High Purity Metal Specialists
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HAFNIUM (Hf)

 

GENERAL PROPERTIES

Symbol:

Hf

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/oK @ 298.2 oK

Electrical Resistivity:

35.1 microhm-cm @ 25 oC

Electronegativity:

1.3 Paulings

Specific Heat:

0.035 Cal/g/oK @ 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

MATERIAL OVERVIEW

Characteristics: Generally similar to zirconium. Gray crystals. Good corrosion resistance and high strength.

Hazards: Explosive in powder form, either dry or wet with less than 25% water. Tolerance, 0.5 mg/m3. Toxic by inhalation.  Compounds are also toxic.

 

Material Safety Data Sheet – MSDS

Hafnium MSDS

Technical Data Sheets

Understanding Mesh Sizes

TYPICAL ANALYSES

Impurities in ppm excl. Zirconium

Material / Purity:

2N8

3N

Al

310

25

B

-

<0.2

Cd

-

<1

Ca

-

15

Cl

100

165

Co

-

<5

Cr

-

<10

Cu

-

<40

Fe

-

65

Mg

570

<30

Mn

-

<30

Mo

-

<10

Na

-

<10

Si

-

<40

Ni

25

-

Si

25

-

Sn

-

<10

Ti

25

<20

U

28

-

V

-

<5

W

-

<10

WIRE

Material

Purity

Hafnium Wire .003” to .090”

2N8, 3N

Wire diameters are available in increments of .001”.
Wire is spooled to order and sold by the foot or meter.

ROD

Material

Purity

Hafnium Rod .0625”

2N8, 3N

Hafnium Rod .125”

2N8, 3N

Hafnium Rod .250”

2N8, 3N

Hafnium Rod .500”

2N8, 3N

Hafnium Rod .625”

2N8, 3N

Hafnium Rod .750”

2N8, 3N

Hafnium Rod 1”

2N8, 3N

Additional diameters can be drawn in 2-3 days.
Rod is cut to order and sold by the inch or foot.

FOIL

Material

Purity

Hafnium Foil .001”

2N8, 3N

Hafnium Foil .002”

2N8, 3N

Hafnium Foil .003”

2N8, 3N

Hafnium Foil .004”

2N8, 3N

Hafnium Foil .005”

2N8, 3N

Hafnium Foil .006”

2N8, 3N

Hafnium Foil .007”

2N8, 3N

Hafnium Foil .008”

2N8, 3N

Hafnium Foil .009”

2N8, 3N

Foil is cut to order and sold by the square inch or square foot.

SHEET

Material

Purity

Hafnium Sheet .010” to 0.5”

2N8, 3N

Sheet thicknesses are available in increments of .001”.
Sheet is cut to order and sold by the square inch or square foot.

SPUTTERING TARGETS

Material

Purity

Hafnium Sputtering Target  2"D X .125"T

2N8, 3N

Hafnium Sputtering Target 2"D X .250"T

2N8, 3N

Hafnium Sputtering Target  3"D X .125"T

2N8, 3N

Hafnium Sputtering Target 3"D X .250"T

2N8, 3N

Hafnium Sputtering Target 4"D X .125"T

2N8, 3N

Hafnium Sputtering Target 4"D X .250"T

2N8, 3N

Hafnium Sputtering Target 5"D X .125"T

2N8, 3N

Hafnium Sputtering Target 5"D X .250"T

2N8, 3N

Hafnium Sputtering Target 6"D X .125"T

2N8, 3N

Hafnium Sputtering Target 6"D X .250"T

2N8, 3N