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Hafnium

  • Material

    Hf--01, Hf-1 (Pure hafnium)

    Hf-1, Hf-2 (Crystal hafnium)

  • Overview

    High purity hafnium, also known as crystalline hafnium, is a silver-gray metal crystal with a metallic luster. Hafnium is found in small amounts in the earth's crust and often coexists with zirconium. Hafnium has high temperature resistance, corrosion resistance, oxidation resistance, easy processing, rapid heat-absorbing and heat-releasing properties, and is used as atomic materials, alloy materials, high temperature resistant materials, electronic materials, etc.

  • Application

    (1) Electronic material

    Hafnium can be used as the cathode of X-ray tubes because of its tendency to emit electrons.

    (2) Atomic energy

    Hafnium metal has excellent welding performance, processing performance, high temperature resistance and corrosion resistance, thus becoming an important material in the atomic energy industry.

    (3) Chemical field

    Hafnium has a strong anti-volatilization, commonly used as an additive for hydraulic oil, to prevent the volatilization of hydraulic oil in high-risk operations.

    (4) Alloy material

    Hafnium has the properties of ductility, oxidation resistance and high temperature resistance, and is also a good alloy material.

  • Chemical Composition (wt%)

    Pure hafnium

    Material

    Hf

    Al

    C

    Cr

    Cu

    H

    Fe

    Mo

    Ni

    Nb

    Hf-01

    Bal.

    ≤0.01

    0.015

    0.010

    0.010

    0.0025

    0.050

    0.002

    0.005

    0.010

    Hf-1

    Bal.

    ≤0.05

    0.025

    0.050

    -

    0.0050

    0.075

    -

    -

    -


    Material

    N

    O

    Si

    W

    Sn

    Ti

    Ta

    U

    V

    Zr

    Hf-1

    0.010

    0.040

    0.010

    0.020

    0.005

    0.010

    0.015

    0.001

    0.005

    3.5

    Hf-2

    0.015

    0.130

    0.050

    -

    -

    0.050

    0.015

    -

    -

    3.5

  • Physical Property

    Density: 13.31g/cm3

    Melting point: 2230℃

  • Melting

    Electron-beam melting and VAR.

  • Available Process

    (1) Cold worked,recrystallization annealing

    (2) Cold worked,recrystallization annealing, polished (MP, EP etc.)

  • Tube Sizes

    OD:8.0 - 30.0mm

    WT: 0.15 - 4.0mm

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