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I-Type Longitudinal Fin Tubes Supplier in India

What Are I-Type Longitudinal Fin Tubes?

The I-Type longitudinal fin tubes are manufactured as heat transfer tubes having straight fins which are welded longitudinally on the outside of the tube wall. The increase in the outside heat transfer area by the longitudinal fins results in enhanced performance when the tubes are applied on the gas-side. The resistance welded longitudinal fin tubes have found a wide range of applications such as boilers, economizers, air preheaters, heat exchangers and waste heat recovery units.

I-Type Longitudinal Fin Tubes Supplier in India

Effective heat transfer plays a crucial role in modern industrial processes, and the correct choice of finned tubes can enhance the thermal performance while lowering operating costs. The I-Type Longitudinal Fin Tubes have proven themselves one of the most efficient solutions for gas to gas heat transfer, economizer, waste heat recovery units, boilers and heat exchangers.

We, as a leading manufacturer & supplier of I-Type Longitudinal Fin Tubes, can deliver you with accurately manufactured Longitudinal Finned Tubes that are built with international quality standards, which increase heat transfer rate to a greater extent, suitable to use under extreme operation conditions & with extended service life for various industrial sectors like Power, Petrochemical, Refineries, HVAC, Marine, process industries, etc.

We are a trusted supplier of the Stainless Steel I-Type Longitudinally Finned Tubes and Carbon Steel Longitudinally Finned Tubes with standard or custom fin configurations, as per your application requirements.

What Are I-Type Longitudinal Fin Tubes?

The longitudinal finned tubing consists of fin tubes with fins attached in parallel to the tube axis. Compared to the helical finned tubing where fins are wound in helical form around the tube, the straight fin is formed along the whole tube length.

The design helps the increased effectively finned surface to be exposed to the outside fluids and gases. Higher heat transfer rates can be obtained along with smaller size equipment. The fins are normally manufactured through the resistance welding technique which establishes a strong metallurgical connection between the fin and the tube, ensuring good thermal conductivity, mechanical strength and reliability in high temperature environments.


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How Resistance Welded Longitudinal Fin Tubes Improve Heat Transfer


Resistance welded longitudinal fin tubes are manufactured using a controlled welding process that permanently bonds the fin material to the base tube.

Key advantages include:

  •   Superior heat transfer efficiency
  •   Excellent thermal conductivity
  •   Strong fin-to-tube bonding
  •   Reduced thermal resistance
  •   High mechanical durability
  •   Improved corrosion resistance
  •   Longer operational lifespan
  •   Lower maintenance requirements

The resistance welding process eliminates air gaps between the fin and tube, ensuring maximum heat transfer performance throughout the product's service life.

Technical Specifications of I-Type Longitudinal Fin Tubes

Parameter

Specification

Tube Outside Diameter

12.7 mm to 114.3 mm
Tube Length
Up to 12,000 mm
Fin Type
I-Type Straight Longitudinal Fins
Fin Height
5 mm to 40 mm
Fin Thickness
0.8 mm to 4.0 mm
Number of Fins
2, 4, 6, 8, 10, 12 Fins
Fin Pitch
Customized
Fin Attachment
Resistance Welding
Operating Temperature
Up to 600°C
Operating Pressure
As per design requirements
Manufacturing Standard
ASTM, ASME, DIN, EN
Inspection
Visual, Dimensional & Weld Integrity Testing

Available Tube & Fin Materials


Available Tube Materials


Available Fin Materials

  •   Stainless Steel
  •   Carbon Steel
  •   Alloy Steel
  •   Aluminum
  •   Copper

Stainless Steel I-Type Longitudinal Fin Tubes


Among various fin tubes for industrial heat transfer, Stainless Steel I-Type Longitudinal Fin Tubes are one of the most favorable selections, because of their good corrosion resistance, high temperature strength, and service life.

Benefits include:

  •   Resistance to oxidation and corrosion
  •   High mechanical strength
  •   Excellent thermal conductivity
  •   Suitable for aggressive environments
  •   Reduced maintenance costs
  •   Longer equipment lifespan

Industries operating in corrosive environments often choose SS 304 and SS 316 longitudinal fin tubes for superior performance and reliability.

Applications of I-Fin Longitudinal Tubing


I-fin longitudinal tubing is widely used across industries where efficient heat exchange is essential:

  •   Power Plants: Used in economizers, air preheaters, and waste heat recovery units to improve energy efficiency.
  •   Petrochemical Industry: Enhances heat transfer in process heaters and heat exchangers.
  •   Oil & Gas Industry: Supports thermal management systems operating under demanding conditions.
  •   Chemical Processing Plants: Provides reliable heat exchange performance in corrosive environments.
  •   Marine Industry: Used in shipboard heat recovery and cooling systems.
  •   HVAC Systems: Improves efficiency of industrial air heating and cooling equipment.
  •   Waste Heat Recovery Systems: Captures and utilizes excess heat for energy conservation.
  •   Industrial Boilers: Enhances boiler efficiency and reduces fuel consumption.

Benefits of Choosing I-Type Longitudinal Finned Tubes


  •   Enhanced Heat Transfer Performance: The increased external surface area enables more effective heat exchange between the tube and surrounding medium.
  •   Improved Energy Efficiency: Higher heat transfer rates reduce energy losses and improve overall system efficiency.
  •   Compact Equipment Design: Greater thermal performance allows smaller heat exchanger footprints.
  •   Lower Operating Costs: Improved efficiency translates into reduced fuel and energy consumption.
  •   Strong Mechanical Integrity: Resistance welded construction ensures long-term structural stability.
  •   Reduced Maintenance: Durable construction minimizes downtime and replacement costs.

Manufacturing Process of Resistance Welded Longitudinal Fin Tubes


I-Type Longitudinal Fin Tubes

Why Choose Us as Your I-Type Longitudinal Fin Tubes Supplier?


Selecting the right supplier directly impacts heat exchanger performance and operational reliability. Our strengths include:

  •   Extensive manufacturing expertise
  •   Precision-engineered products
  •   Advanced resistance welding technology
  •   Customized fin configurations
  •   Strict quality control procedures
  •   Timely project deliveries
  •   Competitive pricing
  •   Global export capabilities
  •   Industry-standard testing and inspection

We focus on delivering consistent quality and dependable thermal solutions that meet the specific needs of industrial customers worldwide.

Buy I-Type Longitudinal Finned Tubes for High-Efficiency Heat Transfer


When efficiency, durability, and thermal performance matter, I-Type Longitudinal Finned Tubes offer a proven solution. Manufactured using advanced resistance welding technology and premium-grade materials, these finned tubes help maximize heat transfer while reducing operational costs.

Whether your project requires Stainless Steel I-type Longitudinal Fin Tubes, customized fin arrangements, or high-temperature heat exchanger tubing, we can provide solutions engineered for reliable long-term performance.

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