Customization: | Available |
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Classification: | Rare Metal |
Density: | 13.31g/cm3 |
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Mechanical properties of hot rolled and cold processed Hafnium Rod / Bar | ||||||
Grade | Status | Temperature/ºC | Tensile strength/MPa | Yield strength/MPa | Elongation/% | Standard |
R1 | annealed | room temperature | 448 | 172 | 22 | ASTM B737 |
316 | 275 | 110 | 32 | ASTM B737 | ||
R2 | annealed | room temperature | 517 | 241 | 20 | ASTM B737 |
316 | 310 | 138 | 30 | ASTM B737 |
Grades and chemical compositions of Hafnium Rod / Bar in hot rolling and cold processing | |||||||||||
Grade | Chemical composition (mass fraction)/%≤ | ||||||||||
Hf | Zr | Al | C | Cr | Cu | H | Fe | Mo | Ni | Nb | |
R1 | Balance | - | 0.010 | 0.015 | 0.010 | 0.010 | 0.0025 | 0.050 | 0.0020 | 0.0050 | 0.010 |
R3 | Balance | - | 0.050 | 0.025 | 0.050 | - | 0.0050 | 0.0750 | - | - | - |
Grade | Chemical composition (mass fraction)/%≤ | Standard | |||||||||
O | Si | Ti | Ta | Sn | W | U | V | N | |||
R1 | 0.040 | 0.010 | 0.010 | 0.020 | 0.0050 | 0.0150 | 0.0010 | 0.0050 | 0.010 | ASTM B737 | |
R3 | 0.130 | 0.050 | 0.050 | - | - | 0.0150 | - | - | 0.0150 | ASTM B737 |
[Hafnium bar ]Application:
widely used in coating processing industries
a: architectural glass, car using glass, graphic display field.
b:electronic and semiconductor field.
c:decoration and mould field.
d:optics coating materials
1, It is useful because it is easy to emit electrons (such as a filament used as an incandescent lamp). Used as a cathode of an X-ray tube, an alloy of tantalum and tungsten or molybdenum is used as an electrode of a high voltage discharge tube. Often used as a cathode and tungsten wire manufacturing industry for X-rays.
2, Pure tantalum has plasticity, easy processing, high temperature and corrosion resistance, and is an important material in the atomic energy industry. The thermal neutron capture cross section of the crucible is an ideal neutron absorber, which can be used as a control rod and protection device for the atomic reactor.
3, The Hafnium Element is also used in the latest intel45 nano processor. Due to the manufacturability of silicon dioxide (SiO2) and the reduced thickness to continuously improve transistor performance, processor manufacturers have used silicon dioxide as the material for the gate dielectric.
High Hard texture
Low impurity content
Better heat dissipation
High Tensile strength
[Hafnium bar ]Advantage:
Hafnium has high melting point and coexist with zirconium, used as cathode of X-ray tube. Hafnium tungsten or hafnium molybdenum alloy is used as electrodes of high-pressure discharge tube. Hafnium can be used as getter of many inflation systems. The hafnium getter can remove oxygen, nitrogen and other needless gases existing in the system. Hafnium is also used for nuclear reactor control rods.