Reliable 347 Stainless Steel Fin Tube Manufacturers In India Delivering Precision Finned Tubes For Excellent Thermal Efficiency, Oxidation Resistance & Critical Heat Exchange Systems
| Fin Thickness | Minimum 0.8mm, Maximum 3 Mm |
|---|---|
| Fin Height | Minimum 0.25″(6.35 Mm), 1.5″(38 Mm) |
| Fin Density : | Minimum 46 Fins Per Meter, Maximum 287 Fins Per Meter |
| Material | Carbon Steel, Stainless Steel |
| Tubes Diameter | 30mm Od Minimum, 220mm Od Maximum |
347 Stainless Steel Fin Tube Manufacturers in India Supplying High-Performance Stabilized SS 347 / 347H Fin Tubes for Heat Transfer, High-Temperature & Industrial Applications
Timex Metals is a reputed 347 Stainless steel Fin Tube Manufacturer, which has high-grade fin tubes that are characterized by their high heat transfer efficiency and have corrosion resistance. They are made of stainless steel grade 347 that has niobium to provide better stabilization against intergranular corrosion; hence, they are suitable in high-temperature conditions. They are common in heat exchangers, condensers, and boilers in the petrochemical, power-generating, and marine industries. They are designed to provide excellent thermal performance and life and come in different dimensions and specifications that meet the needs of different industries.
Material | Grade | Fin Construction Type | Tube OD (mm) | Wall Thickness (mm) | Fin Height (mm) | Fin Pitch (FPI) | Max Service Temp (°C) | Approx. Weight (kg/m) |
|---|---|---|---|---|---|---|---|---|
| Stainless Steel | ASTM A213 TP347 | Helical / Wrapped | 25.4 | 2.11 | 9 | 10 | 800 | 2.85 |
| Stainless Steel | ASTM A213 TP347 | Helical / Wrapped | 31.75 | 2.77 | 11 | 9 | 800 | 4.10 |
| Stainless Steel | ASTM A213 TP347 | Helical / Wrapped | 38.10 | 3.05 | 13 | 8 | 820 | 5.75 |
| Stainless Steel | ASTM A213 TP347 | Embedded (G-Type) | 31.75 | 2.77 | 12 | 9 | 850 | 4.45 |
| Stainless Steel | ASTM A213 TP347 | Embedded (G-Type) | 50.80 | 3.40 | 15 | 7 | 870 | 8.95 |
347 stainless steel fin tubes are chosen for applications involving sustained high temperatures and frequent thermal cycling, where resistance to carbide precipitation is critical. The niobium stabilization improves structural reliability and reduces the risk of intergranular corrosion during long operating periods. In many system designs, engineers compare this grade with 304 Stainless Steel Fin Tube options to balance temperature capability against cost and corrosion requirements. From a B2B portal perspective, having clear data on fin construction, temperature limits, and weight per meter helps users evaluate mechanical loads, lifecycle performance, and suitability for high-temperature air-side heat transfer systems before finalizing specifications.
347 Stainless Steel Fin Tube – Standard Size & Weight Chart
Tube OD (mm) | Nominal Size (NB) | Wall Thickness (mm) | Fin Type | Approx. Weight per Meter (Kg) | Approx. Weight – 6 Meters (Kg) | Approx. Weight – 12 Meters (Kg) |
|---|---|---|---|---|---|---|
| 19.05 | ½" NB | 1.65 | L / Helical Fin | 3.3 | 19.8 | 39.6 |
| 25.40 | ¾" NB | 2.11 | L / Helical Fin | 4.9 | 29.4 | 58.8 |
| 31.75 | 1" NB | 2.11 | Helical / G-Fin | 6.4 | 38.4 | 76.8 |
| 38.10 | 1¼" NB | 2.77 | Helical / G-Fin | 9.1 | 54.6 | 109.2 |
| 50.80 | 2" NB | 2.77 | Helical / G-Fin | 12.9 | 77.4 | 154.8 |
| 63.50 | 2½" NB | 3.05 | G / Extruded Fin | 18.0 | 108.0 | 216.0 |
| 76.20 | 3" NB | 3.05 | G / Extruded Fin | 23.5 | 141.0 | 282.0 |
| 88.90 | 3½" NB | 3.40 | G / Extruded Fin | 29.4 | 176.4 | 352.8 |
| 101.60 | 4" NB | 3.76 | Extruded Fin | 36.6 | 219.6 | 439.2 |
347 Stainless Steel Fin Tubes are manufactured using advanced tube forming and precision finning processes to achieve high thermal efficiency, excellent structural stability, and dependable performance in severe operating environments. As a niobium-stabilized austenitic stainless steel, grade 347 is specifically designed to retain strength and resist intergranular corrosion at elevated temperatures. Each fin tube is produced under strict process control to maintain uniform tube dimensions, accurate fin geometry, strong fin-to-tube bonding, and consistent heat transfer characteristics, making it suitable for long-term industrial service.
The use of 347 stainless steel makes these fin tubes particularly effective in applications where continuous high-temperature exposure, thermal cycling, and oxidizing conditions are present. The stabilized alloy composition enhances resistance to carbide precipitation, thereby improving service life and reliability. Incorporating 347 Stainless Steel Fin Tubes into heat exchange systems improves overall thermal performance, reduces downtime, and supports safe, efficient operation in demanding process conditions.
- Commonly used in high-temperature heat transfer and continuous-duty applications where oxidation resistance and metallurgical stability are critical.
- Manufactured in compliance with ASTM, ASME, ANSI, and ISO standards, ensuring consistent quality, dimensional accuracy, and full material traceability.
- Available in SS 347 and 347H grades with multiple fin configurations to meet specific thermal and airflow requirements.
- Suitable for operating conditions involving thermal cycling, vibration, pressure fluctuations, and aggressive process environments, ensuring reliable long-term performance.
- Widely applied across petrochemical plants, oil & gas processing units, power generation facilities, refineries, boilers, air coolers, heat exchangers, and high-temperature industrial systems where safety, efficiency, and durability are essential.
347 Stainless Steel Fin Tube – Client Supply Project Overview
This project involved the supply of high-performance 347 Stainless Steel Fin Tubes for critical heat transfer and high-temperature process applications across multiple industrial locations in India. The fin tubes were manufactured using precision tube forming combined with advanced finning techniques to achieve accurate outer diameters, uniform fin profiles, and secure fin-to-tube bonding. The use of niobium-stabilized stainless steel grade 347 ensured excellent resistance to intergranular corrosion, oxidation, and strength degradation at elevated operating temperatures. All supplied fin tubes conformed to applicable ASTM, ASME, ANSI, and ISO standards, ensuring consistent quality, metallurgical stability, and full material traceability.
Each batch of 347 Stainless Steel Fin Tubes underwent stringent quality assurance procedures, including dimensional inspection, base tube material verification, fin attachment integrity checks, and visual examination, to meet project-specific technical and operational requirements. The project was completed within the committed delivery schedule and supported the client’s requirement for reliable, low-maintenance heat transfer solutions capable of operating under high temperatures, thermal cycling, pressure variations, and continuous service conditions in demanding industrial environments.
347 Stainless Steel Fin Tube – Project Supply Details
Product Supplied | Quantity | Cities (India) |
|---|---|---|
| SS 347 Fin Tubes for High-Temperature Heat Exchangers | 1,150 Tubes | Mumbai |
| SS 347 Fin Tubes for Air Cooler Systems | 980 Tubes | Hyderabad |
| Helical Fin Tubes (SS 347 / 347H) | 1,050 Tubes | Pune |
| Extruded Fin Tubes in SS 347 for Process Plants | 1,300 Tubes | Chennai |
347 Stainless Steel Fin Tubes are widely selected for applications requiring stable performance at elevated temperatures, resistance to carbide precipitation, and long service life. From a B2B engineering and procurement perspective, access to clear data on material grade, fin configuration, operating temperature limits, and weight per meter enables informed decision-making and ensures alignment with real-world operating conditions rather than generic specifications.
Type of Sub-products
Welded Fin Tubes Welded Fin Tubes
Fins are welded to the tube for maximum strength, ideal for high temperature applications.
Crimped Fin Tubes Crimped Fin Tubes
Fins are crimped and mechanically attached, offering cost effective heat exchange solutions.