Features:
1,Low thermal conductivity and capacity
2,High purity,low content of impurity
3,High thermal resistance and could contact fire directly
4,High strength and resistant to thermal shock
5,Accurate measurement and incised optionally
mullite brick-28
Index\trademark：JM28
Sort temperature ℃：1540
Bulk density g/cm3：0.90
Compressive strength in normal temperature Mpa：≥2.1
Folding strength in normal temperature Mpa： ≥1.8
Permanent linear variation 1510℃×24hr% ：≤-0.4
Coefficient of thermal expansion % ：0.80
AL2O3 % ：≥65
Fe2O3 % ：≤0.7