Crucible - graphite stands the heat.
More than 2,000 years ago, the Celts were already aware that graphite could be used to produce flame-proof ceramics. Due to its high resistance to oxidation, its excellent thermal conductivity as well as its chemically inert behaviour, “black gold” still plays an important role in the refractory industry to this day, both in magnesite bricks for furnace linings and in continuous casting gutters.
In addition, graphite is used as a coating for high-quality molten metal in order to prevent oxidation. We use large flake graphite with a well-pronounced crystal structure for producing refractory materials. These guarantee a long useful life as well as outstanding quality.
pencil - back to the roots.
The humble pencil was invented following the discovery of a graphite deposit in England. However, at the time, in around 1550, people thought that they had discovered lead ore. As the extracted material left a mark and slid pleasingly across surfaces, it was clamped between two wooden rods and the first pencil was created.
Indeed, people believed that pencils contained lead right up to the 18th century, until the chemist Karl Wilhelm Scheele proved that the supposed lead ore was in fact a quite different material: graphite. So contrary to popular belief, pencils are filled with graphite and not lead!