80/20 Red Brass Tubes are copper alloys in the form of tubes, made from UNS C24000, also known as Low Brass 80%, consisting of about 80% of copper and 20% of zinc. The alloy has good ductility and deep draw qualities as well as resistance to atmospheric corrosion. Its golden-red colour makes it ideal for use in architectural trimming, construction of musical instruments, flexible hose jackets, bellows, electrical rotor bars, and instrument fittings. As C24000 alloy is not mentioned specifically in seamless brass tube specification standards like ASTM B135, so supply is to a mill or customer specification or EN 12449. USA Piping Solution supplies 80/20 red brass tube with mill test certificates. Send your sizes to request a quote.
Specifications of 80/20 Red Brass Tubes
| Specification Parameter | Technical Detail & Standard Specification |
|---|---|
| Product Name | 80/20 Red Brass Tubes / Low Brass Seamless Tubes |
| UNS / CDA Designation | UNS C24000 / Low Brass 80% |
| European Designation (EN) | EN CW503L (CuZn20) |
| British Designation (BS) | BS CZ103 |
| Governing Standards | Supplied to Mill & Customer Specifications / EN 12449 (Note: C24000 is not explicitly listed under ASTM B135/B43) |
| Outer Diameter (OD) | 9.5 mm to 76.2 mm (0.374 in to 3.00 in) (Custom sizes available up to 150.0 mm upon request) |
| Wall Thickness | 0.50 mm to 6.0 mm (0.020 in to 0.236 in) |
| Available Lengths | 1 m, 2 m, 3 m, 4 m, 6 m, or custom fixed/cut lengths |
| Length Types | Single Random, Double Random, Standard Fixed & Precision Cut Lengths |
| Manufacturing Type | Seamless (Drawn) |
| Available Profiles / Forms | Round, Square, Rectangular, and Custom Architectural Profiles |
| Standard Tempers | Annealed: Soft Anneal (O60) | Drawn: Quarter-Hard (H01), Half-Hard (H02), Hard Drawn (H04) |
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Applications and Industrial Uses of 80/20 Red Brass Tubes
- Architecture and Construction
- Musical Instrument Manufacturing
- Flexible Hose Manufacturing
- Precision Instrument Manufacturing
- Electrical Equipment Manufacturing
- Industrial Instrumentation
- Metal Forming and Fabrication
- Furniture and Decorative Hardware Manufacturing
Frequently Asked Questions
What are 80/20 red brass tubes?
80/20 red brass tubes are seamless copper-zinc alloy tubes produced from UNS C24000 (Low Brass 80%). They consist of 80% nominal copper and 20% zinc, offering high ductility, solid strength, and a warm golden-red hue.
Is 80/20 red brass the same as UNS C24000?
Yes, 80/20 red brass is the common trade designation for UNS C24000 (CDA Low Brass 80%).
What is the European EN equivalent designation for C24000?
The European EN designation for C24000 is CW503L (CuZn20). The British standard equivalent is BS CZ103.
Which ASTM standard covers 80/20 red brass tubes?
There is no explicit ASTM standard that lists C24000 for seamless tubes (ASTM B135 does not list C24000, and ASTM B43 covers C23000 pipe only). C24000 tubes are produced to customer-defined engineering specifications or EN 12449 standards.
Is 80/20 red brass easy to machine?
C24000 has a machinability rating of 30 relative to free-cutting brass C36000 (rated 100). While machinable, it is primarily engineered for cold forming, deep drawing, and bending operations.
Material documentation and third-party inspection options available according to project requirements.
Send your specification to USA Piping Solution for a same-day quote with confirmed lead times.
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