Steatite ceramic

Steatite,for the lower sintering temperature and lower price of raw materials purchasing,the Steatite basically can intead of 95% alumina in a large various parts for its lower cost.And for their electrical properties being superior to the 95% alumina ,they are widely used in household electrical equipment industry. IndicatorsTest ConditionApplicationDensity g/cm³>2.7----lamps holderHydrostaticsPass----Anti-break Strength /Mpa>140-----Linear ExpansionCoefficient×10-6<820-10020-50020-800Dielectrical Constant<7.51MHz 2050010Hz 20Value Of Dielectric Loss Tangent×10-4<81MHz 2050010 Hz 20Volum ResistivityΩ.cm>1012100200500Breakdown Strength KV/mn>20D.C.Chemical Stability cm²---1:9Hcl 10%NaOH