Brass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass Tubing
Brass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass Tubing
Brass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass Tubing
Brass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass Tubing
Brass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass Tubing
Brass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass Tubing
Brass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass Tubing
Brass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass Tubing
Brass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass Tubing
Brass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass Tubing
Brass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass Tubing
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Brass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass TubingBrass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass TubingBrass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass TubingBrass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass TubingBrass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass TubingBrass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass TubingBrass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass TubingBrass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass TubingBrass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass TubingBrass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass TubingBrass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass Tubing

Brass Round Tube — OD 0.8–19mm, Wall 0.15–3mm, 300mm Length | Precision Brass Tubing

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Beschreibung

Brass Round Tube — Precision Hollow Tubing for Model Making, DIY & Engineering

Finding the exact brass tube size for a repair, prototype, or craft project is frustrating when suppliers only stock a handful of diameters. Whether you're a model maker needing a 1.5mm OD sleeve, a hobbyist fitting a 6mm spacer, or a tradesperson sourcing a 16mm structural liner, having the right OD-to-wall combination on hand saves time and rework.

Each listing covers a single brass round tube, 300mm (≈11.8") in length, available in outer diameters from 0.8mm (≈0.031") to 19mm (≈0.748") and wall thicknesses from 0.15mm to 3mm. The inner diameter (bore) is determined by the OD minus twice the wall thickness — for example, a 6mm OD × 0.5mm wall tube has a 5mm ID. Select your exact OD × ID combination and wall thickness from the variant dropdowns above.

Typical applications include scale model framing and axle sleeves, precision instrument spacers and bushings, decorative hardware and jewelry components, light-duty fluid transfer lines, and DIY repair sleeves for round shafts — all situations where a precise brass hollow round tube with a controlled bore is required.

ℹ️ Size note: OD and ID are listed in millimeters. Wall thickness = (OD − ID) ÷ 2. All tubes are 300mm long. Verify your required bore (ID) before ordering — see the FAQ below for a sizing guide.

✅ Key Features of These Brass Round Tubes

  • 📐190+ Size Combinations — OD range 0.8mm–19mm with wall thicknesses from 0.15mm to 3mm, covering micro-scale model making through medium structural applications in a single product listing.
  • 🔩Consistent Bore Tolerance — The ID is machined to match the stated OD and wall thickness, giving you a predictable inner bore for press-fit, slip-fit, or fluid-transfer use without additional reaming in most cases.
  • ⚙️Free-Machining Brass Alloy — Brass cuts cleanly with standard hand tools, pipe cutters, or lathes, making it straightforward to trim these hollow round tubes to a custom length on-site.
  • 🛡️Natural Corrosion Resistance — The copper-zinc composition of brass provides inherent resistance to moisture and mild corrosion, suitable for indoor plumbing fittings, decorative hardware, and light outdoor use.
  • ✨Bright Mill Finish — Tubes arrive with a clean golden brass surface, ready for use as-is in decorative applications or easy to polish, plate, or paint for finished assemblies.
  • 📦Fixed 300mm Length — Each tube ships at exactly 300mm (≈11.8"), a practical stock length for most hobby and light engineering projects, and long enough to cut multiple shorter pieces from a single tube.

📐 Technical Specifications — Brass Round Hollow Tube

Material Brass (copper-zinc alloy)
Tube Form Round, hollow (seamless or drawn — see variant options)
Outer Diameter (OD) Range 0.8mm (≈0.031") to 19mm (≈0.748")
Inner Diameter (ID) Range Determined by selected OD and wall thickness
Wall Thickness Options 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.5mm, 0.6mm, 0.75mm, 1mm, 1.5mm, 2mm, 3mm
Length 300mm (≈11.8") per piece
Surface Finish Bright mill finish
Quantity per Order 1 piece (per variant selected)
Country of Manufacture China
Applicable Standards Contact us to confirm
Pressure Rating Contact us to confirm — not rated for high-pressure hydraulics
⚠️ Confirm your ID before ordering. The bore (inner diameter) is not listed as a separate option — it is calculated as OD minus twice the wall thickness. Use the size chart in the FAQ below or contact us if you need help selecting the right combination.

❓ Frequently Asked Questions

How do I choose the right OD and wall thickness for my project?

Start by measuring the hole or shaft your tube needs to fit over or inside. The OD (outer diameter) determines the external fit; the ID (inner diameter) determines the bore. Wall thickness = (OD − ID) ÷ 2.

For example, a 6mm OD × 5mm ID tube has a 0.5mm wall. If you need a tube to slide over a 5mm rod, choose an ID slightly larger than 5mm — such as 6mm OD × 5mm ID (≈0.197" OD). If you need a tube to fit inside a 6mm hole, choose an OD slightly under 6mm.

What load or pressure can these brass tubes handle?

Brass tubing is generally used for light structural, decorative, and fluid-transfer applications rather than high-pressure hydraulics. Thicker-walled variants (0.75mm–3mm wall) offer greater rigidity and can typically handle moderate mechanical loads. For pressure-rated applications, please contact us to confirm suitability for your specific use case.

Are these tubes suitable for outdoor or corrosion-prone environments?

Brass has naturally good corrosion resistance and performs well in moist or mildly corrosive environments. It is generally suitable for indoor plumbing fittings, decorative outdoor hardware, and marine-adjacent applications. For prolonged saltwater or highly acidic exposure, additional protective coating is recommended.

What thread or fitting standards are compatible with these tubes?

These are plain (unthreaded) round brass tubes. They are compatible with standard metric fittings, compression fittings, and push-fit connectors sized to match the OD. For threaded connections, the tube OD must match the fitting's bore. Contact us to confirm compatibility with your specific fitting standard.

Can I cut or machine these tubes to a shorter length?

Yes. Brass is a free-machining alloy and can be cut with a pipe cutter, hacksaw, or lathe. A pipe cutter or fine-tooth saw will produce the cleanest edge. Deburr the cut end with a file or deburring tool before use. All tubes ship at 300mm (≈11.8") and can be cut to your required length on-site.

How do I decide between a thin wall and a thick wall tube?

Thin-wall tubes (0.15mm–0.3mm) are typically chosen when maximum bore is needed within a tight OD constraint — common in model making, jewelry, and precision instruments. Thick-wall tubes (0.5mm–3mm) provide greater rigidity and crush resistance, making them better suited for structural spacers, bushings, and fluid lines. When in doubt, a 0.5mm wall is a practical general-purpose starting point.

What is the material alloy and finish of these tubes?

These tubes are made from brass (a copper-zinc alloy), which provides a warm golden appearance, good machinability, and moderate corrosion resistance. The finish is typically a bright mill finish. Surface oxidation may occur over time and can be removed with a brass polish or mild abrasive.

🛒 Select your size (OD × ID) and wall thickness above, then add to cart — ships from our US warehouse.

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