0.05mm Thick Titanium Grade 2 Foil

Titanium Grade 2 Foil
Purity : 99.6+%
TITANIUM ASTM B 265 Annealed Foil
UNS R50400 . W.Nr.3.7035

Note : Contact us directly if you need larger quantity, custom cut lengths or lengths longer than those listed above. We will be happy to assist you.

Titanium Grade 2 foil (thickness typically <0.5mm) is the most widely used "commercially pure" titanium foil due to its ideal balance of moderate strength, high ductility, and extreme corrosion resistance.

Because it forms a permanent, self-healing oxide layer, it is nearly indestructible in saltwater and various chemical environments, making it a "fit and forget" material for technical industries.
1. Chemical Processing & Industrial

Grade 2 foil is the primary choice for lining equipment that handles aggressive fluids.

    Corrosion Barriers: Used as a thin lining for pressure vessels, reactors, and storage tanks to protect the outer steel structure from corrosive chemicals like nitric acid, moist chlorine, and organic acids.

    Heat Exchangers: Its thermal stability and resistance to pitting make it a standard material for the thin plates and gaskets in plate-frame heat exchangers.

    Electroplating: Used for cathodes, starter-sheet blanks, and anode baskets in metal finishing and recovery processes.

2. Aerospace & Aviation

While Grade 5 is used for structural bolts, Grade 2 foil is used in "warm" areas and fluid systems.

    Hydraulic & Fuel Systems: Used to manufacture thin-walled conduits and fuel tank linings that must be lightweight and resistant to vibration fatigue.

    Heat Shields & Ductwork: Its ability to withstand temperatures up to 425°C (800°F) makes it ideal for engine shielding, firewalls, and air-conditioning ducts.

    Honeycomb Structures: Corrugated Grade 2 foil is bonded between titanium sheets to create ultra-lightweight, high-stiffness sandwich panels for fuselage skins.

3. Energy & Renewable Tech

    Hydrogen Fuel Cells: Titanium foil is a critical substrate for bipolar plates. It is often coated with noble metals (like Gold or Platinum) to provide high electrical conductivity while surviving the acidic environment inside the cell.
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    Battery Technology: Used as a current collector or substrate in high-performance lithium-ion and sodium-ion batteries due to its chemical stability and low weight.

    Nuclear Power: Employed in steam generators and radioactive waste containers due to its long-term durability and resistance to stress-corrosion cracking (SCC).