ASME SB338 GR.7 / UNS R52400 Titanium Alloy Seamless Heat Exchanger Tube

Overview:

Gr.7 titanium tubes are made primarily from Grade 7 titanium alloy, which consists of a high percentage of pure titanium (around 99.5%) and a small amount of palladium. The addition of palladium enhances the corrosion resistance and provides improved strength compared to other commercially pure titanium grades.

Gr.7 titanium tubes offer excellent corrosion resistance, particularly in aggressive environments such as seawater, salt solutions, and certain acids. The presence of palladium in the alloy enhances its resistance to corrosion, making it suitable for applications where exposure to corrosive media is expected.

Although Grade 7 titanium is not as strong as some of the titanium alloys, it still exhibits good strength properties, making Gr.7 titanium tubes suitable for applications where both strength and corrosion resistance are essential. The mechanical properties can vary depending on the manufacturing process and heat treatment.

Gr.7 titanium tubes find applications in various industries, including chemical processing, offshore and marine, aerospace, oil and gas, and medical. They are commonly used in heat exchangers, condensers, desalination plants, seawater cooling systems, chemical reactors, and medical implants.

Specification:

Chemical Composition:

Mechanical Properties:

Applications:

1. Chemical Processing: Gr.7 titanium tubes are widely used in chemical processing industries for applications such as heat exchangers, reactors, and piping systems. Their corrosion resistance makes them suitable for handling corrosive chemicals, acids, and other aggressive media.

2. Offshore and Marine: Gr.7 titanium tubes find application in offshore and marine environments, including seawater cooling systems, desalination plants, and saltwater pipelines. The alloy's resistance to corrosion and biofouling in seawater conditions is advantageous in these applications.

3. Aerospace: Gr.7 titanium tubes are used in the aerospace industry for various applications such as hydraulic and pneumatic systems, fuel lines, and structural components. The high strength-to-weight ratio and corrosion resistance of Gr.7 titanium make it suitable for aircraft and spacecraft.

4. Oil and Gas: Gr.7 titanium tubes are utilized in the oil and gas industry in applications such as subsea equipment, heat exchangers, and piping systems. Their resistance to corrosion and erosion in harsh operating conditions makes them ideal for offshore platforms and oil refineries.

5. Medical Implants: Gr.7 titanium tubes are employed in medical applications, particularly for the manufacture of orthopedic implants and surgical instruments. The biocompatibility and corrosion resistance of titanium make it an excellent material for implants within the human body.

6. Heat Exchangers: Gr.7 titanium tubes are utilized in various heat exchanger systems, including power generation, chemical processing, and HVAC (heating, ventilation, and air conditioning) applications. The tubes efficiently transfer thermal energy between fluids while providing corrosion resistance.

7. Sports Equipment: Gr.7 titanium tubes are used in the production of sports equipment such as bicycle frames, golf club shafts, and tennis racket frames. The alloy's strength and lightweight nature contribute to the performance and durability of these sporting goods.