Al2O3 Ceramic Heating Element Electric Insulator Steatite

Product Description Steatite ceramic parts   Steatite ceramic rods,poles,shafts,bars   Steatite is made of mineral talc (3Mgo 4Sio2 H2O) as the main raw material, adding appropriate amounts of clay, BaTi03 and other ingredients, and mixing and grinding, molding and high temperature sintering. Used for insulating parts.   Chemical component:SIO2: about 60%MgO:about 31%AL2O3:about 5%BaO:about 5%CaO:about 0.5%Fe2O3:about 0.2%Physical Properties* High electrical resistance* Low dielectric loss factor* Relatively high mechanical strength* High volume resistivity at elevated temperatures* Excellent dielectric strength* Low dissipation factorApplications* Insulating washers or bushings* Supports for heating elements* Electrical insulators* Stand-off insulators* Lighting insulators (supports, bases, etc.)* Spacers  Material data   PropertyMechanical performanceBulk densityHardnessFlexural strength 20CCompression strength 20CUnitG/cm3GpaMpaMpaData>2.7 1791150Thermal property Electrical performance Max using temperatureThermal shock resistance Coefficient of linear expansionDielectric hotlineElectrical penetration strength Volume resistivityC850-20Cx10-6m1MHZKV/mmKV/mm1300108