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ASTM B111 UNS C44300 Admiralty Brass Tube Seamless Heat Exchanger Tube
ASTM B111 C44300 admiralty brass tubes are a reliable choice for applications requiring a combination of good mechanical properties, corrosion resistance, and aesthetic qualities. They're particularly valued in environments where durability and visual appeal are important. C44300, or Architectural Bronze, typically contains copper (Cu) with small amounts of aluminum (Al) and iron (Fe), contributing to its unique properties.
They are mainly used in marine industry, heat xxchangers, plumbing systems, industrial manufacturing.
Advantages of C44300 Brass Tube
1. Corrosion Resistance:
C44300 has superior corrosion resistance, especially in atmospheric conditions and when exposed to seawater. This makes it ideal for marine applications.
2. Mechanical Properties:
It combines good strength with ductility, allowing for easier fabrication and shaping. This makes it versatile for various applications.
3. Aesthetic Appeal:
C44300 develops a natural patina over time, which is visually appealing for architectural elements. Its color and finish can enhance design aesthetics.
4. Weldability and Fabrication:
This alloy can be easily welded and formed, providing flexibility in manufacturing and design processes.
5. Thermal and Electrical Conductivity:
While not as high as pure copper, C44300 maintains good thermal and electrical conductivity, making it suitable for electrical applications.
6. Low Thermal Expansion:
It exhibits a lower thermal expansion rate than some other copper alloys, which can be critical in applications subjected to temperature fluctuations
Brass Seamless Tubes Equivalent Material
Grade | USA | U.K | Germany | Japan |
China BG | ASTM B111 | BS 2871 | DIN 1785 | JIS H3300 |
HAL77-2 | C68700 | CZ110 | CuZn20Al2As | C6870 |
HSn70-1 | C44300 | CZ111 | CuZn28Sn1As | C4430 |
H68A | - | CZ126 | - | - |
H65A / H63 | C28000 / C27200 | CZ108 | CuZn26/CuZn37 | C2800/C2700 |
Material Designation | Corresponding Material Symbol | ||||
GB/T8890 | ASTM B111 | BS2871 | JIS H3300 | DIN 1785 | |
Copper-Nickel | BFe10-1-1 | C70600 Pipe | CN102 | C7060 | CuNi10Fe1Mn |
BFe30-1-1 | C71500 Pipe | CN107 | C7150 | CuNi30Mn1Fe | |
(BFe30-2-2) | C71640 | CN108 | C7164 | CuNi30Fe2Mn2 | |
(BFe5-1.5-0.5) | C70400 | – | – | – | |
B7 | – | – | – | – | |
Aluminium Brass | HAL77-2 | C68700 Tube | CZ110 | C6870 | CuZn20Al2 |
Admiralty Brass | HSn70-1 | C44300 Tube | CZ111 | C4430 | CuZn28Sn1 |
Boric Brass | Hsn70-18 | – | – | – | – |
HSn70-1 AB | – | – | – | – | |
Arsenical Brass | H68A | – | CZ126 | – | – |
Brass Tubes | H65/H63 | C28000/C27200 | CZ108 | C2800/C2700 | CuZn36/CuZn37 |
ASTM B111 / ASME SB111 C44300 brass tube Mechanical Properties
Properties | Measurement |
Yield strength | 105 MPa |
Melting point | 899 ~ 938 °C |
Tensile strength | 310 MPa |
Thermal conductivity | 109 W/m-K @ 20.0 °C |
Density | 8.53 g/cc |
Heat capacity | 0.09 cal/g-°C @ 20ºC |
CTE linear strength | 20.2 10-6/°C @ 20.0 – 300 °C |
Here are a few reasons why C44300 copper alloy tube may be chosen:
Excellent corrosion resistance: C44300 copper alloy tube offers exceptional corrosion resistance, making it suitable for applications where exposure to moisture, harsh chemicals, or corrosive environments is expected. It can withstand both saltwater and freshwater environments, making it ideal for marine applications.
High thermal conductivity: Copper inherently possesses excellent thermal conductivity, and C44300 copper alloy tube is no exception. It efficiently transfers heat, making it suitable for applications that require efficient heat transfer, such as heat exchangers and cooling systems.
Good formability: C44300 copper alloy tube is easily formed and fabricated, allowing it to be shaped and customized into various sizes and shapes to suit specific application requirements.
Reliable mechanical properties: This copper alloy offers good strength and durability, ensuring that it can withstand high pressure and mechanical stresses. It can be used in various industries, including HVAC, plumbing, and automotive, where reliable and robust tubing is needed.
Cost-effective: Compared to other materials with similar properties, C44300 copper alloy tube is relatively cost-effective. It offers a good balance between performance and price, making it a popular choice in many applications.
Applications
Plumbing and HVAC Systems
Electrical Industry
Medical Equipment
Heat Exchangers
Automotive Industry
Solar Thermal Systems
Industrial Equipment
Furniture and Decorative Items
Food and Beverage Industry
Marine Industry