Double Fin Tubes are a type of heat transfer device that incorporates two fins into one base tube, providing greater thermal capacity and efficiency in industrial heat exchange and cooling systems. They have a compact design that allows for efficient heat transfer and ensures optimal equipment space, making them ideal for use in applications involving high-pressure gas-to-liquid and fluid-to-fluid heat exchange. The tubes are manufactured from a range of materials, lengths and fin designs to suit particular engineering needs. A reliable manufacturer and supplier of Double Fin Tubes for various industrial applications, Amardeep Steel is renowned for its dependable manufacturing capabilities, quality-focused production, and custom-made solutions.
Technical Data
Specifications of Double Fin Tubes
Specification Parameter | Technical Range / Capability |
|---|---|
Base Tube Outer Diameter (OD) | [Pending Verification against Amardeep Production Data] |
Base Tube Wall Thickness | 2.0 mm to 6.5 mm (Custom gauges available) |
Fin Height Range | [Pending Verification against Amardeep Production Data] |
Fin Thickness | 1.2 mm to 3.0 mm |
Base Tube Material Options | Carbon Steel, Alloy Steel, Stainless Steel, Copper & Copper Alloys |
Fin Material Options | Carbon Steel, Stainless Steel, Aluminum, Copper |
Manufacturing Process | High-Frequency Resistance Welded (HFRW) / High-Tension Wrapped |
Governing Standards | ASTM A179, ASTM A192, ASTM A213, ASTM B111, ASME SA213 |
Tube End Finish | Plain Ends, Beveled Ends, or Square Cut (Deburred) |
Testing & Inspection | Hydrostatic, Eddy Current, Tensile, Microstructural & Dimensional |
Chemical Compositions of Double Fin Tubes
Material Grade / Standard | Carbon (C) | Manganese (Mn) | Silicon (Si) | Phosphorus (P) | Sulfur (S) | Chromium (Cr) | Nickel (Ni) | Molybdenum (Mo) | Copper / Other |
|---|---|---|---|---|---|---|---|---|---|
ASTM A179(Seamless Cold-Drawn Carbon Steel) | 0.06 – 0.18% | 0.27 – 0.63% | — | Max 0.035% | Max 0.035% | — | — | — | Fe Balance |
ASTM A192(Seamless Carbon Steel Boiler) | 0.06 – 0.18% | 0.27 – 0.63% | Max 0.25% | Max 0.035% | Max 0.035% | — | — | — | Fe Balance |
ASTM A213 TP304(Stainless Steel) | Max 0.08% | Max 2.00% | Max 0.75% | Max 0.045% | Max 0.030% | 18.0 – 20.0% | 8.0 – 11.0% | — | Fe Balance |
ASTM A213 TP316(Stainless Steel) | Max 0.08% | Max 2.00% | Max 0.75% | Max 0.045% | Max 0.030% | 16.0 – 18.0% | 10.0 – 14.0% | 2.0 – 3.0% | Fe Balance |
ASTM A213 T11(Alloy Steel) | 0.05 – 0.15% | 0.30 – 0.60% | 0.50 – 1.00% | Max 0.025% | Max 0.025% | 1.00 – 1.50% | — | 0.44 – 0.65% | Fe Balance |
ASTM B111 C70600(CuNi 90/10) | Max 0.05% | Max 1.00% | — | Max 0.02% | Max 0.02% | — | 9.0 – 11.0% | — | Cu Rem, Fe 1.0-1.8% |
Double Fin Tubes Mechanical Properties
Material Grade / Standard | Tensile Strength (min) | Yield Strength (min) | Elongation in 2" (min) | Hardness (max) |
|---|---|---|---|---|
ASTM A179 | 325 MPa (47 ksi) | 180 MPa (26 ksi) | 35% | 72 HRB / 137 HB |
ASTM A192 | 325 MPa (47 ksi) | 180 MPa (26 ksi) | 35% | 77 HRB / 137 HB |
ASTM A213 TP304 | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 35% | 90 HRB / 192 HB |
ASTM A213 TP316 | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 35% | 90 HRB / 192 HB |
ASTM A213 T11 | 415 MPa (60 ksi) | 205 MPa (30 ksi) | 30% | 89 HRB / 163 HB |
ASTM B111 C70600 | 275 MPa (40 ksi) | 105 MPa (15 ksi) | 30% | — |
Equivalent Grades of Double Fin Tubes
Material Type | US Standard (ASTM / UNS) | EN Standard / Number | DIN Standard | JIS Standard | Indian Standard (IS) |
|---|---|---|---|---|---|
Low Carbon Steel | ASTM A179 / K01200 | P235GH / 1.0345 | St 35.8 (DIN 17175) | JIS G3461 STB 340 | IS 1914 / IS 2418 |
Carbon Steel Boiler | ASTM A192 / K01201 | P265GH / 1.0425 | St 45.8 (DIN 17175) | JIS G3461 STB 410 | IS 1914 Grade 2 |
Stainless 304 | ASTM A213 TP304 / S30400 | X5CrNi18-10 / 1.4301 | X5CrNi18 10 | JIS G3463 SUS 304 TB | IS 6911 04Cr18Ni10 |
Stainless 316 | ASTM A213 TP316 / S31600 | X5CrNiMo17-12-2 / 1.4401 | X5CrNiMo 17 12 2 | JIS G3463 SUS 316 TB | IS 6911 04Cr17Ni12Mo2 |
Alloy Steel 1.25Cr-0.5Mo | ASTM A213 T11 / K11597 | 13CrMo4-5 / 1.7335 | 15CrMo3 | JIS G3462 STBA 23 | IS 2831 |
Cupronickel 90/10 | ASTM B111 C70600 | CuNi10Fe1Mn / 2.0872 | CuNi10Fe1Mn | JIS H3300 C7060 T | IS 1545 |
Double Fin Tubes (dual-fin heat exchanger tubes) in carbon, stainless & copper alloys to ASTM A213 / A179. High efficiency with specs & test certificates.
Request a QuoteApplications and Industrial Uses of Double Fin Tubes
- Air-Cooled Heat Exchangers
- Industrial Air Cooling Systems
- Gas-to-Liquid Heat Exchangers
- HVAC Cooling Equipment
- Process Cooling Systems
- Oil Coolers
- Power Plant Heat Recovery Systems
- Industrial Refrigeration Equipment
Frequently Asked Questions
What are Double Fin Tubes?
Double Fin Tubes are heat transfer tubes featuring a single base tube with two integrated fins to increase surface area and improve thermal efficiency.
What is the purpose of the double fin design in Double Fin Tubes?
The double fin design increases the heat transfer surface area, helping improve thermal performance while saving equipment space.
How do Double Fin Tubes improve heat transfer efficiency?
They increase the available surface area for heat exchange, supporting more efficient heat transfer between fluids and surrounding air.
What is the difference between Double Fin Tubes and Single Fin Tubes?
Double Fin Tubes have two integrated fins on a base tube, while Single Fin Tubes feature one primary fin configuration.
How are Double Fin Tubes manufactured?
They are manufactured by attaching or forming two fins onto a base tube using welding, mechanical bonding, or other suitable methods.
What materials are used to manufacture Double Fin Tubes?
Double Fin Tubes can be manufactured from carbon steel, stainless steel, copper alloys, aluminum, and other engineering materials.
Where are Double Fin Tubes used in industrial applications?
They are used in heat exchangers, air cooling systems, HVAC equipment, oil coolers, and industrial thermal processing systems.
Can Double Fin Tubes be customized in different sizes and fin configurations?
Yes, Double Fin Tubes can be customized in various tube dimensions, materials, fin heights, and configurations based on application requirements.
