Differences in mechanical seal materials
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What is the difference between graphite and carbonized tungsten? How can one tell the difference using the right eye?
This post was last edited by Wang Genrong on 2018-2-28 at 21:15. Gently scratch the unsealed surface with a knife; graphite can easily develop scratches, while silicon carbide has such high hardness that it is difficult to create any significant scratches on it. --
What if we use just our eyes to distinguish? What trick do I have?
By feeling it with the hand, the density of silicon carbide is similar to that of copper, while carbon rings (graphite) are lighter than aluminum alloys. Look with your eyes – silicon carbide has a metallic luster.
Silicon carbide is gray, while graphite is black
It can’t be seen with the right eye; the left eye has to be used. . . . . Graphite is generally soft, while silicon carbide is hard; graphite is black in color and silicon carbide is shiny