H65 Brass Round Tube — 300mm Hollow Brass Pipe, 1–80mm OD, Multiple Wall Thicknesses

Measure the bore or shaft you need to fit around or inside. For a snug fit over a 6mm rod, choose an inner diameter of approximately 6mm — for example, OD 7mm with 0.5mm wall gives ID 6mm. If you need clearance, add your desired gap to the inner diameter. To convert: 1 inch ≈ 25.4mm, so a 1/4" rod ≈ 6.35mm OD.

H65 is a standard cartridge brass alloy (approximately 65% copper, 35% zinc). It is generally rated for tensile strength in the range of 340–420 MPa, making it suitable for light structural, decorative, and fluid-handling applications. For heavy load-bearing use, please confirm specifications with your engineer.

H65 brass has good corrosion resistance in most indoor and mildly humid environments. For prolonged outdoor or marine exposure, a protective lacquer or sealant is typically recommended to prevent tarnishing. It is generally not suitable for direct contact with ammonia-based compounds, which can cause stress corrosion cracking.

Yes — the outer and inner diameters follow standard metric dimensions, making these tubes generally compatible with metric compression fittings, bushings, and couplings. Always verify the exact OD and ID of your fitting before ordering, as tolerances can vary between manufacturers.

H65 brass machines and cuts cleanly with standard metalworking tools including pipe cutters, hacksaws, and lathes. It solders and brazes well with common flux and silver solder. Small-diameter tubes can typically be bent with a tube bender; wall thickness affects the minimum bend radius — thicker walls allow tighter bends without kinking.

Each tube is 300mm (approximately 11.8 inches) long. The quantity per order is shown in the Wall Thickness & Amount variant option — smaller OD sizes are typically available in 3-piece sets, while larger ODs are sold as single pieces. Check the variant label before adding to cart.

For RC aircraft, model trains, and precision hobby work, sizes in the 1–6mm OD range with 0.2–0.5mm wall thickness are typically used. Thinner walls (0.2mm, 0.25mm) are lighter and suit micro-scale builds; thicker walls (0.5mm+) offer more rigidity for structural elements. We recommend measuring your existing hardware before selecting a size.

With over 200 variants available, most common metric combinations are covered. If you need a specific OD/ID/wall combination not shown, please contact us — we may be able to source it or suggest the closest available alternative.