Application of Tantalum Alloy in Chemical Industry
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℃, 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℃ increase, it only expands by 6.6 parts per million.
Ta1 chemical element composition content (%)
|
Ta |
Fe |
C |
Si |
Ni |
Mo |
N |
Ti |
W |
Nb |
H |
O |
| margin |
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(%)
|
Ta |
Fe |
C |
Si |
Ni |
Mo |
N |
Ti |
W |
Nb |
H |
O |
| margin |
0.03 |
0.02 |
0.02 |
0.005 |
0.03 |
0.025 |
0.005 |
0.04 |
0.1 |
0.005 |
0.03 |
Brand and implementation standard
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.
Corrosion resistance
Tantalum has strong resistance to chemical corrosion and atmospheric corrosion below 150℃. 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℃ 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.
Welding performance
Under appropriate conditions, welding can be performed by multiple welding methods such as argon arc welding, electron beam welding, laser welding, etc. If the welding process is proper, the weld structure is uniform and tight, but there are also some difficulties: Due to the thermal conductivity of tantalum alloys, heat is easily concentrated during welding, and heat input needs to be strictly controlled to avoid problems such as overheating leading to grain growth and embrittlement. Tantalum has a strong affinity for gas elements such as oxygen and nitrogen, and it is very easy to absorb these gases during welding, which affects the welding performance. Therefore, the purity of the welding environment is required to be very high. In addition, large residual stress and deformation may occur during welding, and appropriate measures need to be taken to control them.
Baoji Yusheng Metal Technology Co., Ltd. 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.
You are welcome to consult at any time, the contact information is as follows:
Sales Manager
Contact: Kelly
Our address
Wenquan village Industrial Zone, Gaoxin Development Zone, Baoji City, Shaanxi Province, China
Phone Number/Whatsapp
+86 13379388917
kd@tantalumysjs.com
