Brass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm Length
Brass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm Length
Brass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm Length
Brass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm Length
Brass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm Length
Brass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm Length
Brass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm Length
Brass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm Length
Brass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm Length
Brass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm Length
Brass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm Length
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Brass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm LengthBrass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm LengthBrass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm LengthBrass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm LengthBrass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm LengthBrass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm LengthBrass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm LengthBrass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm LengthBrass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm LengthBrass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm LengthBrass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm Length

Brass Round Tube Pipe – 0.75mm Wall Thickness | OD 2.5–12mm | 300mm Length

HomeDIYer
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By HomeDIYer®

Price:
$8.49 USD
Stock:
In stock (500 units), ready to be shipped

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Description

Brass Round Tube Pipe — Precision Hollow Tubing for Modeling, Crafts & DIY Repairs

Whether you're building a scale model, fabricating a custom bracket, routing a small fluid line, or repairing a worn shaft sleeve, finding a brass round tube pipe in exactly the right diameter is half the battle. Undersized stock leaves slop; oversized stock won't fit. These tubes are sized to metric precision so you get a predictable, repeatable fit every time — no guesswork, no grinding down a close-enough substitute.

Each piece is a seamless brass hollow round tube with a consistent 0.75mm wall thickness and a fixed length of 300mm (≈11.8"). Outer diameters range from 2.5mm (≈3/32") to 12mm (≈15/32"), with corresponding inner diameters from 1mm to 10.5mm — select your OD × ID combination from the variant options above. The brass alloy machines, cuts, solders, and bends cleanly, making it a go-to stock material for hobbyists and tradespeople alike.

Typical use cases include telescope and camera rig spacers, RC model frame tubing, jewelry findings and bead cores, small-bore fluid or air lines in workshop equipment, and decorative inlay or accent work in woodworking projects — all applications where a small diameter brass tube with a thin, uniform wall is the right call.

ℹ️ Sizing note: All dimensions are metric. OD and ID are listed in the variant selector as "Sizes (OD × ID)". Wall thickness is fixed at 0.75mm across all sizes. Verify your required bore (ID) before ordering — ID = OD − 1.5mm.

✅ Key Features of These Brass Round Tube Pipes

  • 🔩Consistent 0.75mm Wall — Uniform wall thickness across all 11 size variants ensures predictable ID-to-OD relationships and even stress distribution when bending or pressing.
  • 📏Wide Size Range in One Listing — OD from 2.5mm to 12mm lets you source multiple diameters for telescoping tube assemblies or multi-size projects without hunting across separate listings.
  • ⚙️Free-Machining Brass Alloy — Cuts cleanly with a tube cutter or fine-tooth saw, drills without grabbing, and taps easily — ideal for small brass tube for model making and precision hobby work.
  • 🔥Solderable & Brazeable — Bonds readily with silver solder, lead-free plumbing solder, or brass brazing rod, making it straightforward to join sections or attach fittings in fluid-line or structural applications.
  • 🌿Natural Corrosion Resistance — Brass resists oxidation in typical indoor and mildly humid environments, making these tubes suitable for decorative hardware, instrument components, and light outdoor use.
  • ✂️300mm Stock Length — At 300mm (≈11.8"), each tube provides enough material to cut multiple shorter pieces for most hobby and repair tasks, reducing waste compared to buying pre-cut short sections.

📐 Technical Specifications — Brass Hollow Round Tube

Material Brass (copper-zinc alloy)
Tube Form Round, hollow (seamless)
Wall Thickness 0.75mm (fixed across all variants)
Outer Diameter (OD) Range 2.5mm (≈3/32") — 12mm (≈15/32")
Inner Diameter (ID) Range 1mm — 10.5mm (ID = OD − 1.5mm)
Length 300mm (≈11.8")
Available OD × ID Sizes 2.5×1 / 3×1.5 / 3.5×2 / 4×2.5 / 4.5×3 / 5×3.5 / 6×4.5 / 8×6.5 / 10×8.5 / 11×9.5 / 12×10.5 (all in mm)
Surface Finish See variant options
Machinability Excellent — free-machining brass
Solderability Compatible with silver solder, lead-free solder, brass brazing rod
Corrosion Resistance Good in indoor / mildly humid environments
Country of Manufacture China
Quantity per Order See variant options / contact us to confirm
⚠️ Confirm your dimensions before ordering. Tube OD and ID are listed in the variant selector. If your application requires a specific tolerance (e.g., H7/h6 fit), contact us to confirm stock tolerances before purchasing.

❓ Frequently Asked Questions

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

Measure the hole or shaft your tube needs to fit around or inside. The OD (outer diameter) should match or slightly exceed the inner dimension of the receiving part. For length, 300mm (≈11.8") is typically sufficient for most hobby and repair applications — cut to size with a fine-tooth saw or tube cutter. If you need multiple short pieces, one 300mm tube generally yields 3–6 sections depending on your cut length.

What load or pressure can these brass tubes handle?

Brass tubing with a 0.75mm wall is generally suited for light-duty structural, decorative, and low-pressure fluid applications. For high-pressure hydraulic or pneumatic systems, a thicker wall tube is recommended. Contact us to confirm suitability for your specific load or pressure requirements.

Can these tubes be used outdoors or in humid environments?

Brass has naturally good corrosion resistance and performs well in mildly humid or indoor-outdoor environments. For prolonged saltwater or highly corrosive exposure, a protective lacquer or sealant coating is generally recommended to extend service life.

Are these tubes compatible with standard fittings and connectors?

These are metric-dimensioned round tubes. They are typically compatible with metric compression fittings, push-fit connectors, and hobby/model hardware designed for the corresponding OD. For imperial fittings, verify the OD in inches before ordering — for example, the 6mm OD tube measures approximately 0.236" (just under 1/4").

How do I cut or machine these brass tubes?

Brass is a free-machining alloy and cuts cleanly with a pipe/tube cutter, fine-tooth hacksaw, or lathe. Deburr cut ends with a round file or deburring tool after cutting. Drilling and tapping are also straightforward with standard HSS bits — no special tooling required for most hobby applications.

What is the difference between OD and ID, and why does it matter?

OD (outer diameter) is the total width of the tube including the wall; ID (inner diameter) is the clear bore inside. With a fixed 0.75mm wall, ID = OD − 1.5mm. Choose based on whether you need the tube to slide over a shaft (match OD to the shaft's OD) or pass a wire, rod, or fluid through it (match ID to the required bore).

Can I solder or braze these brass tubes?

Yes. Brass solders and brazes readily with standard silver solder, lead-free plumbing solder, or brass brazing rod. Clean the joint area and apply flux before heating for best adhesion. This makes these tubes well-suited for joining sections end-to-end or attaching fittings in small fluid-line or structural assemblies.

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

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