tooth saw, tube cutter, or rotary tool. It can also be drilled, filed, and soldered. For very thin-walled variants (0.15–0.2mm wall), use a sharp blade and support the tube to avoid deforming the cross-section during cutting.

For fine jewelry and micro-scale models, OD sizes of 0.8mm–1.5mm with thin walls (0.15–0.25mm) are typically preferred. For larger architectural models or structural hobby frames, OD sizes of 2mm–3.5mm with walls of 0.3mm–0.5mm are generally more appropriate. Always cross-reference the ID to ensure clearance for any internal rod or wire.