ASME SB163 N04400 Monel 400 G Type Nickel Alloy Steel Fin Tube
G Type Finned Tube Description:
The G Type Fin Tube is also known as Embedded Fin Tube. This type of fin tube widely finds acceptance where the requirement is for higher operating temperature and relatively lower corrosive atmosphere.
The fins are manufactured by embedding the fin strip into a groove formed on the base tube. The Fin is allowed to be placed in the groove and then the back filling of the groove is carried out to ensure firm adherence of the fins to the base tubes. Because of the process this type of Fin Tube is also known as ‘G’ Fin tube or Grooved Fin Tube.
The grooving, fin stack inserting and the back filling processes are carried put simultaneously as continuous operation. Because of the back filling procedure the bond between the Fin material and the Base tube is one of the best. This ensures optimum Heat Transfer.
G-type embedded fin tubes have certain requirements for the medium flowing through them.
First, the cleanliness of the medium is very critical. If the medium contains more impurities and particles, they may be deposited inside the finned tube, resulting in reduced heat transfer efficiency and even pipeline blockage.
Second, the chemical properties of the medium will affect the use of the finned tube. Highly corrosive media will accelerate the corrosion of the finned tube and shorten its service life.
Third, the temperature and pressure of the medium need to be within the design load range of the finned tube. Excessive temperature and pressure may cause the finned tube to deform and be damaged.
G-Type Finned Tube Features:
- 1. Compact design
- 2. High-performance
- 3. Easy installation
- 4. Less space required
- 5. Less cabling
- 6. Optimized surface
- 7. Finest technology used
- 8. Average corrosion protection
- 9. Less energy consumption
- 10. Increased reliability
- 11. Low maintenance
- 12. High mechanical resistance
Why choose Monel 400 fin Tube?
Monel 400 is a highly versatile and reliable corrosion-resistant alloy that boasts exceptional overall performance. This alloy is renowned for its unparalleled resistance to hydrofluoric acid and fluorine gas, as well as its superior durability in hot concentrated alkalis.
Additionally, it demonstrates outstanding corrosion-resistance in a wide range of neutral solutions, water, sea water, atmospheric environments, and organic compounds. Notably, Monel400 is generally immune to stress corrosion cracking and boasts excellent cutting performance.
Chemical Composition of Monel 400
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr |
| Monel 400 | 0.30 max | 2.00 max | 0.50 max | 0.24max | 28.0-34.0 | 2.50 max | 63.00 min | – |
Equivalent Grades for Monel 400
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | AFNOR | EN |
| Monel 400 | 2.4360 | N04400 | NW 4400 | NA 13 | NU-30M | NiCu30Fe |
Mechanical Properties
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Monel 400 | 8.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80,000 , MPa – 550 | Psi – 35,000 , MPa – 240 | 40 % |
Physical Properties
| Properties | Metric | Imperial |
| Density | 8.8 g/cm3 | 0.318 lb/in3 |
Tube Pressure Rating
| Tube O.D.
(in.) | Wall Thickness of Tube (inches) |
| .028 | .035 | .049 | .065 | .083 | .095 | .109 | .120 |
| Working Pressure (psig) |
| 1/8 | 7900 | 10100 | | | | | | |
| 1/4 | 3700 | 4800 | 7000 | 9500 | | | | |
| 5/16 | | 3700 | 5400 | 7300 | | | | |
| 3/8 | | 3100 | 4400 | 6100 | | | | |
| 1/2 | | 2300 | 3200 | 4400 | | | | |
| 3/4 | | | 2200 | 3000 | 4000 | 4600 | | |
| 1 | | | | 2200 | 2900 | 3400 | 3900 | 4300 |
Applications
1. Marine engineering.
2. Chemical and hydrocarbon processing equipment.
3. Gasoline and freshwater tanks.
4. Crude petroleum stills.
5. De-aerating heaters.
6. Boiler feed water heaters and other heat exchangers.
7. Valves, pumps, shafts, fittings, and fasteners.
8. Industrial heat exchangers.
9. Chlorinated solvents.
10. Crude oil distillation towers.
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ASME SB163 N04400 Monel 400 G Type Nickel Alloy Steel Fin Tube Images
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