| Categories | Extruded Fin Tube |
|---|---|
| Brand Name: | Yuhong |
| Model Number: | Extruded Fin tube , Aluminum Extuded Fin tube |
| Certification: | ABS, BV, DNV, CCS, LR |
| Place of Origin: | China |
| MOQ: | 1 PC |
| Price: | Negotiable |
| Payment Terms: | TT, LC |
| Supply Ability: | 10000 Tons/Month |
| Delivery Time: | 5 - 90 Days |
| Packaging Details: | Ply-Wooden Case + Iron Frame |
| Base Tube Material Grade: | NO8825, Incoloy825 |
| Base Tube Material Standard: | ASTM B163, ASME SB163 |
| Type: | Straight Tube , U Bend Tube , Coil Tube |
| Application: | Air cooler, Cooling Tower, Heat Exchanger, Condenser |
| Fin type: | Extruded Fin tube , Aluminum Extruded Fin tube , Fin tube |
| Fin Material: | Aluminum , Copper , Stainless Steel , Carbon Steel |
Nickel Alloy Extruded Fin Tube , ASTM B163 NO8825 Incoloy 825 Heat Exchanger Application
NO8825 which a nickel-iron-chromium alloy with the addition of
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 higher
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.
Yuhong's Manufacturing process:
The aluminum fin strip is tension wound and placed into a groove cut into the tube with appr. 0.4mm fluted depth.
Applications:
The common application fields are:
NO8825 Chemical Composion:
| Element | Ni | Cr | Mo | Cu | Ti | Fe | 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%) | 0.05 max | 1.0 max | 0.03 max | 0.5 max | 0.2 max |
NO8825 Physical Properties:
| Density / Specific Gravity | 8.1 kg/m³ 0.30 lb/in³ |
| Melting point | 1370-1400℃ |
NO8825 Mechanical Properties:
| Alloy state | Tensile strength | Yield strength | Elongation | Brinell hardness |
| Rm N/mm² | R P0. 2N/mm² | A 5 % | HRB Max | |
| N08825 | 517 | 172 | 30 | 200 |
| Hot Finished | ||||
| N08825 | 586 | 241 | 30 | 200 |
| Cold Finished |
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
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.
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