NICKEL ALLOY FINNED TUBE ASME SB163 UNS N04400 25*2*9000MM G TYPE
FIN GRADE AL99.5 FOR HEAT EXCHANGER COOLER
ASTM B163 UNS N08825 Nickel Alloy Seamless Pipe is a
nickel-iron-chromium alloy with added molybdenum and copper.
The chemical composition of this nickel steel alloy is designed to
provide superior resistance to many corrosive environments. It is
similar to Alloy 800 but has improved water corrosion resistance.
It has excellent resistance to reducing and oxidizing acids, stress
corrosion cracking, and localized corrosion such as pitting and
crevice corrosion. Alloy 825 Incoloy 825 is particularly resistant
to sulfuric and phosphoric acid. This nickel steel alloy is used in
chemical processing, pollution control equipment, oil and gas well
piping, nuclear fuel reprocessing, acid production and pickling
equipment.
Extruded Finned Tubes
Extruded finned tubes are bimetallic tubes whose outer aluminium
surface is finned by cold plastic deformation.
1. They can work at a maximum temperature of 285 degrees Celsius
2. They have an excellent level of atmospheric corrosion resistance
3. They are purely made up of aluminium
4. Offers excellent mechanical resistance
Why Choose Extruded Finned Tube?
Most of the industries choose extruded fin tubes as they offer a
better level of resistance against corrosion. This helps them
to be highly durable thus letting you have a strong heat exchanger.
Along with this, they can withstand mechanical stress,
thus provide flawless results. It is generally used with industries
that do not require the material to reach a very high temperature.
NO8825 Chemical Composion
| Element | Ni | Cr | Mo | Cu | Ti | Iron | C | Mn | S | Si | Al |
| % | 38.0-46.0 | 19.5-23.5 | 2.5-3.5 | 1.5-3.0 | 0.6-1.2 | 22.0 min (~33%) | 0.05max | 1.0max | 0.03max | 0.5max | 0.2max |
NO8825 Mechanical and Physical Properties
| Alloy state | Tensile strength | Yield strength | Elongation | Brinell hardness | Density / Specific Gravity | Melting point |
| Rm N/mm² | R P0. 2N/mm² | A 5 % | HRB Max |
| N08825 | 517 | 172 | 30 | 200 | 8.1 kg/m³ 0.30 lb/in³ | 1370-1400℃ |
| Hot Finished |
| N08825 | 586 | 241 | 30 | 200 |
| Cold Finished |
Technical details/base tube details/Fin details
Pipe Diameter: Min. OD 20mm to Max. OD 219mm.
Tube Thickness: Min. 2mm to 16mm
Pipe material: stainless steel, alloy steel, carbon steel, Corten
steel, duplex steel, super duplex steel, Inconel, high chromium
high nickel and some materials such as Incolloy, CK 20 material.
| Fin detail | Features |
Fin Thickness: Min. 0.8 mm to max. 4 mm Fin Height: 0.25" (6.35 mm) minimum to 1.5" (38 mm) maximum Fin Density: Minimum 43 fins per meter, maximum. 287 fins per meter Materials: Carbon Steel, Stainless Steel, Alloy Steel, Weathering
Steel, Duplex Steel and Incolloy. | - Dimensional accuracy.
- High strength
- Durable
- Corrosion resistance
- Fine finish
|
If you need a quick quote, please send as follows
1. The number of pieces
2. Base pipe: (1) diameter, (2) thickness, (3) length and (4)
material specification
3. Fins: (1) material specification, (2) type (solid or serrated),
(3) height, (4) thickness, (5) pitch, (5) fin length (6) finless
section
4. Desired delivery date
Applications
- Pharmaceutical Equipment
- Chemical Equipment
- Sea Water Equipment
- Heat Exchangers
- Condensers
- Pulp and Paper Industry
- Off-Shore Oil Drilling Companies
- Power Generation
- Petrochemicals
- Gas Processing
- Specialty Chemicals
- Pharmaceuticals
