High temperature MgO powder GG-#8

MgO powder suit to working condition: 8W/cm squ surface loading (800 degree Centigrade)

GG-#8 is mainly used for stainless steel electric heating tubes(black oxide coating) through niatrogen treatment at the temperature of 1050 Ω with air as the heat transfer medium.To put the powder into the tube and anneal it at the temperature of 1050 Ω for 25 minutes, then the powder appears milky white.

steady electrical property :8W/cm2 surface loading (800 degree Centigrade)

Chemical Index :(%) Mgo:98  CaO 0.6      Fe2O3 0.3      Al2O3 0.2     SiO2  0.9

Physical Index :    Flow rate: ≤175 s/100g       tape density: 2.30±0.04 g/cm3

Electrical property:   Normal condition:  Insulation Resistance: ≥1000MΩ

                                                          Puncture Voltage:     ≥  2000 V

                              Working conidition : surface loading:  8W/cm2

                                                            Leakage current: ≤ 0.5MA

                                                            Insulation Resistance: ≥ 2 MΩ

                                                            Puncture Votage:   ≥1500 V

High temperature MgO powder GG-#8