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Tungsten disulfide(WS2, 99.9%) (222618)
Details:

Functional characteristics:
● Tungsten disulfide(WS2) as a solid lubricant has outstanding characteristics in terms of physical properties.
● In recent years, the demand for new solid lubrication has increased with the increase in machine output, rotation speed, sliding speed, load, and use in harsh environments such as high temperature and vacuum. Environmental factors are also relevant here.

● Its oxidation temperature is about 100°C higher than that of molybdenum disulfide(MoS2).
● It has excellent heat resistance and extreme pressure performance, and has a lower coefficient of friction.
● It has a lower friction coefficient,which has a tendency to decrease as the load increases.
● It is also lubricating at a high temperature of 450°C, which helps prevent sintering or seizing.
● It is wear-resistant.
● In the air, it acts as a lubricant in the temperature range of -273°C to 450°C.
● It is inert, inorganic, non-toxic and non-corrosive, compatible with most oils and greases.
● Compared with graphite, MoS
2 and Teflon, surface deposits are reduced by half.

Test Items

Specifications

Composition content(wt.%)

W

74.06-74.16

Impurity content(≤wt.%)

Fe

0.0030

Cd

0.0020

Cu

0.0030

Mg

0.0020

Mo

0.0020

Pb

0.0020

Free S(≤wt.%)

0.0300

Moisture(≤wt.%)

0.100

D50(μm)

2.3-3.4, 8.0-11.0


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