UNS C44300 Admiralty Brass Tube PDF
What is ASTM B111 C44300 copper tubing?
ASTM B111 is the standard specification for copper and copper-alloy seamless condenser tubes and ferrule stock, particularly for applications requiring corrosion resistance, such as in marine and heat exchanger systems.
ASTM B111 C44300 tin brass (UNS designation C44300) is a copper-zinc alloy with excellent corrosion resistance, belonging to the Admiralty Brass series under the American ASTM standard. Due to its stable performance in seawater, freshwater, and steam environments, it is widely used in heat exchangers, condensers, and marine piping. Primarily produced in tubular form, this material combines good mechanical properties with excellent processing adaptability, making it a key material in marine engineering and chemical engineering.
Chemical Composition
| Element | Content (%) |
|---|---|
| Cu | 71 |
| Sn | 1 |
| Zn | 28 |
Physical Properties
The physical properties of the UNS C44300 brass alloys are outlined in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.53 g/cm3 | 0.308 lb/in³ |
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 331-379 MPa | 48000-55000 psi |
| Yield strength (depending on temper) | 124-152 MPa | 18000-22000 psi |
| Elongation at break (in 0 mm) | 65% | 65% |
| Creep strength | 0.370 MPa | 53.7 psi |
| Charpy impact | 82.4 J | 60.8 ft-lb |
| Fatigue strength | 115-125 MPa | 16700-18100 psi |
| Elastic modulus | 117 GPa | 17000 ksi |
| Poisson's ratio | 0.34 | 0.34 |
| Machinability | 30 | 30 |
| Shear modulus | 40.0 GPa | 5800 ksi |
Thermal Properties
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (@20-300°C/68-572°F) | 20.2 µm/m°C | 11.2 µin/in°F |
| Thermal conductivity (@20°C/ 68°F) | 110 W/mK | 763 BTU in/hr.ft².°F |
Product Applications
Marine Engineering: Ship condenser tubes, desalination pipelines, subsea valves.
Energy & Power: Thermal power plant condensers, nuclear cooling systems, refinery heat exchangers.
HVAC: AC refrigerant tubes, chlorinated hot water pipes.
Mechanical Parts: Deep-drawn pins/springs, corrosion-resistant bearing bushings.
Our spot inventory
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C44300 condenser tube |
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Founded in 2008, we are a leading professional exporter specializing in a comprehensive range of high-quality copper products for global markets. Our core product portfolio encompasses various forms and specifications to meet diverse industrial needs.
Copper Tubes & Pipes:
We supply both Copper Seamless Tubes (ASTM B68, B75) and Copper Welded Tubes, including Pure Copper Tubes (C11000, C12200), Brass Tubes (C23000, C26000, C28000), and specialized Admiralty Brass Tubes (C44300) for superior corrosion resistance in heat exchanger applications. Our offerings comply with key ASTM standards such as ASTM B88 for seamless water tube and ASTM B111 for condenser tubes.
Copper Sheets & Plates:
Our range covers from thin-gauge Thin Copper Sheet (ASTM B152) to heavy-duty Thick Copper Plate, available in alloys like Pure Copper (C11000), Brass Sheet (C26000), Phosphor Bronze Sheet (C51000, C52100), and corrosion-resistant Admiralty Brass Sheet/Plate (C44300).
Copper Rods & Bars:
We provide Copper Round Rod, Copper Square Bar, Copper Hexagon Bar, and Copper Flat Bar in various tempers. Products include Free-Cutting Brass Rod (C36000 per ASTM B16), Oxygen-Free Copper Rod (C10100/C10200, ASTM B187), Beryllium Copper Bar (C17200, ASTM B196), and Admiralty Brass Rod (C44300).
Copper Wires & Strips:
Our Copper Wire products include Bare Copper Wire (ASTM B1/B2/B3), Enamelled Copper Wire, and Brass Wire. We also supply precision Copper Strip (C11000, C26800), Brass Strip, and Admiralty Brass Strip (C44300) for electrical, marine, and fabrication applications.
