Features:

The sillimanite brick is made of sillimanite minerals.After high temperature calcination,it become mullite and

dissociate silicon dioxide.Generally use high-temperature firing method and slurry casting method to produce.

1.Good thermal stability.

2.Strong resistance to chemical attack.

3.It is the first choice of stable material for glass forming.

Reference Index:

 Al2O3:above 60%

SiO2:37%

Fe2O3:1%

Refractoriness:1790 celsius degree

Cold crushing strength:above 50Mpa

0.2Mpa Refractoriness under load:1450-1510 celsius degree

Apparent porosity:below 25%

Bulk density:2.2-2.4g/cm3

Regeating linear change 1400x2h:+0.15

                                                  -0.5