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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.

Specififation

Product Name	Tantalum rod / bar
Shape	Round
Surface	polished or black
Standard	ASTM B 365
Purity	99.95min
Density	16.65 g / cc
Melting point	2996 degree
Boling point	5425 degree

Chemical Composition

grade	chemical composition %, max
	Fe	Si	Ni	W	Mo	Ti	Nb	O	C	H	N	Ta
Ta1 Ta2	0.005 0.005	0.005 0.005	0.005 0.005	0.005 0.005	0.002 0.002	0.002 0.002	0.005 0.1	0.02 0.03	0.004 0.1	0.002 0.002	0.005 0.01	remain remain

Mechanical Property

tantalum bar ( dia 3.18mm~63.5mm )
grade	ultimate tensile strength, min,pound / inch2 ( MPa )	yield strength, min, pound / inch2 (MPa)	elongation, min, % 1 inch (25.4mm), gauge length
R05400 R05200 R05252 R05255 R05240	25000 (172) 40000 (276) 70000 (482) 40000 (276)	15000 (103) 28000 (193) 55000 (379) 28000 (193)	25 20 20 25