 |
New
Products |
|
| |
|
|
|
|
|
| |
Tantalum and Ta-Alloys |
|
| |
|
|
|
|
|
| |
Marketech's Metal Tech Group
provides refractory metals, composites
and special alloys for aerospace,
oilfield, industrial, electronic, medical, and defense
applications. We provide finished components, bar stock, sheet,
tubes, wire, and rods of a wide range of compositions. For large
production, we offer MIM, metal injection molding. |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
|
|
|
| |
Tantalum and Ta-Alloys |
|
|
| |
|
|
|
|
|
| |
 |
 |
|
|
| |
Tantalum Tubes |
Tantalum Sheets, Plates, Rods, Bars |
|
|
| |
|
|
|
|
|
| |
Tantalum is a strong,
ductile metal that is nearly immune to chemical attack at room
temperatures. It can be drawn into a fine wire that is used to
evaporate metals, such as aluminum. It has a high melting point
and is frequently used as a substitute for platinum, which is
more expensive. Tantalum is used to make components for chemical
plants, nuclear power plants, airplanes and missiles. Tantalum
does not react with bodily fluids and is used to make surgical
equipment. Tantalum also does not irritate the body and is used
to make surgical sutures as well as implants, such as artificial
joints and cranial plates. Tantalum is alloyed with steel to
increase steel's ductility, strength and melting point. |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
|
|
|
|
| |
About
Tantalum |
|
|
| |
|
| |
|
|
|
|
| |
|
|
Tantalum is an element found in many
ways in our everyday lives, improving technology and
material performance. Its many applications include uses
in electronics, medicine, engineering and energy
generation. |
|
| |
| |
|
|
|
Tantalum was discovered by Anders Gustaf
Ekenberg, a Swedish chemist, in 1802 in minerals
obtained from Ytterby, Sweden. Many scientists believed
that he had only discovered an allotrope of niobium, an
element that is chemically similar to
tantalum. The issue was finally settled
in 1866 when, Jean Charles Galissard de Marignac, a
Swiss chemist, proved that
tantalum and niobium were two distinct
elements. The first relatively pure samples of
tantalum were first produced in 1907.
Today,
tantalum is primarily obtained
from the minerals columbite ((Fe, Mn, Mg)(Nb, Ta)2O6),
tantalite ((Fe, Mn)(Ta, Nb)2O6) and euxenite ((Y, Ca, Er,
La, Ce, U, Th)(Nb, Ta, Ti)2O6). |
|
|
|
|
|
 |
About half of the
tantalum consumed each year is used in
the electronics industry, mainly as powder and wire for
capacitors, owing to
tantalum's particular ability to store
and release electrical energy. This allows components to
be exceptionally small and they are therefore favored in
space-sensitive high-end applications in
telecommunications, data storage and implantable
medical devices.
Tantalum is also used for electronic
sound filters and as a barrier against copper diffusion
in semi-conductors.
Tantalum carbide's hardness makes it
ideal for cutting tools. |
| |
|
|
|
Tables and Properties |
|
|
|
| |
High Quality Tantalum Metal (wt%) |
|
| |
|
|
|
|
|
| |
Impurities (max.) |
|
| |
Type |
Nb |
C |
O |
N |
Fe |
Ni |
W |
Mo |
Si |
Ti |
|
| |
Ta-1 |
0.01 |
0.02 |
0.20 |
0.01 |
0.01 |
0.005 |
0.003 |
0.003 |
0.02 |
0.003 |
|
| |
Ta-2 |
0.02 |
0.04 |
0.30 |
0.02 |
0.02 |
0.01 |
0.005 |
0.003 |
0.02 |
0.003 |
|
| |
FTa-1 |
0.05 |
0.03 |
0.03 |
0.02 |
0.01 |
0.005 |
0.02 |
0.02 |
0.02 |
0.005 |
|
| |
FTa-2 |
0.10 |
0.05 |
0.035 |
0.03 |
0.03 |
0.01 |
0.03 |
0.03 |
0.03 |
0.01 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
Typical Composition of Ta-Alloys
(wt %) |
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
Type |
Ta |
W |
Nb |
|
|
|
|
|
| |
|
|
R05252 |
97.5 |
2.5 |
- |
|
|
|
|
|
| |
|
|
R05255 |
90 |
10 |
- |
|
|
|
|
|
| |
|
|
R05240 |
60 |
- |
40 |
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
Typical Specification |
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
Type |
Dimension (mm) |
Perform Standard |
|
|
| |
|
Ta1, Ta2, FTa-1, FTa-2, R05255 R05252 R05240 |
Sheet, Plate |
Thickness: 0.01-10 Width max: 1000 Length on
required |
ASTM B 708-98 |
|
|
| |
|
Rod, Bar |
Diameter: Φ3.0-Φ110 Length on required |
ASTM B 365-98 |
|
|
| |
|
Tube |
Outside Diameter: Φ0.5-Φ30 Wall Thickness:
0.20-5.00 Length on required |
ASTM B 521-92 |
|
|
| |
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
| |
|
CONTACT US for more product information and
pricing. |
|
|
|
|
|
|
