UNS 50400 GR7 Heat Exchanger Pipe Air Preheater Tube In Chemical Industries

The ASME SB338 standard governs the material specifications for titanium tubes and titanium alloy tubes used in heat exchangers and other high-pressure applications. The "SB" designation indicates that the material is for boiler and pressure vessel applications.

• Titanium Grade 7 (Ti-0.2Pd) is an alloy primarily composed of titanium with a small percentage of palladium (0.12-0.25%). This alloy offers enhanced corrosion resistance in aggressive environments.
• Titanium (Ti) provides excellent strength-to-weight ratio, outstanding corrosion resistance, and high-temperature performance.
• Palladium (Pd) improves resistance to general corrosion, particularly in acidic environments.

• Cold Working: Typically processed into tubes, sheets, and plates through extrusion, rolling, or drawing.
• Heat Treatment: Annealing or solution heat treatment can improve ductility and strength in specific applications.
• Welding: Weldable using TIG processes, with palladium enhancing weldability compared to other titanium grades.
• Surface Finish: Smooth surfaces preferred for heat exchanger applications to enhance efficiency and reduce fouling.

• Seawater heat exchangers for ships, offshore oil rigs, and desalination plants
• Cooling systems for naval vessels and submarines
• Offshore oil and gas platform heat exchangers
• Petrochemical refining cooling systems
• Reverse osmosis (RO) desalination unit cooling systems