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Tungsten diboride (WB/WB2)

Tungsten boride (WB/WB2), silver-white octagonal crystal, relative density 10.77g/cm3, melting point about 2900℃. The most significant performance of tungsten boride is its high hardness. The Vickers hardness of WB or WB2 is about 20 GPa for crystals with a load exceeding 3 N, and about 30 GPa for WB4.
Molecular weight:205.47
Density:15.3 g/cm3
Colour:gray
Melting point:2365 °C
Formula: WB2
CAS NO.:12228-69-2
EINECS (EC NO.):235-445-1
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Tungsten diboride
Product Description
Tungsten boride (WB/WB2), silver-white octagonal crystal, relative density 10.77g/cm3, melting point about 2900℃. The most significant performance of tungsten boride is its high hardness. The Vickers hardness of WB or WB2 is about 20 GPa for crystals with a load exceeding 3 N, and about 30 GPa for WB4.
Tungsten boride has comprehensive properties such as high melting point, high hardness and chemical stability. It is not only an emerging superhard material, but also has high toughness, and is an important military bulletproof material.
Product Features
High purity: the highest purity can reach 99.99%, XRD detect no impurity phase.
Technical Specification
Model APS(D50) Purity(%) O(%) N(%) C(%) B(%)
WB 0001 -325mesh >99.9 ≤0.3 ≤0.05 ≤0.10 5.0~5.5
WB20001 -325mesh >99.9 ≤0.3 ≤0.05 ≤0.10 10.0~10.5
Customized chemical composition and particle size can be made according to customer requirements.
 
Element Max Typical Element Max Typical Element Max Typical
Al 0.0010 0.0005 Fe 0.0500 0.0300 P 0.0010 0.0005
As 0.0010 0.0005 K 0.0020 0.0010 Pb 0.0003 0.0001
Bi 0.0003 0.0001 Mg 0.0020 0.0010 S 0.0010 0.0005
Ca 0.0015 0.0006 Mn 0.0010 0.0005 Sb 0.0020 0.0010
Cd 0.0005 0.0001 V 0.0030 0.0015 Si 0.0050 0.0030
Co 0.0005 0.0001 Na 0.0020 0.0005 Sn 0.0003 0.0001
Ta 0.0050 0.0020 Ni 0.0050 0.0030 Ti 0.0050 0.0020
Cu 0.0003 0.0001 Nb 0.0030 0.0010 Cr 0.0050 0.0010
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