The thickness of tantalum sheets can vary depending on the specific application and the requirements of the end user. Tantalum sheets are available in a range of thicknesses to accommodate different uses and manufacturing processes. Common thicknesses for tantalum sheets can range from as thin as 0.1 millimeters (mm) to several millimeters, depending on the specific application and the desired properties of the material.

For example, in electronic applications such as capacitor manufacturing, tantalum sheets may be produced in very thin thicknesses to facilitate the formation of thin, high-capacitance layers. In contrast, for applications requiring structural strength or corrosion resistance, thicker tantalum sheets may be used to provide the necessary mechanical properties and durability.

The selection of the appropriate thickness for a tantalum sheet is based on factors such as the intended use, the mechanical and chemical requirements of the application, and the specific manufacturing processes involved. It's important to consult with suppliers or manufacturers to determine the availability of tantalum sheets in the desired thickness and to ensure that the material meets the required specifications for the intended application.