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Zirconium Diboride (ZrB₂)

Zirconium Diboride (ZrB₂), or zirconium diboride, is a hard, gray powder that melts at 3246°C and is classified as an ultra-high temperature ceramic (UHTC). It has a relatively low density of ~6.09 g/cm3 (dependent on hafnium impurity), good high-temperature strength and hardness, relatively high thermal and electrical conductivities, and strong neutron control ability. ZrB₂ is toxic.
Typical Chemical Analysis

B= 19.20%
Zr+Hf = 80.80%

Typical Applications

Zirconium Boride (ZrB₂) is used with high-temperature aerospace applications such as hypersonic flight or rocket propulsion systems. ZrB₂ has uses as special refractory materials and is used in high-temperature thermocouple protection sleeves, casting molds, and metallurgical metal crucibles. It also can be used as nuclear control materials.

Packaging Options

Steel Drums


Zirconium Boride (ZrB₂) TSCA (SARA Title III) Status: Listed
For further information, please call the EPA, Office of Chemical Safety and Pollution Prevention (OCSPP) at 202-564-2902
Zirconium Boride (ZrB₂)) CAS Number: 12045-64-6
Suspected Cancer Agent:
ACGIH TLV-A4 (Not Classifiable as a Human Carcinogen);
IARC-3 (Unclassifiable as to Carcinogenicity in Humans)

Sustainable Qualities

Zirconium Diboride is considered sustainable due to its high durability, high-temperature resistance, and excellent corrosion resistance properties. This material is used in various applications, including coatings, cutting tools, and refractory materials. It also contributes to a circular economy because it can be recycled and used in the production of new products, reducing waste and promoting a more sustainable manufacturing process.

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  • -325 Mesh
  • 4-7 Microns Average Powder
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