Alumina Ceramic Beads

Made by special way,the density is higher Made by special material of 95% alumina,in this way,the heat treatment is better Precise Mold control so that the tolerance is strict Technical data Density 3.65-3.7g/cm3 Alumina content 95% Hardness(Mohs) 9 Rockwell hardness(HRA) over 75 Compression strength : 2000 MPa  Safety working temperatures : over 1500 Thermal Conductivity   23 W/mK Flexural Strength 340 Mpa Properties: High density, good apprearance and high alumina content, excellent thermal condictivity and heat transfer,  excellent insulating property  and higer surface finish and good unifomity ,resistance against thermal shock and mechanical abuse. Application:This special sintered alumina ceramic beads as components of ceramic pad and channel heaters can be used for pre and post-heaters welding applications,Welding process, stress-relieving, pre-heating & post heating, ship-building, other resistance-heating environment All flexible ceramic pad heaters are constructed of 80/20 Nickel/Chrome multi-strand wire, insulated with interlocking sintered alumina pink ceramic beads, nickel cold tail wire, and two Male Camlocks.