Specialty graphites for the refractory industry

In addition to thermal stability and thermal shock resistance, our graphites also offer high impact strength, wear resistance, and mechanical strength as well as excellent corrosion resistance. Moreover, they feature low wettability and adhesion in contact with molten materials. Material properties like these make our graphite quick and easy to machine. Optimum design for molds and ovens in the glass industry.

We supply a broad range of extruded and vibration-molded specialty graphites for sheets and molds used in the production of melt-cast zirconium oxide refractory bricks. Even casting molds with complex geometries can be produced from our materials without problems. And our finished refractory bricks are of top quality – free of contaminants or surface imperfections. In addition, the casting molds produced from extruded and vibration-molded graphites can be reused several times, thanks to optimized oxidation properties.

In addition to our standard sizes, which we supply in lengths up to 3500 mm (138”), we also produce made-to-measure blocks tailored to the size requirements of our customers’ specific applications.

Extruded graphite		Vibration-molded graphite
SIGRAFINE HLM		SIGRAFINE MKUN
300 x 1220 x 1830 mm	610 x 760 x 1830 mm	610 x 720 x 2700 mm
500 x 500 x 1830 mm	610 x 760 x 2030 mm	630 x 1300 x 1420 mm
500 x 500 x 2750 mm	610 x 760 x 2540 mm
600 x 600 x 3300 mm