UNS C44300 Admiralty Brass Tube PDF
What is admiralty brass?
Admiralty Brass is a high-performance brass alloy alloyed with tin (0.9–1.2%) and trace elements such as arsenic and iron. Its precise chemistry prevents zinc leaching in seawater and harsh chemicals, making it ideal for tubes, fittings, and components in heat exchangers, condensers, pumps, and valves. Engineers appreciate its balance of strength, conductivity, and machine-ability, while buyers value its proven lifecycle savings over competing alloys.
Admiralty Brass (C44300) has set the benchmark for copper-zinc alloys in demanding marine, industrial, and process applications.
Developed in the 19th century to meet the Royal Navy's need for a dezincification-resistant alloy, it now serves as the material of choice for engineers and procurement specialists who require reliable, long-lasting components. These marine-grade, dezincification-resistant brass tubes ensure reliability in even the harshest saltwater conditions.
Admiralty Brass (C44300) Properties and metrics
C44300 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 (@425°C, time 3.60e+6 sec/797°F, time 1000 hr, 0.0001) | 0.370 MPa | 53.7 psi |
| Charpy impact | 82.4 J | 60.8 ft-lb |
| Fatigue strength (@# of cycles 1.00e+7, @# of cycles 1.00e+7, source does not state temper) | 115-125 MPa | 16700-18100 psi |
| Elastic modulus | 117 GPa | 17000 ksi |
| Poisson's ratio | 0.34 | 0.34 |
| Machinability (UNS C36000 (free-cutting brass) = 100) | 30 | 30 |
| Shear modulus | 40.0 GPa | 5800 ksi |
C44300 Chemical Composition
The following table shows the chemical composition of UNS C44300 brass alloys.
| Element | Content (%) |
|---|---|
| Cu | 71 |
| Sn | 1 |
| Zn | 28 |
FAQ about admiralty brass
What is admiralty brass?
Admiralty brass (C44300) is a copper-zinc-tin alloy with excellent corrosion resistance in seawater. It is commonly used in condenser and heat exchanger tubes in marine and industrial environments.
What is the difference between brass and admiralty brass?
While standard brass is primarily a copper-zinc alloy, admiralty brass includes a small amount of tin (usually 1%) to improve resistance to dezincification and corrosion in seawater applications.
What is admiralty brass used for?
Admiralty brass is used in marine condensers, heat exchangers, desalination plants, and other applications where corrosion resistance in brackish or seawater is critical.
Our spot inventory
|
C44300 copper tube |
C44300 heat exchanger tube |
C44300 tube for seawater |
|
C44300 brass tube |
Seamless C44300 brass tube |
C44300 tube price |
|
Admiralty brass tube C44300 |
C44300 brass pipe supplier |
Copper alloy 443 tube |
|
ASTM B111 C44300 tube |
ASTM B171 C44300 tube |
C44300 copper alloy tube |
|
C44300 condenser tube |
Marine brass tube C44300 |
C44300 copper pipe |
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.
