Fin Tubes
Fin Tubes
ASTM A179 | ASTM A192 | ASTM A210 | ASTM A213 | ASTM A335 — Base tube specification selected by application
Elite supplies fin tubes for heat-transfer equipment where an extended external surface increases heat-transfer capacity. Fin tubes are used in air-cooled heat exchangers, fin-fan coolers, economizers, waste-heat recovery systems, power plants, and petrochemical process facilities.
Available configurations include embedded fin tubes, extruded fin tubes, and L-foot or other specified tension-wound fin tubes. Base tube material, fin material, geometry, and manufacturing method are selected according to the operating temperature, corrosion environment, thermal duty, and project specification.
Technical Specifications
| Parameter | Elite Specification |
|---|---|
| Product | Fin Tubes |
| Base Tube | Carbon steel, alloy steel, stainless steel, copper or specified material |
| Fin Types | Extruded, embedded, L-foot, LL-foot, KL-foot and other specified types |
| Base Tube OD | Project-specific; commonly approximately 12.7–60.3 mm |
| Fin Height | Designed according to thermal and mechanical requirements |
| Fin Thickness | According to fin type and design |
| Fin Pitch | Project-specific |
| Tube Length | Commonly 3–18 m, subject to design and manufacturing capability |
| Fin Material | Carbon steel, stainless steel, aluminium, copper or other compatible material |
| Connection | Plain ends or specified end preparation |
| Inspection | Dimensional, fin attachment, material and performance checks as specified |
| Documentation | MTC, inspection reports and project documentation |
Base Tube Materials and Standards
| Material category | Typical specifications / grades | |
|---|---|---|
| Carbon steel | ASTM A179, A192, A210, or another suitable tube specification | |
| Alloy steel | ASTM A213 T5, T9, T11, T22 and other applicable grades | |
| Stainless steel | ASTM A213 TP304/304L, TP316/316L and other applicable grades | |
| Copper | ASTM B75 or other suitable copper-tube specification | |
| Aluminium fin material | Grade selected according to the fin design and operating conditions | |
| The standards above apply to the base tube material where appropriate; they do not by themselves define the complete fin tube's geometry, fin attachment, or thermal performance. | ||
Fin Tube Types
Extruded Fin Tubes
Fins are formed from an outer metal sleeve over the base tube, creating a mechanically integrated fin structure. Often selected for applications requiring robust fin attachment and corrosion protection of the covered tube surface, subject to the design.
Embedded (G-Type) Fin Tubes
Fins are mechanically embedded into a groove formed in the base tube. This configuration provides a mechanically secured fin-to-tube connection for specified operating conditions.
L-Foot and Related Wound Fin Tubes
Metal strip is wound around the base tube with an L-shaped foot or specified variation. Selection depends on operating temperature, corrosion exposure, thermal performance, and fin-retention requirements.
Manufacturing and Quality
- Base tube material and dimensions verified against the order.
- Controlled fin forming, winding, extrusion, or embedding.
- Fin pitch, height, thickness, and overall length inspection.
- Fin attachment and surface-condition checks.
- Straightness and end preparation inspection.
- Additional thermal performance tests or project-specific inspections where required.
Packing and Delivery
- Bundled with suitable separators and protective supports.
- Wooden cases or crates for export, where specified.
- Tube ends protected against handling damage.
- Identification labels and material traceability.
- Custom packing to minimize fin deformation during transport.
Industries and Applications
- Air-cooled heat exchangers
- Fin-fan coolers
- Power generation
- Refinery and petrochemical plants
- Natural gas processing
- Waste-heat recovery
- HVAC and industrial cooling
- Process heat-transfer equipment
Ordering Information
Ordering information: Base Tube Standard + Grade + Tube OD + Wall Thickness + Fin Type + Fin Material + Fin Height + Fin Pitch + Length + Quantity + Inspection.
Example: Carbon Steel Base Tube ASTM A179, specified OD and wall thickness, extruded aluminium fins, specified fin height and pitch, 6 m length, with inspection and packing according to project requirements.
