ASTM B163 Embedded G Type Al Fin Tube NO8825 Tubo Aletado
YUHONG Group can handle kinds of projects, such as heat exchanger / boiler
projects, marine projects, oil & gas projects etc. We offers ASME SB163 Embedded G-Type Aluminum Fin Tube NO8825 and we
sell this fin tubes in over 70 countries.
Embedded Fin Tubes also called G type Finned Tube, Embedded Finned
Tube provides a perfect connection between the fin and the tubes .
The Embedded Fin tubes main design is that through professional
equipment groove the tubes and fin insert fins into the helical
groove. Finally combined the fin and tubes as intergral.(G-Fins)
are made by winding aluminium or copper strip into a helical groove
machined on the outer surface of the tube. Embedded Fin tubes can
be used in higher temperatures and are very durable. Embedded Fin
tubes are best suited for the usages that involve high thermal
cycling or high temperatures and where the fin side will be
subjected to regular cleaning .
Specifications For Various Types Of Finned Tubes
| Type | Description | Base tube | Fin specification (mm) |
| O.D. (mm) | Fin pitch | Fin height | Fin thick |
| Embedded | G-type fin tueb | 16-63 | 2.1~5 | <17 | ~0.4 |
| Extruded | Single metal combined metal | 8-51 | 1.6~10 | <17 | 0.2-0.4 |
| Low fin tube t-type fin tube | 10-38 | 0.6~2 | <1.6 | ~0.3 |
| Bamboo tube corrugated tube | 16-51 | 8.0~30 | <2.5 | / |
| Wound | l/kl/ll type fin tube | 16-63 | 2.1~5 | <17 | ~0.4 |
| String | String fin tube | 25-38 | 2.1-3.5 | <20 | 0.2-0.5 |
| U-type | U-type tube | 16-38 | / | / | / |
| Welding | HF-welding fin tube | 16-219 | 3~25 | 5~30 | 0.8-3 |
| H/HH type fin tube | 25-63 | 8~30 | <200 | 1.5-3.5 |
| Studed fin tube | 25-219 | 8~30 | 5~35 | φ5-20 |
Tube Material : Carbon Steel, Stainless Steel, Alloy Steel, Corten steel, duplex
Steel, Super Duplex Steel, Inconel, High Chrome High Nickle &
Incolloy, CK 20 material and some other material.
Features Of G-Type Finned Tube
High-performance
Increased reliability
Easy installation
Less space required
Less cabling
Optimized surface
Finest technology used
Average corrosion protection
Low maintenance
High mechanical resistance
Compact design
Detailes Of Incoloy 825 / NO8825 Tube
ASME SB 163 N08825 Nickel Alloy TUBE 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 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.
Chemical Composition
| Grade | Ni | Cu | Mo | Fe | Mn | C (A) | Si (A) | Su | Cr | Al | Ti |
| UNS NO8825 | 38.0-46.0 | 1.5-3.0 | 2.5-3.5 | 22.0 min | 1 | 0.05 max | 0.5 | 0.03 | 19.5-23.5 | 0.02 max | 0.6-1.2 |
Mechanical Properties
| UNS NO8825 | Tensile Strength,min | Yield Strength (0.2%Offset,min) | Elongation | Rockwell Hardness |
| Annealed | ksi-85,MPa-586 | psi-35,MPa-241 | 30% | / |
Inspections and Tests
| Inspections and Tests:G-fin; L-fin; LL-fin; KL-fin; Extruded-fin
Finned Tubes |
| 1.Chemical Composition |
| 2.Mechanical Properties |
| 3.Hydrostatic Test |
| 4.Pneumatic Test |
| 5.Boroscopic Inspection |
| 6.Eddy Current Test |
| 7.Tensile Test (only for bimetallic tube) |
Our Equipments
| Main production equipments: |
| Four ERW high frequency fining lines, daily capacity around 30
tons. |
| Three bending machines, maximum OD76*80. |
| Three ERW studding lines, daily capacity around 100,000 studs. |
| One DC ERW H/HH fining lines, daily capacity around 20 tons. |
| Three PLC high speed presser. |
| 10 L/LL/KL/KLM Fining Production lines, daily capacity around 6000
meters. |
| 10 G Fining Production lines, daily capacity around 4500 meters. |
| 20 Extrusion Fining Production lines, daily capacity around 15000
meters. |
Related Industries Involved
Chemical industry
Petroleum Industry
Metallurgical industry
Power industry
Pharmaceutical industry
Food industry
Light industry
Application
Heat Exchangers For Power Plants (electric, nuclear, thermal and
geothermal power plants)
Steam Condensate Systems
Chemical And Petrochemical Industry
Food Processing Plants And Refrigeration Technology
Industrial (steel mills, incinerators, gas compression facilities)
Air Coolers / Oil Coolers / Hydrogen Coolers / Generator Coolers
Waste Heat Recovery
Driers
For a rapid quotation, pls send with following requirement:
1.Number of Pieces.
2.Base Tube: Diameter, thickness, length and material
specification.
3.Fins: material specification, type (solid or serrated), height,
thickness, spacing, finned length and unfinned sections. Weld prep
details if required.
4.Delivery period required.
