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Xi'an Zhiyue Material Tech. Co., Ltd.
Xi'an Zhiyue Material Tech. Co., Ltd.

Chromium Diboride Powder (CrB2)

Chromium diboride powder is a high-performance inorganic compound with excellent physical and chemical properties. It has a high melting point, high hardness, good conductivity, and high temperature resistance, making it widely used in multiple fields. For example, it can be used as a steelmaking additive to improve the performance of steel; Excellent performance in corrosion resistance and thermal shock resistance, suitable for high-temperature oxidation coatings and neutron absorption coatings; At the same time, it is also used in high-tech fields such as superconducting magnets, power transmission lines, and sensitive magnetic field detectors. Overall, as a leading inorganic chemicals supplier, Zhiyue's chromium diboride powder plays an indispensable role in materials science and industrial production due to its excellent performance and wide range of applications.


Purity: ≥ 99.9% 

Particle size: -325 mesh

CAS: 12007-16-8

  • chromium diboride powder
  • chromium diboride powder

Product Specifications

  • Chemical Formula: CrB₂

  • CAS Number: 12007-16-8

  • Purity: ≥99.5%, 99.9% available

  • Particle Size Options: 1–5 µm, 5–10 µm,<325 mesh, nano grade on request

  • Appearance: Gray to black crystalline powder

  • Packaging: Vacuum-sealed aluminum foil bags or argon-filled containers

  • Production Method: Solid-state reaction / carbothermic synthesis



Key Benefits of Zhiyue’s Chromium Diboride Powder

FeatureTechnical Value

High Hardness (~28 GPa)

Excellent for surface protection, cermets, and tool coatings.

Exceptional Oxidation Resistance

Stable in oxidative atmospheres up to ~1300 °C—ideal for high-temp coatings.

Thermal & Electrical Conductivity

Enables multifunctional roles in thermal and electronic applications.

Phase Purity & Consistency

XRD-verified and batch-controlled for reliable performance in critical systems.



Application Fields for Chromium Diboride Powder

Chromium diboride powder is widely used in high-stress, high-temperature environments, particularly where oxidation, abrasion, and thermal load must be mitigated:

  • Thermal Spray & Hard Coatings
    CrB₂ serves as a base or additive material in HVOF or plasma-sprayed coatings for aerospace, turbine blades, and high-speed tools.

  • Reinforced Ceramic Composites
    Integrated with SiC, ZrO₂, or Al₂O₃ to improve fracture toughness, thermal resistance, and wear durability.

  • Sintered Components & Hot-Pressed Ceramics
    Used in UHTC systems for structural parts in reentry vehicles, nozzles, and combustion chambers.

  • Electrically Conductive Ceramics
    Suitable for electrochemical devices, crucibles, or electronic substrates requiring a balance of conductivity and corrosion resistance.


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