Brass Round Tube Pipe — OD 2mm to 80mm, Wall 0.5mm to 15mm, 200mm Length

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Sale price$4.20 USD
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In stock (500 units), ready to be shipped

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Description

Brass Round Tube Pipe — Precision Sizing for DIY, Plumbing & Model Making

Whether you're repairing a plumbing fitting, building a scale model, crafting a custom lamp stand, or fabricating a mechanical assembly, finding a brass round tube pipe in exactly the right outer diameter and wall thickness can be frustrating. Off-the-shelf hardware stores rarely stock the full size range — and ordering the wrong wall thickness wastes both time and money. This listing is designed for makers, hobbyists, machinists, and tradespeople who need a reliable, ready-to-ship brass tube in a specific size.

Each tube is made from brass and measures 200mm (≈7.87") in length. Outer diameters range from 2mm (≈0.08") to 80mm (≈3.15"), with wall thickness options from 0.5mm to 15mm depending on the OD selected. The inner diameter (ID) is calculated as OD minus twice the wall thickness — for example, a 10mm OD with 1mm wall yields an 8mm ID. Size options are listed in the format OD × Wall Thickness × Length (mm).

These brass round tube pipes are well-suited for a wide range of applications: DIY plumbing repairs and compression fitting assemblies, scale model and hobby construction where precise tube nesting is required, decorative metalwork and lamp-making, and light mechanical fabrication such as bushings, spacers, and guide rails. The consistent dimensions and machinable brass material make them a go-to choice for anyone searching for a small diameter brass tube for model making or a thick-wall brass pipe for structural use.

ℹ️ Size Format: All variants are listed as OD × Wall Thickness × Length (mm). Inner diameter = OD − (2 × wall thickness). Confirm your required ID before ordering. All tubes are 200mm (≈7.87") long.

✅ Key Features of These Brass Round Tube Pipes

  • 🔩Wide Size Range — OD from 2mm to 80mm with wall thickness from 0.5mm to 15mm, covering everything from fine hobby tubing to heavy-wall structural pipe in a single listing.
  • 🪛Machinable Brass Construction — Brass is easy to cut, drill, tap, solder, and braze, making these tubes ideal for custom fabrication, brass tube for model engineering, and repair work without specialized tooling.
  • 📏Consistent 200mm Length — Each tube is cut to 200mm (≈7.87"), providing a workable length for most hobby and light industrial applications, and easy to trim shorter with a pipe cutter or hacksaw.
  • 🌊Natural Corrosion Resistance — Brass resists oxidation and performs reliably in humid, wet, and mildly corrosive environments, making it suitable for plumbing fittings, outdoor decorative use, and marine-adjacent projects.
  • 🔗Nesting & Telescoping Compatible — Thin-wall small-OD sizes are designed to slide inside one another for telescoping assemblies — a key requirement for telescoping brass tube sets used in model making and adjustable mechanisms.
  • ⚙️Versatile Application Fit — Works as bushings, spacers, guide rails, decorative trim, compression fitting stock, and structural tubing across DIY, hobby, plumbing, and light manufacturing contexts.

📐 Technical Specifications — Brass Round Tube Pipe

Material Brass
Outer Diameter (OD) Range 2mm (≈0.08") — 80mm (≈3.15")
Wall Thickness Range 0.5mm — 15mm (varies by OD; see variant options)
Length 200mm (≈7.87") per piece
Inner Diameter (ID) OD − (2 × Wall Thickness); see variant options
Size Format OD × Wall Thickness × Length (all in mm)
Finish See variant options
Quantity per Order 1 piece (additional quantities available as variant)
Machinability Suitable for cutting, drilling, tapping, soldering, and brazing
Corrosion Resistance Good — suitable for humid, wet, and mildly corrosive environments
Country of Origin China
Compatibility Standard compression fittings, push-fit connectors, and soldered joints matched to selected OD
⚠️ Confirm your ID before ordering. Inner diameter is not a selectable option — it is determined by the OD and wall thickness you choose. If you need a specific ID, calculate: ID = OD − (2 × Wall Thickness). Contact us if you need help selecting the right size.

❓ Frequently Asked Questions

How do I choose the right outer diameter and wall thickness?

Measure the opening or shaft your tube needs to fit over or inside. The outer diameter (OD) is the full outside measurement; the inner diameter (ID) equals OD minus twice the wall thickness. For example, a 10mm OD with 1mm wall gives an 8mm ID (≈0.31"). When in doubt, size up — it's easier to reduce fit with shims than to enlarge a hole.

What is the standard length of these brass tubes?

All tubes in this listing are 200mm (approximately 7.87 inches) long. If you need a different length, the tube can generally be cut with a pipe cutter, hacksaw, or rotary tool with a cutting disc. Deburr cut ends with a file or deburring tool for a clean finish.

How strong are these brass tubes — can they handle pressure or load?

Brass tubing typically offers good tensile strength for light-to-medium structural and fluid applications. Thicker wall options (2mm and above) are generally suitable for higher-pressure or load-bearing uses. For critical engineering applications, always verify the specific alloy grade and consult a materials engineer.

Can these brass tubes be used outdoors or in wet environments?

Brass has naturally good corrosion resistance and performs well in moist or humid environments. It is generally suitable for outdoor decorative use, plumbing fittings, and marine-adjacent applications. For prolonged saltwater or highly acidic exposure, a protective coating or sealant is recommended to extend service life.

What thread or fitting standards are compatible with these tubes?

These are plain (unthreaded) round tubes. They are compatible with standard compression fittings, push-fit connectors, and soldered joints sized to match the OD you select. For threaded connections, you would need to add fittings or have the tube threaded by a machinist. Always match the fitting's tube OD rating to your selected size.

How do I cut or work with these brass tubes?

Brass is a soft, machinable metal. These tubes can typically be cut with a pipe cutter (for clean square cuts on smaller ODs), a fine-tooth hacksaw, or a rotary tool with a cutting disc. Deburr cut ends with a file or deburring tool. Brass can also be soldered, brazed, drilled, and tapped — making it one of the most workable metals for DIY and hobby fabrication.

Which size should I choose for model making or hobby projects?

For model making and hobby use, smaller OD sizes (2mm–10mm) with thin walls (0.5mm–1mm) are generally the most versatile. They are lightweight, easy to cut, and can be nested inside one another for telescoping assemblies. Check your project plans for the exact OD and ID requirements before ordering.

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

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