Tantalum Niobium Sheet
Product Tantalum Niobium Sheet (TaNb Sheet)
Part Number TRM-TA016
Standard ASTM B708 UNS R05240
Temper Annealed
Assay Tantalum- 40% Niobium

Tantalum niobium alloy typically refers to tantalum alloy with 40% niobium.  It has good high-temperature mechanical properties. TRM offers a wide variety of dimensions for the tantalum niobium alloy Sheet/Plate.

Thermostability 85%
Machinability 75%
Corrosion Resistance 88%
Inquiry

Assay

Element UNS R05240
O 0.020% max
C 0.010% max
N 0.010% max
H 0.0015% max
Fe 0.010% max
Ni  0.010% max
Si  0.005% max
Ti  0.010% max
Mo  0.020% max
W  0.050% max
Nb 35-42% max
Ta Remainder

Typical Size Available (Please inquire for details)

Thickness (In.) Width (In.) Length (In.)
Sheet 0.005-0.1875 1.18-27 1.18-78
Plate 0.1875 min. 2-40 2-118

Please refer to Tantalum Niobium Alloy Foil for smaller sizes.

Order Information

Please include the following information with your inquires and orders:
1. Quantity
2. Dimensions
3. R05240 or others on request.

Materials available for Tantalum and Tantalum Alloy Sheet

 R05400—Unalloyed tantalum, powdermetallurgy consolidation,

R05200—Unalloyed tantalum, vacuum melted,

R05252—Tantalum + 2.5% tungsten alloy, vacuum melted.

R05255—Tantalum + 10% tungsten alloy, vacuum melted.

R05240—Tantalum alloy, 60% tantalum, 40% columbium, electron-beam furnace or vacuum arc melt, or both.

Mechanical Properties for Tantalum Niobium Alloy Sheet

Mechanical Properties Thickness, in. Tensile strength, min, psi (MPa) Yield strength, min, psi (MPa) Elongation, min %
60% tantalum –40% niobium (R05240) <0.060 in. thick 35 000 (241) 20 000 (138) 25
≥0.060 in. thick 35 000 (241) 15 000 (103) 25