Hafnium

Hafnium, symbol Hf, atomic number 72, atomic weight 178.49, belongs to group IVB in the periodic table. Hafnium is a shiny silver-gray transition metal with a density of 13.31g/cm³ (20℃), a melting point of 2233 ℃ (2506 K, 4051 °F), and a boiling point of 4603 °C (4876 K, 8317 °F). The dense metal hafnium is inactive and reacts with air to form ...

Hafnium, symbol Hf, atomic number 72, atomic weight 178.49, belongs to group IVB in the periodic table. Hafnium is a shiny silver-gray transition metal with a density of 13.31g/cm³ (20℃), a melting point of 2233 ℃ (2506 K, 4051 °F), and a boiling point of 4603 °C (4876 K, 8317 °F). The dense metal hafnium is inactive and reacts with air to form an oxide coating. It is stable at room temperature, while powdered hafnium is easy to ignite spontaneously in the air. Hafnium does not react with dilute hydrochloric acid, dilute sulfuric acid, and strong alkaline solutions, but it is soluble in hydrofluoric acid and aqua regia. Hafnium is low in the earth's crust and often coexists with zirconium. Hafnium has the properties of high-temperature resistance, corrosion resistance, oxidation resistance, easy processing, rapid heat absorption, and heat release, and is used as atomic energy materials, alloy materials, high-temperature resistant materials, electronic materials, etc.

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Hafnium  There are 3 products.

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  • Inquiry

    Hafnium (Hf) Crystal Rods are produced by the iodination method and electron-beam smelting. The purity can be Hf+Zr≥99.99%, Zr≤0.2%/0.3%/0.5%, with low zirconium (200ppm, or 0.025%). Mainly used in the production of hafnium-based alloy materials. HM provides customized High Purity Hafnium Crystal Bars with the shortest lead time and the best price.

  • Inquiry

    Hafnium wire is drawn from high-purity metal hafnium. The main industrial application of hafnium wire is as a plasma emitter for plasma cutting machine electrodes. Heeger Materials (HM) provides customized Hafnium Wire with the shortest lead time and the best price.

  • Inquiry

    Spherical Hafnium Powder can be used in the field of powder metallurgy to make alloys with high-temperature resistance, corrosion resistance, and other special properties. Heeger Materials(HM) supplies high-quality Spherical Hafnium Powder at a competitive price.

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Hafnium is a metal element, symbol Hf, atomic number 72, atomic weight 178.49. The simple substance is a shiny silver-gray transition metal. There are 6 natural stable isotopes of hafnium. Hafnium does not interact with dilute hydrochloric acid, dilute sulfuric acid and strong alkaline solutions, but it is soluble in hydrofluoric acid and aqua regia. The element name is derived from the Latin name of the city of Copenhagen. Fractional crystallization of fluorine-containing complex salt can obtain pure hafnium salt, and reduction with sodium metal to obtain pure metal hafnium. The content of hafnium in the earth's crust is 0.00045%, and it is often associated with zirconium in nature.

Hafnium is useful because it emits electrons easily (for example, as the filament of an incandescent lamp). Used as the cathode of the X-ray tube, the alloy of hafnium and tungsten or molybdenum is used as the electrode of the high-voltage discharge tube. It is often used as the cathode of X-ray and tungsten wire manufacturing industry. Pure hafnium has plasticity, easy processing, high-temperature resistance and corrosion resistance, and is an important material in the atomic energy industry.