Tungsten diboride (WB/WB2)

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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Product Description Product Features Technical Specification Related Products

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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