Brass Round Tube — OD 15–80mm, Wall 1–5mm, 300mm Length

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Sale price$32.06 USD
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In stock (500 units), ready to be shipped

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Description

Brass Round Tube 300mm — Precision Hollow Tubing for DIY, Plumbing & Model Making

Finding hollow brass tubing that's dimensionally accurate enough for precision work — and available in the exact wall thickness you need — is harder than it should be. Whether you're a hobbyist building scale models, a tradesperson fabricating custom fittings, or a DIYer replacing worn bushings and spacers, this brass round tube gives you a reliable, machinable starting point without ordering from an industrial supplier.

Each piece is a solid-wall brass round tube, 300mm (≈11.8") long, available in outer diameters from 15mm (≈0.59") to 80mm (≈3.15") and wall thicknesses of 1mm, 1.5mm, 2mm, 2.5mm, 3mm, and 5mm. The inner diameter is determined by the OD minus twice the wall thickness — all combinations are listed clearly in the variant selector. Material is brass (copper-zinc alloy), with a natural bright finish.

Typical applications include custom lamp post and chandelier stems, model engineering and clockwork frames, plumbing stub-outs and compression fitting adapters, bearing spacers and shaft sleeves in light machinery, and decorative architectural metalwork. The 300mm length suits bench-cut projects and fits standard hobby lathes for further turning or threading.

ℹ️ Compatibility note: These are metric-dimensioned tubes. Verify your required OD, ID, and wall thickness against the variant options before ordering. For compression fitting use, match the tube OD to your fitting's stated pipe size.
⚠️ Size confirmation: Inner diameter = Outer diameter − (2 × Wall thickness). If you need a specific bore size, calculate accordingly or contact us to confirm before purchasing.

✅ Key Features of These Brass Round Tubes

  • 🔩Wide Size Range — OD from 15mm (≈0.59") to 80mm (≈3.15") with wall thicknesses of 1, 1.5, 2, 2.5, 3, and 5mm, covering most DIY and light industrial brass hollow tubing needs in a single listing.
  • ⚙️Machinable Brass Alloy — Copper-zinc brass cuts cleanly on a lathe, drills without wandering, and accepts soldering and brazing — making it a go-to material for custom brass tube fabrication and model engineering projects.
  • 📏Fixed 300mm Length — Each tube is 300mm (≈11.8") long, a practical bench length that fits most hobby lathes and leaves enough material for cutting to final size with minimal waste.
  • 🛡️Corrosion-Resistant Material — Brass naturally resists oxidation and performs well in humid or moist environments, making these tubes suitable for indoor plumbing stubs, decorative outdoor fixtures, and marine-adjacent applications.
  • 🔧Solderable & Threadable — The wall thickness options (up to 5mm) provide enough material for tapping threads or press-fitting into bores — useful for custom brass bushing and sleeve applications where a secure mechanical connection is needed.
  • ✂️Ready to Cut and Finish — Supplied with a natural bright brass finish. The consistent wall thickness and round profile make these tubes straightforward to cut with a pipe cutter or hacksaw and finish with standard metalworking tools.

📐 Technical Specifications — Brass Round Hollow Tube

Material Brass (copper-zinc alloy)
Finish Natural bright brass (uncoated)
Tube Form Round hollow tube (seamless or drawn — see variant options)
Outer Diameter (OD) 15mm (≈0.59") to 80mm (≈3.15") — see variant selector
Wall Thickness 1mm / 1.5mm / 2mm / 2.5mm / 3mm / 5mm — see variant selector
Inner Diameter (ID) OD − (2 × Wall Thickness) — see variant selector
Length 300mm (≈11.8")
Quantity per Order 1 piece per variant selected
Machinability Suitable for turning, drilling, tapping, soldering, and brazing
Corrosion Resistance Good — suitable for humid/indoor environments; lacquer recommended for prolonged outdoor use
Country of Origin See variant options / Contact us to confirm

❓ Frequently Asked Questions

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

Measure the bore or shaft you need to fit around, then add twice the wall thickness to get the outer diameter. For example, if you need a 20mm bore with a 2mm wall, select OD 24mm × ID 20mm. Wall thickness affects both strength and weight — thicker walls (3–5mm) are generally better for structural or load-bearing applications, while thinner walls (1–1.5mm) suit lightweight decorative or model-making uses.

In imperial terms: 25mm ≈ 1", 50mm ≈ 2", 75mm ≈ 3".

What load or pressure can these brass tubes handle?

Brass round tube typically offers good compressive and tensile strength for general-purpose use. Exact load capacity depends on wall thickness, outer diameter, and application. Thicker-walled variants (3–5mm) are generally suitable for moderate structural loads. For high-pressure fluid systems, please consult an engineer and confirm ratings with us before ordering.

Can these tubes be used outdoors or in wet environments?

Brass has inherent corrosion resistance and performs well in moist or humid environments. It is generally suitable for indoor plumbing, marine decorative applications, and light outdoor use. For prolonged saltwater or chemical exposure, a protective lacquer or sealant coating is recommended.

Are these tubes compatible with standard plumbing fittings?

These are metric-dimensioned brass round tubes. Compatibility with standard plumbing fittings depends on the specific OD and wall thickness selected. In most cases they can be used with compression fittings sized to match the OD. For threaded connections, the tube would typically need to be machined or fitted with an appropriate adapter. Contact us to confirm compatibility with your specific fitting.

Can I cut, drill, solder, or machine these tubes?

Yes. Brass is one of the most machinable metals available. These tubes can generally be cut with a pipe cutter or hacksaw, drilled, tapped, soldered, and turned on a lathe. The material machines cleanly with minimal burring, making it a popular choice for precision model making and custom fabrication projects.

How do I select the right wall thickness for my project?

For decorative or lightweight applications (lamp stands, model frames), 1–1.5mm wall thickness is typically sufficient. For structural spacers, bushings, or moderate load-bearing uses, 2–2.5mm is generally recommended. For heavy-duty applications or where significant wall material is needed for threading or machining, choose 3mm or 5mm wall thickness.

What is the exact length of each tube, and can I order a different length?

Each tube is 300mm (approximately 11.8") long. This is a fixed length for all variants in this listing. If you need a different length, please contact us — custom lengths may be available.

🛒 Select your outer diameter, wall thickness above, then add to cart — ships from our US warehouse.

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