Tantalum Rod

Tantalum Rod (Tantalum Bar) is well-known mainly for its unmatched corrosion resistance and chemical inertness. Tantalum Rod (Tantalum Bar) is also extremely stable at high temperatures, since tantalum has a melting point around 3000°C. Tantalum is also one of the most bio-compatible metals available and is also radio-opaque due to its high density (16.68 g/cm3).

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Standard ASTM B365, ASTM F560
Material RO5200, RO5400, RO5252, RO5255
Shape Round, Square, Hex (A/F), Rectangle, Wire
Dimension range As per custom size
Surface Black, Pickling, Sand-blasting, Polished
State Annealed (M) or Non-Annealed(Y)
Third party inspection Acceptable

Tantalum Rod (Tantalum Bar) is well-known mainly for its unmatched corrosion resistance and chemical inertness. Tantalum Rod (Tantalum Bar) is also extremely stable at high temperatures, since tantalum has a melting point around 3000°C. Tantalum is also one of the most bio-compatible metals available and is also radio-opaque due to its high density (16.68 g/cm3).

Chemical Composition

Element C O N H Fe Mo Nb Ni Si Ti W
R05200 (%,Max) 0.01 0.015 0.01 0.0015 0.01 0.02 0.1 0.01 0.005 0.01 0.05
R05400 (%,Max) 0.01 0.03 0.01 0.0015 0.01 0.02 0.1 0.01 0.005 0.01 0.05

Tantalum Grades Guide:

R05200, unalloyed tantalum, electron-beam furnace or vacuum-arc melt, or both;

R05400, unalloyed tantalum, powder-metallurgy consolidation;

R05240, tantalum alloy, 60 % tantalum, 40 % niobium, electron-beam furnace or vacuum-arc melt;

R05252, tantalum alloy, 97.5 % tantalum, 2.5 % tungsten, electron-beam furnace or vacuum-arc melt, or both;

R05255, tantalum alloy, 90 % tantalum, 10 % tungsten, electron-beam furnace of vacuum-arc melt, or both.

Physical Properties:

Density 16.6 g/cc

Melting Point 3290 K, 2996°C, 5462°F

Boiling Point 5731 K, 6100°C, 9856°F

Coefficient of Thermal Expansion (20°C) 6.5 x 10(-6) / °C

Electrical Resistivity (20°C) 13.5 microhms-cm

Electrical Conductivity 13% IACS

Specific Heat  0.036 cal/g/°C

Thermal Conductivity .13 cal/cm(2)/cm°C/sec

Technology:

Tantalum Powder → Isocratic Pressing → Bar Billet →Sintering → Semi-finished bar →Forging → Swaging → Polished → End products → Inspection → Packing

Testing:

Corrosion test

Eddy Current test

Mechanical test

Microstructure test