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home > Brass Round Tube — OD 1mm to 12mm, 0.3mm Wall, 500mm Length > Brass Round Tube — OD 1mm to 12mm, 0.3mm Wall, 500mm Length

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Brass Round Tube — OD 1mm to 12mm, 0.3mm Wall, 500mm LengthBrass Round Tube Precision Hollow Tubing for Model Making, Jewelry & DIY Fabrication Whether you're building a scale model, crafting custom jewelry, assembling an RC frame, or prototyping a precision instrument, finding a brass round tube in exactly the right diameter is often the hardest part. Off the shelf hardware store stock rarely covers the sub 10mm range, and ordering from overseas means long waits and inconsistent quality. These brass round

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

Whether you're building a scale model, crafting custom jewelry, assembling an RC frame, or prototyping a precision instrument, finding a brass round tube in exactly the right diameter is often the hardest part. Off-the-shelf hardware store stock rarely covers the sub-10mm range, and ordering from overseas means long waits and inconsistent quality. These brass round tubes are stocked in 18 OD sizes from 1mm to 12mm, all with a consistent 0.3mm wall thickness, so hobbyists, makers, and small-shop fabricators can get the exact fit they need without compromise.

Each listing covers a single tube, 500mm (≈19.7") long, made from brass alloy with a smooth, bright finish. The outer diameter (OD) ranges from 1mm (≈0.039") up to 12mm (≈0.472"), and the wall thickness is a uniform 0.3mm across all sizes — giving an inner diameter (ID) that is consistently 0.6mm less than the OD (e.g., 6mm OD = 5.4mm ID). All sizes are available in the 500mm fixed length; cut to your required dimension on-site.

Typical use cases include telescoping tube assemblies for RC aircraft and car chassis, small-bore tubing for model steam boilers and plumbing mockups, jewelry findings and tube rivets for metalsmithing, and structural spacers or standoffs in precision instrument housings. The consistent wall dimension across the full size range makes these tubes well-suited for nested or telescoping brass tube applications where adjacent sizes need to slide together.

ℹ️ Compatibility Note: These are plain, unthreaded hollow brass tubes. OD and ID dimensions are as listed per variant. Adjacent sizes in this range are generally compatible for telescoping fits — verify the ID/OD pairing in the variant selector before ordering.

✅ Key Features of These Brass Round Tubes

📏18 OD Sizes in One Listing — Choose from 1mm to 12mm outer diameter in a single product, covering the full range needed for small-scale model making and precision DIY fabrication without hunting across multiple listings.
🔩Consistent 0.3mm Wall Thickness — Uniform wall across all sizes means predictable ID calculations and reliable telescoping brass tube fits when nesting adjacent sizes together.
✂️500mm Working Length — At 500mm (≈19.7") per tube, there's ample material to cut multiple shorter pieces for jewelry tube rivets, spacers, or model frame segments from a single stick.
🔥Solderable & Brazeable Brass Alloy — Brass bonds readily with standard rosin-core solder and silver brazing alloys, making these tubes a go-to choice for model boiler tubing, custom fittings, and metalsmithing joins.
🌿Natural Corrosion Resistance — Brass resists oxidation in typical indoor and moderately humid environments, making it suitable for decorative hardware, instrument components, and hobby builds that need long-term appearance stability.
🪛Machinable & Easy to Work — Brass cuts cleanly with a tube cutter, jeweler's saw, or hobby knife, and accepts threading, drilling, and filing without the work-hardening issues common with stainless steel tubing of similar dimensions.

📐 Technical Specifications — Brass Hollow Round Tube

Material	Brass alloy (copper-zinc)
Finish	Bright / natural brass
Outer Diameter (OD) Range	1mm (≈0.039") to 12mm (≈0.472") — see variant options
Wall Thickness	0.3mm (uniform across all sizes)
Inner Diameter (ID)	OD minus 0.6mm (e.g., 6mm OD → 5.4mm ID) — see variant options
Length	500mm (≈19.7")
Number of Size Options	18 (1mm, 1.2mm, 1.5mm, 1.6mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 12mm OD)
Thread / Fitting Type	Plain, unthreaded — contact us to confirm fitting compatibility
Quantity per Order	See variant options
Country of Origin	China

⚠️ Sizing Tip: Always verify the OD and ID values in the variant selector match your project requirements before adding to cart. If you need a custom length or wall thickness, contact us to confirm availability.

❓ Frequently Asked Questions

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

Measure the opening or bore you need to fit into, then select an OD slightly smaller. For length, 500mm (≈19.7") is typically enough for most model-making and hobby projects — cut to size with a fine-tooth saw or tube cutter. If you need a specific length, contact us to confirm availability.

Can these brass tubes be nested or telescoped inside each other?

Yes. Because all variants share a consistent 0.3mm wall thickness, adjacent sizes in this range are generally designed to telescope — for example, the 1.2mm OD tube typically slides inside the 1.5mm OD tube. Verify the ID/OD pairing in the variant options before ordering.

What is the load-bearing or structural strength of these tubes?

These are thin-wall precision tubes intended for light-duty applications such as model making, jewelry, and instrumentation. They are not rated for structural load-bearing use. For high-stress applications, a thicker-wall tube is generally recommended.

Are these tubes suitable for outdoor or humid environments?

Brass has naturally good corrosion resistance and performs well in moderately humid or indoor environments. For prolonged outdoor exposure or contact with saltwater, applying a clear lacquer or sealant is generally recommended to maintain appearance.

What thread or fitting standards are compatible with these tubes?

These are plain, unthreaded hollow tubes. They are not pre-tapped or threaded. Compatibility with fittings depends on the OD you select and the fitting's bore. Contact us to confirm fit for specific coupling or connector applications.

Can I solder or braze these brass tubes?

Yes. Brass is highly solderable and brazeable. Standard rosin-core or acid-core solder with appropriate flux works well for joining these tubes. This makes them a popular choice for model boilers, jewelry, and custom fabrication.

How do I cut these tubes cleanly without deforming them?

For the smallest sizes (1mm–3mm OD), a sharp hobby knife or micro tube cutter typically gives the cleanest cut. For larger sizes (4mm–12mm OD), a fine-tooth jeweler's saw or a dedicated tube cutter is generally recommended. Deburr the cut end with a fine file or reamer.

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

Brass Round Tube — OD 1mm to 12mm, 0.3mm Wall, 500mm Length

Name: Brass Round Tube — OD 1mm to 12mm, 0.3mm Wall, 500mm Length
Brand: jfccivils.com
SKU: 46107414616
Price: 35.62 USD
Availability: InStock
Rating: 4.2349 (82 reviews)