Grade 5 titanium alloy foil is a high-performance thin-walled material, available in thicknesses as low as 0.05 mm. It possesses exceptional flexibility and ductility, allowing light to pass through and easily bent into complex shapes.
Specifications and performance characteristics of Grade 5 titanium alloy foil include: thicknesses typically ranging from 0.02 mm to 2.0 mm, widths up to 1500 mm, and surface treatments such as bright or pickled for enhanced corrosion resistance. Its base alloy composition is Ti-6Al-4V(Grade 5), combining high strength, excellent corrosion resistance, and biocompatibility, making it suitable for harsh environments. Manufacturing processes and applications include: production via forging, cold rolling, and hot rolling; testing methods include flaw detection and eddy current testing to ensure quality; primarily used in aerospace (e.g., engine components), medical devices (e.g., implants), chemical, petroleum, electronic diaphragm, and precision instruments, benefiting from its lightweight and durable properties.
Foil is an extremely thin sheet or strip material made of metal or alloy. Common materials include aluminum, copper, steel, titanium, and precious metals such as gold and silver. Thickness standards vary by country; China stipulates a maximum thickness of 0.20 mm for aluminum foil, which is usually measured by weight per unit area. Industrially rolled widths can reach 2 meters. This material is widely used in electronics, aerospace, and other fields: iron-nickel alloy foil is used in the cores of micro-transformers, titanium alloy foil in the thermal protection systems of space shuttles, and tungsten-molybdenum foil in the heating elements of electron tubes. Manufacturing processes are primarily rolling; aluminum foil can be rolled to 0.007 mm, while high-hardness metals require Sendzimir mills. Electrolytic deposition is used for copper foil production, and vacuum evaporation can prepare composite films.
Its composition belongs to a type of titanium alloy with a specific alloying element ratio. Titanium alloy foil exhibits excellent performance in high-temperature and high-strength conditions, making it suitable for the high-temperature and high-stress environments required for aerospace vehicles. It can also be used in aerospace electronic component coating materials, foldable mobile phone screens, and bipolar plates for hydrogen fuel cells. Grade 5 (Ti6Al4V) has a titanium content of no less than 90.5%, an aluminum content of approximately 6%, and a vanadium content of approximately 4%. It possesses high strength, good thermal stability, and corrosion resistance, and is widely used in aerospace, automotive engineering, and artificial joints. Grade 9 (Ti3Al2.5V) has a titanium content of no less than 89.5%, an aluminum content of approximately 3%, and a vanadium content of approximately 2.5%. It has good weldability and forgeability and is commonly used in the manufacture of ships, petrochemical equipment, bicycles, etc.
