Industrial Insulation Custom BN Boron Nitride Ceramic Tube 

Industrial Insulation Custom BN Boron Nitride Ceramic Tube The specification of boron nitride ceramic tube Purity over 99% Max. dimensions available OD to be 300mm, length to be 400mm The grade of tolerance General tolerance:  1% of the dimensions, 0.01mm after grinding Surface treatment Lapping, fine grinding and polishing The main features of the boron nitride ceramic tube 1) BN is an easier machining advanced ceramic than the others, it can achieve the accuracy of 0.01mm; 2) The dielectric strength is 2300V/cm, which is 8 times that of Al2O3; RT resistivity at 1000ºC>10-7 Ω.cm; 3) Excellent thermal shock resistance, recover one hundred times from 20ºC to 1000ºC without damage; 4) For common metals (iron, copper, aluminum, lead, etc.…