Tantalum balls are used in electronic components, chemical equipment,
and nuclear reactors. Other applications concerned with corrosion,
especially the chemical processing industry, use tantalum to
fabricate valves for corrosive liquids.
Tantalum Balls Standard state: solid
at 298 K
Tantalum Balls Color: grey blue
Tantalum Balls Classification: Metallic
Description of tantalum balls:
Tantalum is a greyish silver, heavy, and very hard
metal. When pure, it is ductile and can be drawn into fine wire,
which can be used as a filament for evaporating metals such
as aluminium. Tantalum is almost completely immune to chemical
attack at temperatures below 150°C, and is attacked only
by hydrofluoric acid, acidic solutions containing the fluoride
ion, and free sulphur trioxide. The element has a melting point
exceeded only by tungsten and rhenium.
Principal Design Features of Tantalum Balls:
Tantalum is a refractory metal, falling between tungsten and
molybdenum in terms of melting point (5425 F). It is widely
available in EB cast and powder metallurgy mill forms an it
applications fall into two major categories: electronic and
metallurgical. Excellent additional data available at http://www.rembar.com/tant.htm.
Tantalum Ball Applications:
Applications for tantalum fall into two major categories:
electronic and metallurgical. The electronics industry is the
largest single user, where it is employed in capacitors, filaments
and various other high temperature components. The chemical
process equipment industry commonly employs tantalum in heat
exchangers, heaters, vessels, etc.
Tantalum Ball Machinability:
Tantalum has a tendency to gall, very similar to pure
copper. This can cause welding of tooling to the workpiece if
proper procedures are not followed. Heavy roughing cuts with
M2 high speed or C2 carbide tooling is recommended. To minimize
galling, high speed tooling with generous lubricant flooding
is recommended. Speeds of 40-60 fpm are recommended.
Tantalum Ball Welding:
Welding Tantalum can be fusion and resistance welded successfully.
Resistance welding should be performed under water. Fusion welding
is most successful when the material to be joined is absolutely
Tantalum Ball Heat Treatment:
Tantalum is not heat treatable.
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