Alumina ceramic beads for PWHT

alumina ceramic beads for PWHT is 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.