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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 Finned Tube Features:
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. | 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.
