TP316L ASTM A312 Stainless Steel Tube Finning For Furnace And Oil Refinery
| Attribute | Value |
|---|---|
| Product | Fin Tubes or Finned Tube |
| Type | Studded Tubes |
| Standard | ASTM A312 |
| Material | TP316L Base Tubes and SS Fins |
| Packing | Ply-wooden Case With Iron Frame |
| Use | For large equipment, Heat Exchanger / Boiler / Furnaces / Condensers / Evaporators, etc |
ASTM A312 TP316L Stainless Steel Studded Tubes are designed for furnace and oil refinery applications. These tubes cover seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service.
| Grade | C | Mn | P | S | Si | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| TP316L | 0.035 | 2.00 | 0.045 | 0.03 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 |
| Heat Treating Temperature | Tensile Strength, min | Yield Strength (0.2% Offset, min) |
|---|---|---|
| 1900°F [1040°C] | 70ksi (485 MPa) | 25ksi (170 MPa) |
A studded fin tube, also known as a studded tube or pin fin tube, is a specialized finned tube used in heat exchangers to enhance heat transfer efficiency. These tubes are particularly effective in the convection chamber of tubular furnaces where they significantly increase the surface area for heat transfer compared to plain tubes.
The heat transfer efficiency of studded fin tubes can be 2-3 times higher than that of bare tubes. They are constructed by welding specially formed studs (round pins) onto the surface of a base tube, which can be arranged in various configurations to meet specific requirements.
Available in materials including carbon steel, stainless steel, alloy or copper, these tubes offer durability and corrosion resistance tailored to application requirements.
- High heat transfer efficiency (2-3x better than bare tubes)
- Enhanced durability and corrosion resistance
- Customizable sizes and configurations
- Promotes turbulence for improved heat exchange
- Suitable for high-temperature applications
Studded fin tubes are widely used in industrial heat exchanger applications including:
- Boilers and furnaces
- Oil refinery equipment
- Condensers and evaporators
- Industrial heaters
- Systems requiring efficient heat transfer with low airside coefficients
| Type | Description | Base tube O.D. (mm) | Fin pitch (mm) | Fin height (mm) | Fin thickness (mm) |
|---|---|---|---|---|---|
| Embedded | G-type fin tube | 16-63 | 2.1~5 | <17 | ~0.4 |
| Extruded | Single metal / Combined metal | 8-51 | 1.6~10 | <17 | 0.2-0.4 |
| Low fin tube | T-type fin tube | 10-38 | 0.6~2 | <1.6 | ~0.3 |
| Bamboo tube | Corrugated tube | 16-51 | 8.0~30 | <2.5 | ~0.3 |
| Wound | L / KL / LL type fin tube | 16-63 | 2.1~5 | <17 | ~0.4 |
| String | String fin tube | 25-38 | 2.1-3.5 | <20 | 0.2-0.5 |
| U-type | U-type fin tube | 16-38 | / | / | / |
| Welding | HF-welding fin tube | 16-219 | 3~25 | 5~30 | 0.8-3 |
| Studded | Studded fin tube | 25-219 | 8~30 | 5~35 | φ5-20 |
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