Astm A106 Gr B Carbon Steel Studded Tube for Heat Exchangers
ASTM A106 Gr B Studded Tubes are designed for high-temperature service in corrosive environments, offering superior heat transfer efficiency and durability.
ASTM A106 specification covers seamless carbon steel pipe for high-temperature service in NPS 1⁄8 to NPS 48 [DN 6 to DN 1200] inclusive, with nominal wall thickness as given in ASME B36.10M.
| Grade | C | Mn | P | S | Si | Cr | Cu | Mo | Ni | V |
|---|---|---|---|---|---|---|---|---|---|---|
| Gr.B | 0.30 | 0.29-1.06 | 0.035 | 0.035 | 0.10 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
| Grade | Tensile Strength, min | Yield Strength (0.2% Offset, min) |
|---|---|---|
| Gr. B | 60ksi (415 MPa) | 35ksi (240 MPa) |
Also known as nail head tubes or nail-like ribbed tubes, studded fin tubes are widely used in petrochemical industries, particularly in the convection chambers of tubular furnaces to enhance heat transfer effects.
Typically constructed from materials such as carbon steel, stainless steel, alloy or copper, providing durability and resistance to corrosion.
- Corrosion resistance, wear resistance, low contact thermal resistance, high stability
- Studs disrupt fluid flow for better mixing and improved thermal performance
- Significantly improves heat exchange efficiency compared to smooth tubes
- Robust construction suitable for harsh operating conditions including high temperatures and pressures
- Versatile applications across oil and gas, chemical processing, and power generation industries
- Cooling systems: Cooling towers, condensers, and evaporators where efficient heat dissipation is essential
- Fired Heaters: Thermal process equipment to enhance heat transfer efficiency
- Marine Applications: Ship cooling systems and marine heat exchangers requiring robust performance
- Industrial Equipment: Heat exchangers, boilers, furnaces and refineries for power generation, petrochemical processes, and HVAC systems
| Type | Description | Base tube O.D. (mm) | Fin pitch | Fin height | Fin thick |
|---|---|---|---|---|---|
| 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 |
| H/HH type | fin tube | 25-63 | 8~30 | <200 | 1.5-3.5 |
| Studed fin tube | 25-219 | 8~30 | 5~35 | φ5-20 |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.