Brass Tube C28000 is a copper-zinc alloy that has been used in industrial and commercial applications for well over a century. It handles pressure effectively, is easy to machine, and is more economical than the higher‑copper alloys. At A.B.C. Tube Company, stocks C28000 brass tubes for industrial and decorative applications in both standard and custom sizes. If you need tubes for heat exchangers, plumbing systems or for architectural work, then this grade is one to look at very carefully.
What Is Brass Tube C28000?
C28000 is the UNS designation for what is commonly called Muntz Metal. The composition is roughly 60% copper and 40% zinc. That ratio puts it on the higher zinc side compared to many other brass grades, and that directly affects how the material behaves during forming and fabrication.
C28000 brass tube holds a good balance. The mechanical properties are consistent, it is affordable relative to higher-copper grades, and it works well in hot-forming operations. C28000 brass tubes are stocked by industrial suppliers because the demand across sectors is fairly steady.
Chemical Composition of C28000 Brass
The standard composition for C28000 is approximately 60% copper and 40% zinc, with trace elements permitted under ASTM specifications.
That 60/40 split is deliberate. The higher zinc content brings down material cost while still retaining enough copper to maintain workability and corrosion resistance. The zinc also contributes to strength. In practice, the alloy machines well, responds to hot-working processes without cracking, and holds its shape after forming. Trace impurities are controlled within ASTM limits, keeping mechanical performance consistent batch to batch.
Mechanical Properties and Key Characteristics
C28000 has good tensile strength for the price range. It is not brittle, so it expands and bends without cracking under normal conditions. The ductility is decent, and the formability is good enough for most tube fabrication work.
Hot working is where this alloy performs well. It can be extruded, drawn, and formed at elevated temperatures without major issues. Soldering is straightforward. The surface has a natural golden appearance that works for decorative applications without any additional finishing in many cases.
Corrosion resistance is acceptable for atmospheric exposure and freshwater environments. It is not suited for seawater or highly acidic conditions without additional protection.
Major Advantages of C28000 Brass Tubes
The cost advantage is real. Compared to alloys with 70% or more copper, C28000 comes in at a lower price point without a significant drop in usability for most applications.
It bends without special tooling in most setups. Expansion of tube ends, swaging and standard fabrication steps are all manageable. It has good thermal and electrical conductivity which are important in applications in heat transfer In most industrial atmospheres resistance to atmospheric corrosion is fairly good.
It is also suited for both structural and decorative work without needing different surface treatments. That flexibility is useful when sourcing a single grade for multiple product lines.
Common Applications of Brass Tube C28000
● Heat exchangers and condensers use C28000 tubing for its thermal conductivity and ease of fabrication.
● Plumbing and water distribution systems use it for freshwater lines where corrosion resistance and pressure handling matter.
● Architectural trim and decorative fixtures use the golden surface finish for visual appeal without needing additional coating.
● Automotive radiator components use C28000 for its heat transfer properties and formability.
● Musical instruments, particularly brass instruments, use this alloy for its acoustic and workability characteristics.
● Marine hardware in non-seawater-critical applications, such as fittings and connectors on freshwater-exposed components.
● Industrial fittings and connectors are made from this grade for general-purpose use in manufacturing environments.
Industries That Use C28000 Brass Tubes
HVAC and Refrigeration: Tube bundles in cooling systems and refrigeration units are a common application. C28000 handles the thermal cycling and the fabrication requirements for finned tube assemblies and condenser coils.
Construction and Architecture: Handrails, grille work, decorative trims, and structural tube elements are fabricated from C28000 in building projects. The material is easy to cut and join on-site.
Electrical and Electronics: The conductivity of the alloy makes it suitable for bus bars, connector housings, and electrical tube components where heat dissipation and current handling are factors.
Manufacturing and Fabrication: General purpose tube stock for jigs, fixtures, structural supports and fluid carrying systems in factories. Its machinability is convenient for production shops.
Interior Design and Decorative Industries: Furniture hardware, lighting fixtures, partition frames, and display structures all use C28000 tubes. The appearance is consistent, and the material takes polishing well.
Manufacturing Standards and Specifications
C28000 brass tubes are produced and supplied against the following specifications:
● ASTM B135 covers seamless brass tubes
● ASTM B36 covers brass plate, sheet, strip, and rolled bar
● UNS C28000 is the unified numbering designation
Tubes are available in seamless and welded forms depending on the application and pressure requirements. At A.B.C. Tube Company, offers C28000 in standard sizes and custom cut lengths, special wall thickness options, and non-standard outer diameter sizes as required by the customer. Our manufacturing setup can handle your small or large quantity orders.
🛡️ Why Choose ABC Tube Company?
We have been manufacturing brass and copper tubes since 1975. We have a good stock of C28000 brass tube so lead times are short for the standard sizes. Quality control is done in-house, including dimensional tolerances, surface condition and verification of mechanical properties.
Pricing is competitive. We work directly with buyers, so there is no middleman margin added. Custom lengths and dimensions are available without minimum order complications in most cases. For export orders to the U.S. and Canada, documentation and packing are handled to meet importing requirements.
Technical support is available for specification selection and sizing. If you are unsure whether C28000 fits your application or need a comparison with another grade, our team can help with that.
Conclusion
C28000 brass tubes are a practical, cost-effective material that covers a lot of ground. The alloy performs consistently in heat transfer, structural, plumbing, and decorative applications without needing the higher cost of copper-heavy grades.
A.B.C. Tube Company stocks and manufactures C28000 brass tubes to ASTM standards. Custom sizing is available as well as either seamless or welded construction. Get in touch with our team with your requirements and we can advise on the right specifications for your application.