High Quality ASTM B776 high purity Hf hafnium plate / Sheet
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Chemical composition
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Zr
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Fe
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Mo
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Cr
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Al
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Ti
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Mn
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0.82
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0.004
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<0.001
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<0.001
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<0.0005
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<0.0006
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<0.0005
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Ni
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Cu
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Sn
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Sb
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W
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Pb
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Bi
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<0.0035
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<0.0005
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<0.0005
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<0.0005
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<0.0005
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<0.0005
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<0.0005
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Mg
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P
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Si
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N
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C
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H
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O
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<0.0005
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<0.001
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<0.002
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0.002
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0.003
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0.0004
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0.0069
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S
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Nb
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|
|
|
|
|
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0.002
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<0.0005
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|
|
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|
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Tolerance of thickness,width and length
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Thickness
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Thickness tolerance
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Width
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Width tolerance
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Length
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Length tolerance
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>0.05~0.07
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±0.007
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50~150
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±2.0
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100~1200
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±5.0
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>0.07~0.1
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±0.01
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50~200
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±2.0
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100~1200
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±5.0
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>0.1~0.13
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±0.025
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50~200
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±2.0
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100~1200
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±5.0
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>0.13~0.2
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±0.04
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50~200
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±2.0
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100~1200
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±5.0
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>0.2~0.4
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±0.05
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50~200
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±2.0
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100~1200±
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±5.0
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>0.4~0.65
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±0.08
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50~200
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±2.0
|
100~1200
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±5.0
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>0.65~1.0
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±0.1
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50~200
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±2.0
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100~1200
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±5.0
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Hafnium Uses and Applications
Electronic Materials
Since hafnium easily emits electrons, it can be used as the cathode of an X-ray tube. In addition, alloys of hafnium and tungsten or molybdenum are also used as electrodes for high-voltage discharge tubes.
Atomic energy industry
Metal hafnium has excellent welding performance, processing performance, high temperature resistance and corrosion resistance, so it has become an important material in the atomic energy industry. Hafnium has a large thermal neutron capture cross-section and is an ideal neutron absorber, which can be used as a control rod and protection device for an atomic reactor.
Chemical field
Hafnium is used as a getter in many gas-filled systems. Hafnium getters remove unwanted gases such as oxygen and nitrogen present in the system. In addition, hafnium has strong anti-volatility and is often used as an additive for hydraulic oil to prevent the volatilization of hydraulic oil during high-risk operations.
Alloy materials
Hafnium has the characteristics of ductility, oxidation resistance and high temperature resistance, and is also a good alloy material, which is applied to many alloys.
