ASTM B776 99.95% Non Ferrous Alloys Hafnium Plate Grade R1 For Nuclear Applications
Hafnium Plate Purity 99.95% ASTM B776 Thickness 3mm, 5mm Hot Rolling
ASTM B776 Standard covers two grades of wrought hafnium and hafnium alloy strip, sheet, and plate as follows:
Grade R1 for nuclear applications, and Grade R3 for commercial applications.
- Description
Hafnium Plate
Grade
Hf+Zr;99.95%; Zr<2%
Diameter0.125 to 4nch (3mm to 101.6mm).
| Symbol: | Hafnium plate |
| Atomic Number: | 72 |
| Atomic Weight: | 178.49 |
| Density: | 13.31 gm/cc |
| Melting Point: | 2227 oC |
| Boiling Point: | 4602 oC |
| Thermal Conductivity: | 0.230 W/cm/K @ 298.2 K |
| Electrical Resistivity: | 35.1 microhm-cm @ 25 oC |
| Electronegativity: | 1.3 Paulings |
| Specific Heat: | 0.035 Cal/g/K @ 25 oC |
| Heat of Vaporization: | 155 K-Cal/gm atom at 4602 oC |
| Heat of Fusion: | 6.0 Cal/gm mole |
| Thermal Neutron Cross Section: | 115 Barns |
Hafnium alloy, and can be used for rocket nozzles aircraft gliding reentry leading edge protective layer, Hf-Ta alloy tool steel and can be fabricated of resistive material. In heat resistant alloy of hafnium is used as add elements, such as tungsten, molybdenum, tantalum alloys Some of hafnium increases. Because of the high melting point and hardness HfC, increasing agent can be used as carbide. 4TaC HfC a melting point of about 4215 ℃, the highest known melting point of the compound.
Related
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Hafnium Wire
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Hafnium Bar
Hafnium Plate , Rod , Wire , Pellets , Cylinder can be used as evaporation material, sputtering target .
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