| Specification: | ASTM A163， ASME SA163 | Material Grade: | UNS N04400， Monel 400 |
|---|---|---|---|
| Tube Material: | Carbon Steel，Stainless Steel，Copper Etc，Alloy Steel | Type: | G Type Fin Tube |
| Fin Height: | 0-17mm | Fin Pitch: | 2.0mm-5.0mm |
| Tube Length: | 18 Meters Max | Applications: | Heater Parts，Refrigeration Parts，heat Exchanger，Cooler，Fluid Cooling |
| High Light: | Nickel Copper Alloy Fin Tube， Monel400 Finned Pipe， ASME SB163 Heat Exchanger Fin Tube | ||
ASME SB163 UNS N04400 Nickel Alloy Embedded G Type Finned Tube With Aluminum Fins
UNS N04400 is a Nickel-Copper Alloy (about 67% Ni – 23% Cu) that is resistant to seawater and steam at high temperatures. Monel 400 is a solid solution alloy which can only be hardened by cold processing. This nickel alloy steel exhibits features like good corrosion resistance， good weldability and high strength. It has a low corrosion rate in the brackish or seawater and has excellent resistance to stress-corrosion cracking in the most freshwater. It also has resistance to various corrosive conditions which leads to its widely use in marine applications and other non-oxidizing chloride solutions. This nickel alloy has resistant to hydrochloric and hydrofluoric acids when they are de-aerated.
“G” Fin Tubes have a helical groove formed in the tube surface with an uplift of metal each side which， when peened back into the fin， grips it securely. This ensures high heat transfer as well as producing a secure mechanical bond.
Chemical Composition:
| Element | Min | Max |
| C | – | 0.3 |
| Si | – | 0.5 |
| Mn | – | 2 |
| S | – | 0.24 |
| Cu | Bal. | |
| Fe | – | 2.5 |
| Ni | 63 | 70 |
Mechanical Properties:
| Density | 8.8 g/cm³ |
| Specific Heat (Btu/lb/°F – [32-212 °F]) | 0.105 |
| Electrical Resistivity (microhm-cm (at 68 ° F) | 307 |
| Melting Point (°F) | 2425 |
| Poissons Ratio | 0.32 |
| Thermal Conductivity | 167 |
| Mean Coeff Thermal Expansion | 7.7 |
| Modulus of Elasticity Tension | 26 |
Inspection and Testing:
Macro Test
Flattening Test
Pitting Resistance Test
Chemical Analysis
Hardness Test
Flaring Test
Intergranular Corrosion (IGC) Test
Positive Material Identification(PMI)
Applications:
Natural Gas Processing
Power generation
Air Conditioning
Waste Equipment
Compressor Cooler
Chemical and Petrochemical Industries
