Hafnium Metal

Product Description
Hafnium
Symbol: Hf

Number: 72

lement category: Transition metal
CAS number: 7440-58-6
Standard atomic weight: 178,49
Density: 13,28 g/cm3
Hardness: 5,5
Melting point: 2233°C (4051.4°F)
Boiling point: 4603°C (8317.4°F)

About the element:
Hafnium and zirconium are two of the elements that are most similar to each other. Therefor they are hard to separate. The silvery, heavy hafnium so far is used only for a few special technical applications. Hafnium carbide HfC and tantalum hafnium carbide are very hard and mechanically enduring, the latter has with more than 4000°C the highest melting point of all materials.

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