ASTM B111 C44300 Heat Exchanger SMLS Tube
ASTM B111 C44300 seamless tubes are high-performance tubes made from Admiralty Brass, a copper-zinc alloy with small additions of tin and arsenic. This alloy is specifically designed to provide excellent corrosion resistance in high-moisture environments, particularly in applications involving seawater and other mildly aggressive conditions. C44300 tubes are known for their durability, anti-fouling properties, and outstanding heat transfer efficiency.
Key Features of C44300 Seamless Tubes:
1. Corrosion Resistance:
The addition of tin and arsenic enhances resistance to dezincification and stress corrosion cracking, making these tubes suitable for seawater and brackish water applications.
2. Seamless Construction:
The seamless design eliminates weak points, ensuring uniform strength and long-lasting performance under high-pressure and high-temperature conditions.
3. Thermal Conductivity:
C44300 has excellent thermal conductivity, making it ideal for heat exchanger and condenser applications where efficient heat transfer is crucial.
4. Durability:
The alloy is resistant to biofouling, pitting, and erosion, ensuring a longer service life in aggressive environments.
5. Mechanical Strength:
C44300 provides good mechanical strength and ductility, allowing it to perform reliably in demanding conditions.
Chemical Composition:
| Grade | Cu | Sn | As | Zn |
| ASME SB111 C44300 | 70–73% | 0.8–1.2% | 0.02–0.06% | 1.0% max |
Mechanical Properties:
| Grade | Yield Strength | Tensile Strength | Elongation |
| ASME SB111 C44300 | ≥ 105 MPa (15 ksi) | ≥ 310 MPa (45 ksi) | ≥ 30% |
Common Applications:
· Heat Exchangers and Condensers: Widely used in power plants, chemical industries, and HVAC systems.
· Marine Applications: Perfect for desalination systems, ship cooling systems, and other seawater-based equipment.
· Industrial Equipment: Used in evaporators, distillers, and other systems requiring efficient heat transfer in corrosive environments.
· Piping Systems: Suitable for brackish and seawater piping systems due to its resistance to corrosion.
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