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Finding a small-diameter metal tube that's straight, burr-free, and cuts cleanly is harder than it sounds — especially when you need a specific size for a scale model, RC frame, or jewelry piece. These brass round tubes give hobbyists, makers, and bench craftspeople a reliable stock material in 20 outer-diameter options, all cut to a consistent 300mm (≈11.8") length.
Each tube is made from C260 cartridge brass (CuZn30), with a wall thickness of 0.3mm across most sizes and 0.35mm on the 1.5mm OD variant. Outer diameters range from 1mm (≈0.039") to 12mm (≈0.472"), covering the most-used sizes in fine-scale work. The 300mm length ships flat and fits standard storage tubes or project boxes without trimming.
Typical applications include scale model structural members and antenna masts, RC aircraft and boat fuselage tubes, pen-turning barrel blanks, jewelry findings and spacer tubes, and telescope focuser draw-tubes — anywhere a lightweight, solderable, machinable metal tube is needed in a precise metric size.
| Material | Brass (C260 cartridge brass / CuZn30) |
|---|---|
| Outer Diameter (OD) | 1mm, 1.2mm, 1.5mm, 1.6mm, 1.8mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm |
| Wall Thickness | 0.3mm (all sizes); 0.35mm (1.5mm OD variant only) |
| Length | 300mm (≈11.8") |
| Inner Diameter (ID) | OD − (2 × wall thickness) — see variant options |
| Finish | Mill finish (natural brass) |
| Tube Profile | Round / circular cross-section |
| Pressure Rating | Not rated for hydraulic or pneumatic pressure |
| Quantity per Order | 1 tube per unit (see variant options for size) |
| Country of Origin | China |
Measure the opening or shaft your tube needs to fit over or inside. For a sliding fit, choose an OD slightly smaller than the receiving hole. For a press fit, match OD to hole diameter. Our range covers 1mm through 12mm in 0.5–1mm increments, so you can typically find the exact size you need. If you're working in inches: 1mm ≈ 0.039", 6mm ≈ 0.236", 12mm ≈ 0.472".
Most variants have a 0.3mm wall thickness. The 1.5mm OD variant is available in 0.35mm wall. These are thin-wall tubes designed for lightweight structural and decorative applications. The inner diameter equals OD minus twice the wall thickness — for example, a 6mm OD / 0.3mm wall tube has an ID of 5.4mm.
Brass is naturally corrosion-resistant and generally performs well in dry or mildly humid outdoor environments. For prolonged outdoor or marine exposure, a clear lacquer or protective coating is typically recommended to prevent tarnishing over time.
Yes. The outer diameters follow standard metric sizing, making them generally compatible with metric couplings, bushings, and sleeves. Always verify the inner diameter (OD minus 2× wall thickness) when fitting over a shaft or rod to ensure clearance.
Yes. Brass machines and solders easily with standard tools. Use a fine-tooth saw or dedicated tube cutter for clean cuts with minimal burr. Bending is possible with a tube bender or mandrel to avoid kinking — especially important on smaller diameters under 3mm. Brass accepts soft solder and silver solder well for joining.
These are decorative and light-structural-grade thin-wall tubes, not rated for hydraulic or pneumatic pressure. They are generally suitable for light loads in scale models, RC frames, and craft assemblies. For load-bearing or pressure applications, a thicker-wall brass tube is typically recommended.
These tubes are commonly used in scale model building (structural members, antenna masts), RC aircraft and boat frames, jewelry making (spacers, findings), pen turning (barrel blanks), telescope focuser draw-tubes, and general DIY prototyping. The 300mm length is convenient for most bench-scale projects without needing to cut down longer stock.
Ships within 48 hours · Estimated delivery Jun 24 - Jun 29
US$40
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