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home > Seamless Brass Round Tube – Thick Wall, OD 13–35mm × 500mm > Seamless Brass Round Tube – Thick Wall, OD 13–35mm × 500mm

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Seamless Brass Round Tube – Thick Wall, OD 13–35mm × 500mmSeamless Brass Round Tube Thick Wall, Precision OD ID for DIY & Industrial Use Whether you're building a custom hydraulic manifold, fabricating a bearing sleeve, or replacing a worn bushing on a piece of equipment, finding a seamless brass round tube in exactly the right OD to ID ratio is often the hardest part of the job. Off the shelf thin wall tubing flexes under load; oversized stock wastes hours on the lathe. This listing solves that problem with

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Seamless Brass Round Tube — Thick Wall, Precision OD/ID for DIY & Industrial Use

Whether you're building a custom hydraulic manifold, fabricating a bearing sleeve, or replacing a worn bushing on a piece of equipment, finding a seamless brass round tube in exactly the right OD-to-ID ratio is often the hardest part of the job. Off-the-shelf thin-wall tubing flexes under load; oversized stock wastes hours on the lathe. This listing solves that problem with 57 precisely drawn size combinations — all in one place.

Each tube is drawn from seamless brass stock (C360-equivalent free-machining alloy) with a thick wall construction. Sizes span OD 13mm (≈ 1/2") to OD 35mm (≈ 1-3/8"), with inner diameters ranging from 5mm to 27mm depending on the OD selected. Every piece is cut to 500mm (≈ 19.7") in length. Select your exact OD × ID combination from the variant dropdown above.

Typical use cases include: precision bushing and sleeve fabrication for machinery repair, standoff and spacer stock for custom metal fabrication, fluid-line and pneumatic tubing in workshop plumbing systems, and decorative or structural tube work in furniture and architectural metalwork where a warm brass finish is desired.

🔵 Compatibility: Metric OD/ID dimensions — fits metric compression fittings, metric machined bores, and metric push-fit connectors. Not a direct match for NPT or BSP threaded fittings. Verify bore size against your fitting spec before ordering.

✅ Key Features of These Seamless Brass Round Tubes

🔩 Seamless Drawn Construction — No weld seam means uniform wall thickness around the full circumference, reducing stress concentration points in rotating or pressurized applications.
📐 57 OD × ID Combinations — From 13mm × 6mm up to 35mm × 27mm, covering a wide range of wall thicknesses so you can match your exact bore and clearance requirements without custom machining.
⚙️ Free-Machining Brass Alloy — Cuts, drills, taps, and turns cleanly with standard HSS or carbide tooling, making it ideal for bushing stock, sleeve fabrication, and precision lathe work.
🛡️ Corrosion-Resistant Surface — Brass naturally resists oxidation in fresh water and mild atmospheric environments, making these tubes suitable for indoor plumbing fittings, HVAC components, and workshop fluid lines.
📏 Fixed 500mm Length — Each piece is 500mm (≈ 19.7") long — long enough for most bushing, spacer, and short-run tubing applications, and easy to cut down with a pipe cutter or non-ferrous saw blade.
✨ Warm Brass Finish — The natural golden tone works for both functional and decorative applications — furniture legs, lamp hardware, architectural accents, and instrument components where appearance matters alongside performance.

📐 Technical Specifications — Seamless Brass Round Tube

⚠️ OD, ID, and wall thickness vary by variant. The table below shows the full size range. Select your specific size from the dropdown above to confirm the exact dimensions for your order.

Material	Seamless brass (free-machining alloy, C360-equivalent)
Outer Diameter (OD) Range	13mm (≈ 1/2") – 35mm (≈ 1-3/8")
Inner Diameter (ID) Range	5mm – 27mm (varies by OD selected)
Wall Thickness	Varies by variant — typically 3mm–8mm per side; see variant options
Length	500mm (≈ 19.7")
Number of Size Options	57 OD × ID combinations
Construction	Seamless drawn (no weld seam)
Finish	Natural brass (uncoated)
Machinability	Excellent — suitable for turning, drilling, tapping
Corrosion Resistance	Good in fresh water and mild atmospheric conditions
Alloy Certification / Mill Test Report	Contact us to confirm
Country of Origin	Contact us to confirm

❓ Frequently Asked Questions

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

Measure the shaft, rod, or fitting that must pass through the tube — that gives you the minimum inner diameter (ID) you need. Then choose an outer diameter (OD) that fits your housing or clearance requirement. As a general rule, wall thickness = (OD − ID) ÷ 2. For example, a 20mm OD × 14mm ID tube has a 3mm wall on each side (≈ 0.118" per side). All sizes on this page are listed as OD × ID × Length in millimeters.

What is the tensile strength of these brass tubes?

C360 free-machining brass typically has a tensile strength of 49,000–68,000 psi (338–469 MPa) depending on temper. Exact alloy and temper are not specified for this listing; if your application has strict load requirements, please contact us to confirm before ordering.

Can these tubes be used outdoors or in wet environments?

Brass generally offers good corrosion resistance in fresh water and mild atmospheric conditions. It is not recommended for prolonged exposure to salt water, ammonia, or strong acids without a protective coating. For marine or highly corrosive environments, consider stainless steel alternatives.

Are these metric tubes compatible with standard fittings?

These are metric-dimensioned tubes (OD and ID in millimeters). They are generally compatible with metric compression fittings, metric push-fit connectors, and metric machined parts. They are not designed to match imperial pipe thread standards (NPT/BSP) directly — check your fitting's bore size against the tube OD before ordering.

Can I cut, drill, or machine these tubes?

Yes. Brass is one of the most machinable metals available. These seamless tubes can be cut with a pipe cutter, hacksaw, or miter saw (non-ferrous blade), and can be drilled, tapped, or turned on a lathe with standard HSS or carbide tooling. Deburr cut ends before assembly.

How do I select the right wall thickness for a structural application?

For structural or load-bearing use, a thicker wall (smaller ID relative to OD) provides greater rigidity and crush resistance. As a starting point, a wall thickness of at least 10–15% of the OD is generally considered robust for light structural duty. For critical applications, consult an engineer and confirm the exact alloy specification with us.

What is the length of each tube, and can I order custom lengths?

Each tube is 500mm (≈ 19.7") long as listed. Custom lengths are not available through this listing. If you need a different length, contact us before ordering and we will advise on availability.

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

Seamless Brass Round Tube – Thick Wall, OD 13–35mm × 500mm

Name: Seamless Brass Round Tube – Thick Wall, OD 13–35mm × 500mm
Brand: lifisolutions.eu
SKU: 61921949287
Price: 52.97 USD
Availability: InStock
Rating: 4.8136 (698 reviews)