ASTM B163 Alloy 825 N08825 Nickel Alloy Extruded Finned Tubes Suppliers With AL1060 Fins
| Attribute | Value |
|---|---|
| Product | Fin Tubes or Finned Tube |
| Type | Extruded Finned Tubes |
| Material | Base Tubes B163 N08825 and B209 AL1060 Fins |
| Length | 5560mm (Customizable) |
| Tube Details | Base Tube 25.4mm O.D. and W.T. 2.11mm |
| Fins Details | 433Fins/M and 57mm Fin O.D., W.T. 0.2-0.4mm |
| Use | Heat Exchanger / Boiler / Furnaces / Condensers / Evaporators / Air cooler |
| Packing | Ply-wooden Case With Iron Frame |
| Ni | Cu | Mo | Fe | Mn | C | Si | S | Cr | Al | Ti |
|---|---|---|---|---|---|---|---|---|---|---|
| 38-46 | 1.5-3.0 | 2.5-3.52 | 22.0 min | 1.0 | 0.05 max | 0.5 | 0.03 | 19.5-23.5 | 0.2 max | 0.6-1.2 |
| Grade | Tensile Strength min | Yield Strength min | Elongation in 2" or 50mm min |
|---|---|---|---|
| N08825 | 85ksi (586 MPa) | 35ksi (241 MPa) | 30% |
ASTM B163 specification covers seamless tubes of nickel and nickel alloys for condenser and heat-exchanger service. These N08825 tubes, made from Alloy 825 (UNS N08825), offer excellent corrosion resistance in harsh environments, making them ideal for extruded fin tubes in thermal applications requiring both corrosion resistance and efficient heat transfer.
Alloy 825 resists sulfuric and phosphoric acids, seawater, and chloride-induced stress corrosion cracking. It maintains strength and oxidation resistance at elevated temperatures (up to ~540°C / 1000°F), making it suitable for waste heat recovery, boilers, and refinery heaters.
- Base Tube Materials: Carbon steel, stainless steel, copper, titanium, and alloys
- Fin Materials: Aluminum or the same material as the base tube
- Mechanically bonded fins ensure excellent thermal conductivity and durability
- Increased heat transfer surface area improves efficiency
- Extrusion process enhances structural integrity for high-pressure environments
Heat exchangers, condensers & coolers, waste heat recovery systems
Seawater coolers, sour gas processing, refinery heat exchangers
Flue gas desulfurization (FGD) systems, waste-to-energy plants
Desalination plant heat exchangers, shipboard cooling systems
Digester heat exchangers
ASTM B163 N08825 extruded fin tubes combine corrosion resistance, thermal efficiency, and durability, making them essential in industries where standard stainless steels fail. Their use extends equipment lifespan while ensuring optimal heat transfer in extreme conditions.
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