TANTALUM
Plate/Sheet/Foil
2 Products Properties:
—High melting point—2996℃
—High-density —16.6 g/cm3
—Excellent resistance to electrochemical corrosion,Chemical most stable below 150℃,
No reaction with HCl, HNO3 and aqua regia.
—High Ductility
—Low coefficient of thermal expansion
—Easy be machined in the room temperature
—Appearance:Grayish silver,bright and smooth
2 Chemical Composition:
Chemical composition % | |||||||||||||
Grade |
Chief component |
Impurities max |
|||||||||||
Ta |
Other |
Fe |
Si |
Ni |
W |
Mo |
Ti |
Nb |
O |
C |
H |
N |
|
Ta1 |
Remainder |
0.004 |
0.003 |
0.002 |
0.004 |
0.004 |
0.002 |
0.03 |
0.015 |
0.004 |
0.0015 |
0.002 |
|
Ta2.5W |
Remainder |
W2.0~3.5 |
0.01 |
0.005 |
0.005 |
— |
0.02 |
0.003 |
0.05 |
0.015 |
0.01 |
0.002 |
0.01 |
Ta10W |
Remainder |
W9.5~11 |
0.01 |
0.005 |
0.005 |
— |
0.02 |
0.003 |
0.05 |
0.015 |
0.01 |
0.002 |
0.01 |
TaNb3 |
Remainder |
Nb1.5~3.5 |
0.03 |
0.03 |
0.005 |
0.04 |
0.03 |
0.005 |
— |
0.03 |
0.02 |
||