Hafnium
MATERIAL OVERVIEW
Characteristics: Generally similar to zirconium. Good corrosion resistance and high strength.
Hazards: Keep fine turnings and powder completely dry, or very wet. If wet, the water content should be more than 25% by weight for maximum safety in handling. Severe explosions can result from ignition of hafnium powder or machining fines containing moisture in the concentration range of 5 to 10%. Overexposure to hafnium metal and hafnium compounds may cause mild irritation of the eyes, skin, and mucous membranes.
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GENERAL PROPERTIES
|
Symbol: |
Hf |
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Atomic Number: |
72 |
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Atomic Weight: |
178.49 |
|
Density: |
13.31 gm/cc |
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Melting Point: |
2227 oC |
|
Boiling Point: |
4602 oC |
|
Thermal Conductivity: |
0.230 W/cm/K @ 298.2 K |
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Electrical Resistivity: |
35.1 microhm-cm @ 25 oC |
|
Electronegativity: |
1.3 Paulings |
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Specific Heat: |
0.035 Cal/g/K @ 25 oC |
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Heat of Vaporization: |
155 K-Cal/gm atom at 4602 oC |
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Heat of Fusion: |
6.0 Cal/gm mole |
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Thermal Neutron Cross Section: |
115 Barns
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TYPICAL ANALYSES - Impurities in ppm
|
Material / Purity: |
3N (excl. Zr) |
| Al | <25 |
| C | 30 |
| Co | <5 |
| Cr | <30 |
| Cu | <20 |
| Fe | 170 |
| H | <3 |
| Mn | <20 |
| Mo | <10 |
| N | <20 |
| Nb | <50 |
| Ni | <25 |
| O | 260 |
| Pb | <5 |
| Si | 38 |
| Sn | <10 |
| Ta | <1 |
| Ti | <20 |
| U | <2 |
| V |
<10 |
| W | <20 |
| Zr | 2-3% |
HAFNIUM WIRE
|
Material |
Purity |
| Hafnium Wire .003" | 3N |
| Hafnium Wire .004" | 3N |
| Hafnium Wire .005" | 3N |
| Hafnium Wire .006" | 3N |
| Hafnium Wire .007" | 3N |
| Hafnium Wire .008" | 3N |
| Hafnium Wire .009" | 3N |
| Hafnium Wire .010" | 3N |
| Hafnium Wire .015" | 3N |
| Hafnium Wire .020" | 3N |
| Hafnium Wire .025" | 3N |
| Hafnium Wire .030" | 3N |
| Hafnium Wire .040" | 3N |
| Hafnium Wire .060" | 3N |
| Hafnium Wire .080" | 3N |
| Hafnium Wire .090" | 3N |
Wire is spooled to order and sold by the foot or meter. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional diameters or custom sizes.
HAFNIUM ROD
|
Material |
Purity |
| Hafnium Rod .0625” | 3N |
| Hafnium Rod .125” | 3N |
| Hafnium Rod .250” | 3N |
| Hafnium Rod .500” | 3N |
Rod is cut to order and sold by the inch or foot. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional diameters or custom sizes.
HAFNIUM FOIL
|
Material |
Purity |
| Hafnium Foil .001” | 3N |
| Hafnium Foil .002” | 3N |
| Hafnium Foil .003” | 3N |
| Hafnium Foil .004” | 3N |
| Hafnium Foil .005” | 3N |
| Hafnium Foil .006” | 3N |
| Hafnium Foil .007” | 3N |
| Hafnium Foil .008” | 3N |
| Hafnium Foil .009” | 3N |
Foil is cut to order and sold by the square inch or square foot. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional thicknesses or custom sizes.
HAFNIUM SHEET
|
Material |
Purity |
| Hafnium Sheet .010" | 3N |
| Hafnium Sheet .015" | 3N |
| Hafnium Sheet .020" | 3N |
| Hafnium Sheet .030" | 3N |
| Hafnium Sheet .040" | 3N |
| Hafnium Sheet .060" | 3N |
| Hafnium Sheet .125" | 3N |
| Hafnium Sheet .150" | 3N |
| Hafnium Sheet .250" | 3N |
Sheet is cut to order and sold by the square inch or square foot. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional thicknesses or custom sizes.
HAFNIUM SPUTTERING TARGETS
|
Material |
Purity |
| Hafnium Sputtering Target 2"D X .125"T | 3N |
| Hafnium Sputtering Target 2"D X .250"T | 3N |
| Hafnium Sputtering Target 3"D X .125"T | 3N |
| Hafnium Sputtering Target 3"D X .250"T | 3N |
| Hafnium Sputtering Target 4"D X .125"T | 3N |
| Hafnium Sputtering Target 4"D X .250"T | 3N |
Targets are made to order and packaged individually. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional diameters, thicknesses or custom sizes.
HAFNIUM POWDER, PELLETS, & INGOT
|
Material |
Purity |
Hafnium Machine Chips  |
3N |
| Hafnium Pellets .125"D X .125"L | 3N |
| Hafnium Pellets .250"D X .250"L | 3N |
| Hafnium Ingot | 3N |
| Hafnium Powder-100 Mesh | 3N |
| Hafnium Powder-325 Mesh | 3N |
Powder, pellets, and ingots are packaged to order and sold by the gram or kilogram. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional specifications or custom requirements.
HAFNIUM COMPOUNDS
|
Material |
Purity |
Hafnium Carbide HfC -325 Mesh  |
2N5 |
| Hafnium Oxide HfO2 -325 Mesh |
3N |
Compounds are packaged to order and sold by the gram or kilogram. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional specifications or custom requirements.
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ALLOYS 
