Tantalum Foil

Admat supplies coiled tantalum foil in a wide range of thicknesses and custom widths. Our strip is precision rolled, annealed and shipped on sturdy cores for safe shipment. Admat’s tantalum foils are produced to meet typical ASTM, AMS, or specific deep draw specifications, we also welcome customer developed specifications.

Admat offers both powder metallurgy derived and electron beam processed tantalum foil. The powder metallurgy grade tantalum foil is perfect for deep drawing and stamping applications. It ensures drawn parts have a smooth surface, free of cracks and pits. The isotropic properties of the tantalum foil help to avoid erratic can height or “earring”problems. When ordering this foil, specify “Powder Met Grade” or order to ASTM B708 RO5400. Electron beam melted tantalum foil is rolled down from melted ingots. For shallower draws and stamped parts, this grade of tantalum foil is ideal. If ordering this grade, request ASTM B708 RO5200.

No matter what your application, let our tantalum experts work with you to develop the proper material requirements for your application.

Available Alloys:

  • Tantalum 2.5% Tungsten
  • Tantalum 7.5% Tungsten
  • Tantalum 10% Tungsten
  • Furnace Grade Tantalum

Common Specifications

  • ASTM B708 R05200
    » Electron Beam Melted (unalloyed)
  • ASTM B708 R05400
    » Powder Metallurgy Grade (unalloyed)
  • ASTM B708 R05252
    » Tantalum 2.5% Tungsten Alloy
  • ASTM B708 R0255
    » Tantalum 10% Tungsten Alloy
  • AMS 7849 Rev E
    » Electron Beam Melted

Available Sizes
for Coiled Tantalum Strip & Foil

.002” to .003”
.004″ to .015″
.016″ to .020″
Maximum Width

Available Purities:
Commercial Grade ( ASTM )

  • 3N 99.900% | 3N5 99.950%
  • 4N 99.990% | 4N5 99.995%
  • 5N 99.999%