ASTM B338 Gr.2 Extruded Finned Tube With Al1060 Fins For Oil & Gas Heat Exchangers

ASTM B338 Gr.2 Extruded Finned Tube With Al1060 Fins For Oil & Gas Heat Exchangers

This is a high-performance heat exchanger tube combining a titanium base tube (ASTM B338 Gr.2) with aluminum fins (Al1060) through an extrusion process.

1. Base Tube: ASTM B338 Gr.2 (Titanium)

Material: ASTM B338 Grade 2 is commercially pure titanium (CP Ti, UNS R50400).

Properties:

Excellent corrosion resistance (especially in seawater, chlorides, acids).

High strength-to-weight ratio.

Good thermal conductivity (lower than copper but better than steel).

Used in marine, chemical, and power industries where corrosion is a concern.

(1). Chemical Composition (ASTM B338 Gr.2)

The composition follows ASTM B338 specifications for Grade 2 titanium:

Key Notes:

Low interstitial elements (O, N, C) ensure good ductility & weldability.

Iron (Fe) improves strength slightly but is kept low for corrosion resistance.

(2). Mechanical Properties (ASTM B338 Gr.2)

Typical mechanical properties for seamless & welded tubes (annealed condition):

Additional Notes:

Excellent toughness even at cryogenic temperatures.

Non-magnetic and biocompatible (used in medical applications).

Corrosion resistance: Outstanding in seawater, chlorides, and acidic environments.

2. Fins: Al1060 Aluminum

Material: 99.6% pure aluminum with high thermal conductivity (~230 W/m·K).

Fin Type: Extruded fins (mechanically bonded to the titanium tube for durability).

Why Aluminum on Titanium?

Aluminum improves heat transfer efficiency while keeping costs lower than all-titanium fins.

The extrusion process ensures a strong bond without welding.

3. Key Features & Advantages

✔ Corrosion Resistance – Ideal for seawater-cooled condensers, desalination plants, and chemical processing.
✔ Lightweight – Titanium + aluminum reduces weight vs. steel tubes.
✔ Thermal Performance – Aluminum fins enhance heat dissipation.
✔ Long Service Life – Resistant to pitting, crevice corrosion, and erosion.

The ASTM B338 Gr.2 Extruded Finned Tube with Al1060 Fins is a high-performance heat transfer component designed for demanding environments where corrosion resistance, lightweight construction, and thermal efficiency are critical. Below are its key applications:

1. Marine & Offshore Systems

• Seawater Coolers & Condensers
  • Used in shipboard cooling systems and offshore oil rigs due to titanium’s resistance to saltwater corrosion.
• Desalination Plants
  • Ideal for multi-stage flash (MSF) and reverse osmosis (RO) heat exchangers where aluminum fins enhance heat transfer.

2. Power Generation

• Power Plant Condensers
  • Titanium tubes prevent corrosion from cooling water (especially brackish or seawater), while Al1060 fins improve air-side heat transfer.
• Geothermal & Waste Heat Recovery
  • Resists acidic and high-mineral content fluids in geothermal brines.

3. Chemical & Petrochemical Processing

• Acid Coolers & Reactors
  • Handles HCl, sulfuric acid, and chlorinated solvents better than stainless steel.
• Refinery Heat Exchangers
  • Used in crude oil preheaters and sour gas coolers where H₂S and CO₂ cause pitting in steel.

4. HVAC & Industrial Cooling

• Air-Cooled Heat Exchangers (ACHEs)
  • Aluminum fins maximize heat dissipation in compressor intercoolers and lube oil coolers.
• Process Cooling for Pharmaceuticals/Food
  • Non-toxic and compliant with hygienic standards.

5. Renewable Energy

• Ocean Thermal Energy Conversion (OTEC)
  • Withstands deep seawater corrosion while maintaining thermal efficiency.

Why Choose This Combination?

Industries That Use This Tube

• Oil & Gas (offshore platforms, LNG plants)
• Shipbuilding (naval vessels, cargo ships)
• Chemical Plants (acid production, fertilizer)
• Power Plants (nuclear, fossil, renewable)

Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories,  the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always.   The factories already got certificates like : ABS, LR, DNV-GL, BV, KR, CCS, ASME, ISO 9001, ISO14001, ISO18001, ect.

Our factories main products as below : 
Factory 1th: Stainless steel seamless tube, Duplex steel seamless tube, Super duplex steel seamless tube, Nickel alloy steel seamless tube;

Factory 2th: Carbon steel seamless tube, Alloy steel seamless tube; Enhanced Heat Tranfer Tube, low fin tube ,U bending workshop;
Factory 3th: High frequency welding fin tube(HFW fin tube, Solid Fin tube, Studded Tube, Serrated Fin tube, Longitudinal welding fin tube), Wound fin tube(L type fin tube, LL type fin tube,  KL type fin tube), Embedded G type fin tube , Extruded fin tube,  low fin tube, U bend & 180deg. Return;

Yuhong Holding Group also has gained rich experience for project package( products contain:Pipes, Fittings, Flanges, heat exchanger, furnace, fired heater, air cooler, boiler) , YUHONG brand has marked its global presence in more than 85 countries, like, Korea, USA, Canada, Mexico, Colombia, Bolivia, Chile, Argentina, Brazil, Ecuador, Austria, New Zealand, Singapore, Malasyia, Indonesia, Thailand, Vietnam, Ukraine, Turkey,Sauid Arabia, Qatar, U.A.E,Israel,India, UK, France, Italy, Gernmany, Poland, Spain,... We have successfully implemented the orders of Cross Country Pipelines for our valuable customers. In addition, we have also developed a huge network of contacts and strategic alliances with most important manufacturers as stockists around the world.