Tantalum is widely used in aerospace, chemical, electronic, medical, metallurgical and other fields. The chemical symbol of tantalum is Ta, the atomic number is 73, and it belongs to transition metal. It is a light gray metal with a slight bluish tint, with a density of 16.50g.cm3, a hardness of 6~6.5, and a melting point of 2996 degree , ranking third after tungsten and rhenium. It is ductile and has better toughness than copper. It can be drawn into filaments and made into thin foils by cold processing; the expansion coefficient is very small. For every 1 degree increase, it only expands by 6.6 parts per million.
Ta1 chemical element composition content (%)
|
|
|
C |
|
|
|
N |
|
W |
|
H |
O |
|
0.005 |
0.01 |
0.005 |
0.002 |
0.01 |
0.005 |
0.002 |
0.01 |
0.05 |
0.0015 |
0.015 |
Ta2 chemical element composition content(%)
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|
|
C |
|
|
|
N |
|
W |
|
H |
O |
|
0.03 |
0.02 |
0.02 |
0.005 |
0.03 |
0.025 |
0.005 |
0.04 |
0.1 |
0.005 |
0.03 |
Tantalum alloy Ta1 conventional brand There are: Ta1, Ta2, R05200, R05400, Ta2.5w, Ta7.5w, Ta10w, etc., and the conventional implementation standards are: GB/T8182-2008, GB/T14841-2008ASTM B 365-98, etc. Tantalum alloy Ta2 conventional grades are: Ta2, R05200, R05400, etc. Conventional implementation standards are: ASTM B365-98, GB/T26012-2010, GB/T14841-2008, etc.
Tantalum has strong resistance to chemical corrosion and atmospheric corrosion below 150 degree . Tantalum is stable to other acids except hydrofluoric acid, fuming sulfur trioxide, and concentrated sulfuric acid and phosphoric acid at high temperatures. The stability of Ta-W alloy in acidic and neutral media at 200 degree is even higher than that of gold and platinum. Tantalum metal and tantalum alloys (such as Ta-2.5W, Ta-10W, Ta-40Nb, etc.) can withstand high temperatures and mineral acid (hydrochloric acid, sulfuric acid, nitric acid) corrosion better than any other material in corrosion resistance applications.
is located in Baoji High-tech Development Zone, Shaanxi Province. The company's main products include: tantalum, niobium, vanadium, tungsten, molybdenum, titanium, zirconium, nickel, cobalt, indium, hafnium, tin, chromium and their alloys, plates, strips, foils, rods, wires, tubes and other conventional processing profiles, as well as boats, crucibles, sputtering targets, coating targets, machined parts, high-temperature furnace insulation screens, heating elements, furnace bodies (heating furnaces, annealing furnaces), corrosion-resistant equipment and other deep-processing products.
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