We provide machine parts made from extruded graphite for furnaces and other high-temperature applications. We know that it is slightly lower in strength than ISO Graphite but Extruded Grades are nonetheless ideally suited for many applications including furnace heating elements, fixtures and furniture, susceptors, moulds, crucibles, and sintering trays & boats. See more product details here- https://thermic-edge.de/en/home/vacuum-products/graphite-crucibles/