Brass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness Options
Brass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness Options
Brass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness Options
Brass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness Options
Brass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness Options
Brass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness Options
Brass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness Options
Brass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness Options
Brass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness Options
Brass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness Options
Brass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness Options
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Brass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness OptionsBrass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness OptionsBrass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness OptionsBrass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness OptionsBrass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness OptionsBrass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness OptionsBrass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness OptionsBrass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness OptionsBrass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness OptionsBrass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness OptionsBrass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness Options

Brass Round Tube Pipe OD 21–30mm × 500mm | Multiple Wall Thickness Options

HomeDIYer
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By HomeDIYer®

Price:
$44.87 USD
Stock:
In stock (500 units), ready to be shipped

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Description

Brass Round Tube Pipe — Precision Metric Sizing for DIY, Plumbing & Fabrication

Whether you're replacing a worn fitting, building a custom frame, or crafting a scale model, finding a brass round tube pipe in exactly the right diameter is often the hardest part of the job. Mismatched OD or ID dimensions mean wasted time, leaks, or structural failure — frustrations that hobbyists, plumbers, and fabricators know all too well.

Each piece is a solid-drawn brass round tube available in outer diameters from 21mm (≈0.827") to 30mm (≈1.181"), with a fixed length of 500mm (≈19.7"). Wall thickness options span 0.5mm, 1mm, 1.5mm, 2mm, 3mm, and 5mm, giving you precise control over inner diameter and wall strength. The material is brass alloy — a copper-zinc alloy known for its machinability, corrosion resistance, and attractive golden finish.

These tubes are well suited for DIY plumbing repairs and custom pipe runs, architectural model making and scale fabrication, and decorative railing inserts, lamp components, and furniture hardware — anywhere a dimensionally accurate, workable metal tube is needed.

ℹ️ Compatibility Note: OD dimensions follow standard metric sizing (21–30mm). Verify your fitting's bore or sleeve ID before ordering. Inner diameter = OD minus twice the wall thickness (e.g., OD 25mm − 2 × 1mm wall = 23mm ID).

✅ Key Features of These Brass Round Tube Pipes

  • 📐Wide OD Range (21–30mm) — Covers the most commonly needed metric tube sizes for plumbing, fabrication, and craft projects in a single product listing.
  • 🔩Six Wall Thickness Options — Choose 0.5mm through 5mm to dial in the exact inner diameter and structural weight your application demands, from lightweight decorative sleeves to rigid structural inserts.
  • ✂️Easily Machinable Brass Alloy — Cuts cleanly with a pipe cutter or hacksaw, solders with standard lead-free solder, and machines on a lathe without special tooling — ideal for custom brass tube fittings and DIY metalwork.
  • 🛡️Corrosion-Resistant Finish — Brass naturally resists oxidation in indoor and mildly humid environments, making it a dependable choice for light plumbing applications and outdoor decorative hardware.
  • 📏Consistent 500mm Length — Each tube measures 500mm (≈19.7") long, providing enough material for most single-run repairs or fabrication cuts while keeping shipping dimensions manageable.
  • 🔄Metric-Compatible Dimensions — Sized to work with standard metric compression fittings, couplings, and sleeves — no adapters needed for most metric plumbing and mechanical assemblies.

📐 Technical Specifications — Brass Round Tube Pipe

Material Brass alloy (copper-zinc; contact us to confirm exact grade)
Outer Diameter (OD) Range 21mm (≈0.827") – 30mm (≈1.181")
Wall Thickness Options 0.5mm / 1mm / 1.5mm / 2mm / 3mm / 5mm
Inner Diameter (ID) OD − (2 × wall thickness); see variant options
Length 500mm (≈19.7" / ≈19-11/16")
Tube Shape Round (circular cross-section)
Surface Finish Mill finish (natural brass); may show minor tooling marks
Machinability Excellent — suitable for cutting, drilling, tapping, soldering, and turning
Corrosion Resistance Good in indoor and mildly humid environments; sealant recommended for saltwater exposure
Quantity per Order 1 piece per variant selected
Country of Origin Contact us to confirm
⚠️ Sizing Tip: If you need a specific inner diameter, calculate: OD = desired ID + (2 × wall thickness). Example: need 22mm ID with 1.5mm wall → select OD 25mm × 1.5mm wall (25 − 3 = 22mm ID). Always measure your existing fitting before ordering.

❓ Frequently Asked Questions

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

Start with the inner diameter (ID) your application requires, then add twice the wall thickness to get the outer diameter (OD). For example, if you need a 23mm ID passage with a 1mm wall, select OD 25mm × ID 23mm. Wall thickness generally ranges from 0.5mm (≈0.020") for lightweight applications up to 5mm (≈0.197") for structural use.

What is the tensile strength of these brass tubes?

Brass (typically C26000 / cartridge brass or equivalent) generally has a tensile strength of around 300–500 MPa depending on temper. Thicker walls provide greater load-bearing capacity. For structural or pressure-bearing applications, please confirm the alloy grade and consult an engineer.

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

Brass offers good corrosion resistance in most indoor and mildly humid outdoor environments. It is generally suitable for decorative outdoor use, light plumbing fittings, and marine-adjacent applications. For prolonged saltwater or highly corrosive exposure, a protective lacquer or sealant coating is recommended.

Are these tubes compatible with standard metric fittings and connectors?

Yes. The OD dimensions follow standard metric sizing (21–30mm), making them compatible with most metric compression fittings, couplings, and sleeves. Always verify the exact OD and ID of your fitting before ordering, as tolerances can vary by manufacturer.

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

Yes. Brass is one of the most machinable metals available. These tubes can typically be cut with a pipe cutter or hacksaw, soldered with standard lead-free solder, drilled, tapped, and turned on a lathe. Deburr cut ends before assembly for a clean fit.

How do I convert the mm dimensions to inches?

Divide millimeters by 25.4 to get inches. Quick reference: 21mm ≈ 0.827", 25mm ≈ 0.984", 30mm ≈ 1.181". The 500mm length equals approximately 19.7" (≈19-11/16").

Which wall thickness should I choose for plumbing vs. decorative use?

For decorative, craft, or model-making applications, 0.5mm–1mm wall thickness is generally sufficient and keeps weight low. For light structural, plumbing, or mechanical applications, 1.5mm–2mm is a common choice. For higher-pressure or load-bearing scenarios, 3mm–5mm walls provide added rigidity and durability.

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

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