|
TANTALUM
(Ta)
MATERIAL
OVERVIEW
Characteristics:
(a) Black powder (b) Steel-blue-colored metal when
unpolished, nearly platinum-white color when polished.
Soluble in fused alkalies, insoluble in acids except
hydrofluoric and fuming sulfuric acids. Tensile
strength of drawn wire may be as high as 130,000 psi.
Refractive index 2.05.
Hazards:
Dust or powder may be flammable. Moderately toxic by
inhalation. Tolerance: 5 mg/m3
of
air.
GENERAL
PROPERTIES
|
Symbol:
|
Ta
|
|
Atomic
Number:
|
73
|
|
Atomic
Weight:
|
180.9479
|
|
Density:
|
16.654
gm/cc
|
|
Melting
Point:
|
2996
oC
|
|
Boiling
Point:
|
5425
oC
|
|
Thermal
Conductivity:
|
0.575
W/cm/oK
@ 298.2 oK
|
|
Electrical
Resistivity:
|
12.45
microhm-cm @ 0 oC
|
|
Electronegativity:
|
1.5
Paulings
|
|
Specific
Heat:
|
0.0334
Cal/g/oK
@ 25 oC
|
|
Heat
of Vaporization:
|
180
K-Cal/gm atom at 5425 oC
|
|
Heat
of Fusion:
|
7.5
Cal/gm mole
|
TYPICAL
ANALYSES
Impurities
in ppm
|
Material
/ Purity:
|
3N
|
3N8
|
|
Cr
|
10
|
10
|
|
Nb
|
100
|
10
|
|
Si
|
100
|
10
|
|
W
|
125
|
40
|
|
Zr
|
-
|
10
|
|
Mo
|
-
|
10
|
|
Mg
|
-
|
10
|
|
Sn
|
-
|
10
|
|
Fe
|
100
|
15
|
|
Ni
|
100
|
15
|
|
Ti
|
<50
|
10
|
|
V
|
-
|
10
|
|
Cu
|
-
|
10
|
|
Mn
|
-
|
10
|
|
Al
|
-
|
10
|
|
Co
|
-
|
10
|
TANTALUM
WIRE
|
Material
|
Purity
|
|
Tantalum
Wire .001” to .090”
|
3N8
|
Wire
is spooled to order and sold by the foot or meter.
TANTALUM
ROD
|
Material
|
Purity
|
|
Tantalum
Rod .0625”
|
3N8
|
|
Tantalum
Rod .125”
|
3N8
|
|
Tantalum
Rod .250”
|
3N8
|
|
Tantalum
Rod .500”
|
3N8
|
|
Tantalum
Rod .625”
|
3N8
|
|
Tantalum
Rod .750”
|
3N8
|
|
Tantalum
Rod 1”
|
3N8
|
Rod
is cut to order and sold by the inch or foot.
TANTALUM
FOIL
|
Material
|
Purity
|
|
Tantalum
Foil .001”
|
3N8
|
|
Tantalum
Foil .002”
|
3N8
|
|
Tantalum
Foil .003”
|
3N8
|
|
Tantalum
Foil .004”
|
3N8
|
|
Tantalum
Foil .005”
|
3N8
|
|
Tantalum
Foil .006”
|
3N8
|
|
Tantalum
Foil .007”
|
3N8
|
|
Tantalum
Foil .008”
|
3N8
|
|
Tantalum
Foil .009”
|
3N8
|
Foil
is cut to order and sold by the square inch or square
foot.
TANTALUM
SHEET
|
Material
|
Purity
|
|
Tantalum
Sheet .010” to 1”
|
3N8
|
Sheet
is cut to order and sold by the square inch or square
foot.
TANTALUM
SPUTTERING TARGETS
|
Material
|
Purity
|
|
Tantalum
Sputtering Target 2"D X .125"T
|
3N8
|
|
Tantalum
Sputtering Target 2"D X .250"T
|
3N8
|
|
Tantalum
Sputtering Target 3"D X .125"T
|
3N8
|
|
Tantalum
Sputtering Target 3"D X .250"T
|
3N8
|
|
Tantalum
Sputtering Target 4"D X .125"T
|
3N8
|
|
Tantalum
Sputtering Target 4"D X .250"T
|
3N8
|
Additional
sizes available upon request.
TANTALUM
POWDER, SHOT, PELLETS, & INGOT
|
Material
|
Purity
|
|
Tantalum
Shot .125"
|
3N8
|
|
Tantalum
Pellets .125"D
X .125"L 
|
3N8
|
|
Tantalum
Pellets .250"D X .250"L
|
3N8
|
|
Tantalum
Powder-100 Mesh
|
3N8
|
|
Tantalum
Powder-325 Mesh
|
3N8
|
Powde | 
