Characteristics: 

It has the characteristics of ware resistance, thermal shock resistance, high temperature structural and high resistivity to alkalis.

Application:  

It mainly find its applications in blast furnace lining, the lining of alumina electrolytic bath and various nonferrous metal smelting, glass tank and ceramic in dustires, etc.

Specification:

Item	DKJL -1	DKJL-2
SiC ,  %      min	75	75
Si3N4 , %     min	20	22
Fe2O3 , %  max	----	0.5
Bulk Density ,  g/cm3	2.6-2.7	2.6-2.7
Apparent Porosity , %          max	17	16
Cold Crushing strength,  MPa     min	150	150
rupture strength under normal temperature, MPa  min rupture strength at 1200℃   min	30 40	45 50
Thermal Conductivity, w/m.k   min	15  (1000℃)	18  (800℃) 14  (1200℃)
thermal expansion coefficient, max	4.7x10-6/℃	4.7x10-6/℃