ASME SB163 N04400 Nickel Alloy Steel Seamless Tube With G Type Fin Tubes And Aluminium Fin Strip
ASME SB163 N04400, Nickel Alloy Steel Seamless Tube, G Type Fin Tube with Aluminium Fin Strip
Product Overview
ASME SA163 specifies nickel alloy seamless tubes intended for high-temperature and corrosion-resistant services, especially in heat exchangers and condensers. When combined with extruded or embedded aluminium fin strips, the tube offers enhanced heat transfer performance for air-cooled and process cooling applications.
Chemical Composition of Base Tube (UNS N04400 / Monel 400)
| Element | Content (%) |
|---|---|
| Nickel (Ni) | ≥ 63.0 |
| Copper (Cu) | 28.0 – 34.0 |
| Iron (Fe) | ≤ 2.5 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 0.5 |
| Carbon (C) | ≤ 0.3 |
| Sulfur (S) | ≤ 0.024 |
Mechanical Properties of UNS N04400 Tube
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 485 MPa (70 ksi) |
| Yield Strength | ≥ 170 MPa (25 ksi) |
| Elongation | ≥ 35% |
| Hardness | ≤ 100 HRB |
Advantages
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Excellent resistance to seawater and acidic environments (due to N04400).
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Lightweight fin material (Aluminum) for efficient heat transfer.
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Strong mechanical bond prevents fin loosening under thermal cycling.
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Suitable for high-salinity and offshore environments.
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Good thermal conductivity and durability.
Applications
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Air Cooled Heat Exchangers in petrochemical plants
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Offshore oil & gas cooling systems
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Condensers in desalination plants
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Heat exchangers in marine environments
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Sulfuric and hydrofluoric acid process equipment
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Power plants using brackish or seawater cooling
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