Titanium Foils

An Introduction to Precision Titanium Foils 2025

Titanium foil is an ultra-thin sheet of high-purity titanium, produced through a precision cold-rolling and annealing process. It embodies all the hallmark properties of titanium—exceptional strength, low density, and outstanding corrosion resistance—in a flexible and formable sheet. This unique combination makes titanium foil an indispensable material in advanced technology sectors.

It serves as a critical barrier, a sensitive diaphragm, or a lightweight structural skin in applications where performance, precision, and reliability are absolute priorities. From protecting sensitive electronics in medical implants to forming the backbone of lightweight aerospace components, titanium foil provides a high-performance solution in a minimal profile.

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Available Dimensions & Specifications

We supply high-quality titanium foil in various thicknesses and sizes, delivered in coils or as custom-cut sheets to meet your exact project requirements.

• Thickness Range: 0.01 mm to 0.9 mm (0.0004” to 0.035”)
• Width: Standard widths up to 600 mm (23.6”), with custom slitting available.
• Form: Supplied in coils or as custom cut-to-size sheets.
• Condition: Typically supplied in the annealed (soft) condition for maximum formability, with a bright, clean surface finish.

For specific thicknesses, widths, or tempers, please contact our technical support team.

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Common Titanium Foil Grades

The grade of titanium foil is chosen based on the required balance of formability, strength, and corrosion resistance. Below are the most common grades available.

Grade	Common Name(s)	Key Characteristics & Features	Typical Foil Applications
Grade 1	CP Ti Grade 1	Highest ductility and best formability. Excellent corrosion resistance. Ideal for deep drawing and complex shapes.	Chemical processing vessel linings, burst discs, architectural panels, heat exchanger plates.
Grade 2	CP Ti Grade 2	The most widely used “workhorse” grade. A great balance of moderate strength, formability, and weldability.	Aerospace shims, general industrial parts, casings, and low-stress structural components.
Grade 5	Ti-6Al-4V	The primary high-strength titanium alloy. Much stronger than CP grades but less formable.	High-performance diaphragms, aerospace honeycomb structures, high-fidelity speaker domes, high-stress springs.
Grade 7	Ti-0.2Pd	Mechanically similar to Grade 2 but with superior corrosion resistance, especially against crevice corrosion in chlorides.	Diaphragms for aggressive chemical pumps, anode/cathode components, and specialized marine equipment.

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Example Applications of Titanium Foils

The specialized properties of titanium foil make it essential for a wide range of cutting-edge applications.

Aerospace & Defense

• Honeycomb Structures: Used as the skin for lightweight, high-strength sandwich panels for airframes and satellites.
• Heat Shields: Its low thermal conductivity and high-temperature resistance make it ideal for protecting components from heat.
• Shims and Spacers: Provides precise, corrosion-proof spacing in critical assemblies.

Medical & Healthcare

• Casings for Implantable Devices: Used to hermetically seal pacemakers, defibrillators, and drug pumps due to its excellent biocompatibility and non-magnetic nature.
• Surgical Instruments: Used in components for specialized, lightweight surgical tools.
• Cryogenic-Electron Microscopy (Cryo-EM): Fine titanium foil grids are used in sample preparation for advanced biological imaging.

Chemical Processing & Energy

• Burst Discs (Rupture Discs): Acts as a reliable pressure-relief safety device in chemical reactors and storage tanks.
• Vessel Linings: A thin layer of titanium foil can protect steel vessels from highly corrosive chemicals, extending their service life.
• Fuel Cell Components: Used for bipolar plates and catalyst supports due to its corrosion resistance and electrical conductivity.

Electronics & Audio

• High-Fidelity Speaker Domes: The exceptional stiffness-to-mass ratio of titanium foil allows for the creation of tweeters and headphone drivers that produce incredibly clear, accurate sound with minimal distortion.
• Microphone Diaphragms: Its low mass and high sensitivity are ideal for capturing sound with high fidelity.
• Shielding for Electronics: Protects sensitive electronic components from electromagnetic interference (EMI).