Our PWHT alumina ceramic beads is made by special material of 95% alumina,in this way,the heat treatment is better
Made by special way,the density is higher.Precise Mold control so that the tolerance is strict
Technical data
Density 3.65g/cm3
Alumina content 95%
Hardness(Mohs) 9
Rockwell hardness(HRA) over 75
Compression strength : 2000 MPa
Safety working temperatures : over 1500
Water Absorption rate : 0.01%
Thermal Conductivity 24 W/mK
Flexural Strength 340 Mpa
Properties: High density, good apprearance and high alumina content, excellent thermal
condictivity and heat transfer, resistance against thermal shock and mechanical abuse.
Normally it is for making the ceramic pad heater
