Tantalum Foil

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Edgetech Industries LLC provides high purity tantalum foil to universities, research labs, and manufacturing companies. Tantalum and its alloys products are also available in form of sheet, plate, wire, rod, ribbon, pellets, powder, sputtering targets, discs.

Tantalum metal is part of the refractory metals group, which are widely used as minor components in alloys. Tantalum is a chemical element with the symbol Ta and atomic number 73. Ta is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. Also, it is highly ductile at high temperatures. They have excellent thermal and electrical conductor properties.  The melting point of 2,996°C of Ta, is the fourth highest of all metals. The chemical inertness of tantalum makes it a valuable substance for laboratory equipment and a substitute for platinum. Its main use today is in tantalum capacitors and in electronic equipment. Such as mobile phones, DVD players, video game systems, and computers.

We provide Tantalum foil with following dimensions and specifications:
Specification: ASTM B708
Material: R05200, R05400, TaNb3, TaNb20, Ta2.5W (R05252)
Size: 0.01-0.09mm Thick x 30-150mm width x L, in roll
Surface: Cold rolling

Chemical composition for each grade of tantalum material

Chemical Composition (%)
Grade Main Content Impurities (≤%)
Ta Nb/W Fe Si Ni W Mo Ti O
R05200 Bal —— 0.005 0.005 0.002 0.01 0.01 0.002 0.015
R05400 Bal —— 0.03 0.02 0.005 0.04 0.005 0.1 0.02
TaNb3 Bal <3.5 0.03 0.03 0.005 0.04 0.03 0.005 0.02
TaNb20 Bal 17~23 0.03 0.03 0.005 0.04 0.03 0.005 0.02
Ta2.5W Bal 2.0~3.0 0.005 0.005 0.002 3.0 0.01 0.002 0.015
Ta10W Bal 9~11 0.005 0.005 0.002 11 0.01 0.002 0.015
Other details per customer’s request. (N,C≤0.01%, H≤0.0015%)
Ta-10W alloy foil is not available cause of its high hardness.

Mechanical properties for tantalum rolling products

Grade and size Annealed
Tensile strength
Min, psi (MPa)
Yield strength min,
psi (MPa)(2%)
Elongation min, %
Pure Tantalum foil, sheet, and plate (R05200, R05400)
Thickness<0.060″ 30000 (207) 20000 (138) 20
Thickness≥0.060″ 25000 (172) 15000 (103) 30
Ta-10W (R05255) Tantalum tungsten alloy sheet and plate
Thickness<0.125″ 70000 (482) 60000 (414) 15
Thickness≥0.125″ 70000 (482) 55000 (379) 20
Ta-2.5W (R05252) Tantalum tungsten alloy sheet and plate
Thickness<0.125″ 40000 (276) 30000 (207) 20
Thickness≥0.125″ 40000 (276) 22000 (152) 25
Ta-40Nb (R05240) Tantalum niobium alloy sheet and plate
Thickness<0.060″ 40000 (276) 20000 (138) 25
Thickness>0.060″ 35000 (241) 15000 (103) 25

We can also provide custom tantalum foil and other tantalum parts, please send us your request to sales@edgetechmat.com for any needs on tantalum rolling products.

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