Inconel 800 800H 800HT Fin tubes, Inconel 800 800H 800HT Fin Tube Manufacturer, Inconel 800 800H 800HT Fin Tube Supplier, Inconel 800 800H 800HT Fin Tube Exporter, Inconel 800 800H 800HT Precision Tubing, Inconel 800 800H 800HT Small Diameter Tube , Inconel 800 800H 800HT Fin Tubes
Inconel 800, 800H, and 800HT fin tubes are engineered heat exchanger components made from high-performance iron-nickel-chromium alloys. These materials are specifically designed to provide exceptional strength, oxidation resistance, and thermal stability in high-temperature environments. The addition of fins increases the external surface area of the tubes, significantly enhancing heat transfer efficiency. These finned tubes are ideal for use in compact thermal systems where reliability and performance are critical.
The three grades—Inconel 800 (UNS N08800), 800H (UNS N08810), and 800HT (UNS N08811)—share similar base compositions but differ in carbon content and alloy control, which affect their performance at elevated temperatures. Inconel 800 is suitable for moderate high-temperature service, while 800H offers improved creep strength with a higher carbon content. Inconel 800HT further enhances long-term strength and stability through tighter controls on aluminum, titanium, and carbon levels. All grades offer excellent resistance to oxidation, carburization, and nitriding atmospheres.
Inconel 800 series fin tubes can be manufactured using extruded, welded, or embedded fin techniques, with fin dimensions tailored to specific heat transfer requirements. Typically, the fins are made from the same alloy as the base tube to ensure uniform thermal expansion and corrosion resistance. Fin spacing (FPI – fins per inch), height, and thickness can be customized to optimize thermal performance in restricted spaces. These design features make them suitable for both convective and radiant heat transfer applications.
Due to their excellent thermal and mechanical properties, Inconel 800/800H/800HT fin tubes are widely used in petrochemical processing, power generation, industrial furnaces, refineries, and waste heat recovery systems. They are ideal for use in ethylene cracking furnaces, hydrocarbon reformers, superheaters, and high-temperature heat exchangers exposed to aggressive atmospheres. Their long-term structural integrity under thermal stress makes them a cost-effective solution for continuous, high-temperature operations.
Specification of Inconel 800 800H 800HT Fin tubes
| Property | Specification / Range |
|---|---|
| Alloy Grades | Inconel 800 (UNS N08800) Inconel 800H (UNS N08810) Inconel 800HT (UNS N08811) |
| Standards | ASTM B407, ASTM B163, ASME SB407, ASME SB163 |
| Tube Outer Diameter (OD) | 6.35 mm to 50.8 mm (1/4" to 2") |
| Wall Thickness | 0.5 mm to 3 mm |
| Tube Length | Up to 20 meters (custom lengths available) |
| Fin Type | Extruded, Welded, or Embedded |
| Fin Height | 5 mm to 15 mm (customizable) |
| Fin Thickness | 0.3 mm to 1 mm |
| Fin Density | Up to 12 FPI (Fins Per Inch) or per custom requirement |
| Maximum Operating Temperature | 800°C (1472°F) – 800H 870°C (1600°F) – 800HT |
| Tensile Strength (min) | 515 MPa (74.7 ksi) – 800 450 MPa (65 ksi) – 800H/800HT |
| Yield Strength (0.2% offset) | 205 MPa (29.7 ksi) – 800 180 MPa (26 ksi) – 800H/800HT |
| Elongation (min) | ≥ 30% |
| Hardness (Brinell) | Max 200 HB |
| Corrosion Resistance | Excellent – resists oxidation, carburization, sulfidation |
| Surface Finish | Mill finish, polished, or coated (on request) |
| Applications | Heat exchangers, reformers, superheaters, petrochemical processing |
| Weldability | Excellent – suitable for TIG, MIG, and manual welding |
| Testing & Certification | Eddy Current, Hydrostatic, PMI, NDT, per client specs |
Inconel 800 series fin tubes offer a unique combination of high-temperature strength, corrosion resistance, and heat transfer efficiency. Their ability to withstand thermal cycling, oxidation, and carburization makes them highly reliable for extended service in harsh industrial environments. The use of these alloys reduces maintenance costs, extends equipment life, and enhances the safety and efficiency of thermal systems. With customizable design and proven performance, Inconel 800/800H/800HT fin tubes are a preferred choice for high-demand heat exchange applications.
Chemical Composition of Inconel 800 800H 800HT Fin tubes
| Element | Inconel 800 (UNS N08800) | Inconel 800H (UNS N08810) | Inconel 800HT (UNS N08811) |
|---|---|---|---|
| Nickel (Ni) | 30.0 – 35.0% | 30.0 – 35.0% | 30.0 – 35.0% |
| Chromium (Cr) | 19.0 – 23.0% | 19.0 – 23.0% | 19.0 – 23.0% |
| Iron (Fe) | Balance | Balance | Balance |
| Carbon (C) | ≤ 0.10% | 0.05 – 0.10% | 0.06 – 0.10% |
| Aluminum (Al) | 0.15 – 0.60% | 0.15 – 0.60% | 0.25 – 0.60% |
| Titanium (Ti) | 0.15 – 0.60% | 0.15 – 0.60% | 0.25 – 0.60% |
| Al + Ti (total) | 0.30 – 1.20% | 0.30 – 1.20% | 0.85 – 1.20% |
| Manganese (Mn) | ≤ 1.50% | ≤ 1.50% | ≤ 1.50% |
| Silicon (Si) | ≤ 1.00% | ≤ 1.00% | ≤ 1.00% |
| Sulfur (S) | ≤ 0.015% | ≤ 0.015% | ≤ 0.015% |
| Copper (Cu) | ≤ 0.75% | ≤ 0.75% | ≤ 0.75% |
With a proven track record as a Inconel 800 800H 800HT Fin tubes exporter in over 30 countries, Sumer Metal Industries ensures global availability, third-party inspection support, and client-specific customization. Our wide export network combined with strict quality standards has made us a preferred choice for SS 800 800H 800HT tubing worldwide.
Specification of Inconel 800 800H 800HT Fin tubes
| Property | Specification / Range |
|---|---|
| Alloy Grades | Inconel 800 (UNS N08800) Inconel 800H (UNS N08810) Inconel 800HT (UNS N08811) |
| Standards | ASTM B407, ASTM B163, ASME SB407, ASME SB163 |
| Tube Outer Diameter (OD) | 6.35 mm to 50.8 mm (1/4" to 2") |
| Wall Thickness | 0.5 mm to 3 mm |
| Tube Length | Up to 20 meters (custom lengths available) |
| Fin Type | Extruded, Welded, or Embedded |
| Fin Height | 5 mm to 15 mm (customizable) |
| Fin Thickness | 0.3 mm to 1 mm |
| Fin Density | Up to 12 FPI (Fins Per Inch) or per custom requirement |
| Maximum Operating Temperature | 800°C (1472°F) – 800H 870°C (1600°F) – 800HT |
| Tensile Strength (min) | 515 MPa (74.7 ksi) – 800 450 MPa (65 ksi) – 800H/800HT |
| Yield Strength (0.2% offset) | 205 MPa (29.7 ksi) – 800 180 MPa (26 ksi) – 800H/800HT |
| Elongation (min) | ≥ 30% |
| Hardness (Brinell) | Max 200 HB |
| Corrosion Resistance | Excellent – resists oxidation, carburization, sulfidation |
| Surface Finish | Mill finish, polished, or coated (on request) |
| Applications | Heat exchangers, reformers, superheaters, petrochemical processing |
| Weldability | Excellent – suitable for TIG, MIG, and manual welding |
| Testing & Certification | Eddy Current, Hydrostatic, PMI, NDT, per client specs |
🏭 Industry & Application
- ✅ Inconel 800 800H 800HT Fin Tubes for Medical Industry
- ✅ Inconel 800 800H 800HT Fin Tubes for Chemical Processing
- ✅ Inconel 800 800H 800HT Tubes for Fin Lines
- ✅ Inconel 800 800H 800HT Fin tubes for Gas & Liquid Flow
- ✅ Inconel 800 800H 800HT Tubes for Heat Exchangers
❓ Frequently Asked Questions (FAQs)
Q1:What are Inconel 800, 800H, and 800HT fin tubes?
These are high-temperature heat exchanger tubes with extended fins made from iron-nickel-chromium alloys. They are designed for improved heat transfer efficiency and long-term durability in extreme thermal environments.
Q2:What are the main applications for these fin tubes?
They are used in heat exchangers, superheaters, ethylene cracking furnaces, petrochemical reformers, waste heat recovery units, power plants, and industrial furnaces—especially where oxidation, carburization, and thermal cycling occur.
Q3:Why are fins used on Inconel 800-series tubes?
Fins increase the surface area of the tube, enhancing heat transfer efficiency in compact systems. This is especially valuable in high-temperature environments where heat must be effectively transferred without increasing equipment size.
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At Sumer Metal Industries Pvt. Ltd., we follow a zero-defect policy by implementing stringent quality checks, using certified raw materials, and continuously improving our processes to deliver reliable and consistent tubing solutions
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