The Materials You Need When You Need Them

Tantalum

Tantalum has good thermal conductivity, and is used is in the manufacture of heating elements, vacuum tubes and other high temperature parts.

Another major use of tantalum is for electronic components, and due to its absorption properties, tantalum is an excellent getter of residual gasses in evacuation tubes. Tantalum films provide very high capacitance per volume allowing miniaturization of electronics and circuitry. Tantalum capacitors are use in computers and cellular phones.

Tantalum is also famous for its resistance to corrosion by acids; in fact, below 150?C, Tantalum is almost completely immune to corrosion by aqua regia. Due to its resistance to attack by body fluids, Tantalum provides an excellent material for medical devices.

Tantalum Products

Ed Fagan Inc. stocks Tantalum Rod and Sheet in a variety of sizes. Below are some of the standard stock items. If you require other forms of Tantalum products, please call one of our materials experts; our sales people are very knowledgeable and can assist you. We can cut, slit, shear, or center less grind Tantalum to your exact specifications, and we also have tremendous versatility when it comes to custom sizes, packages, and unusual materials.

Tantalum Rod -- .010" - 2.0"

Tantalum Sheet -- .005" - .125"

Applications

Capacitors; surgical implants and instruments; ink jet nozzles. 

Tantalum Properties

 

Tantalum Physical Properties

Density

lb/in3

0.60

 

gm/cm3

16.60

Melting Point

°F

5425

 

°C

2996

Thermal Conductivity

Cal/cm2/cm°C/sec

0.13

Specific Heat

Cal/gm/°C

0.036

Coefficient of Linear Thermal Expansion

micro-in/°F x 10-6

6.50

 

micro-in/°C x 10-6

3.60

Electrical Resistivity

micro-ohm-cm

12.40


 

Tantalum Mechanical Properties

Tensile Strength

KSI (Mpa)-RT

250 (1725)

 

KSI (Mpa)-500°C

150 (1035)

 

KSI (Mpa)-1000°C

75 (515)

Elongation

% in 1.0".

--

Hardness

DPH

300

Modules of Elasticity

KSI

58000

 

Gpa

400


Tantalum Chemistry

Minimum % 99.99


 

Tantalum Specifications

AMS 7849

 

 

ED FAGAN INC. supplies the highest quality special purpose metals and alloys for Aerospace/Aviation, Defense, Electronics, Magnetic, Medical, Lighting, Optical, Telecommunications, Ceramics, Heat Treating, and other high-technology industries.

Refractory Metals and Alloys

Ed Fagan Inc. stocks a variety of refractory metals and alloys for a wide range of applications. EFI carries:
Molybdenum
Vacuum Furnace Molybdenum
TZM Molybdenum
Tungsten
Tungsten Alloy
Tantalum
Niobium
Rhenium

And we also have a large selection of other types of specialty metals and alloys for high technology applications, including:
Controlled Expansion Alloys
Electrical/Electronic Nickel
Soft Magnetic Alloys
Hard to Find Materials