Brand Specification	AlC75	AlC80	Zr94	Zr90
Al2O3    ≥ %	75	80	-	-
ZrO2     ≥     %	-	-	94	92
C    ≥   %	4	4	-	-
Apparent porosity  ≤	8	7	14	15
Bulk density  g/cm3   ≥	2.90	2.95	5.2	5.0
Compressive strength (MPa) ≥	60	60	80	80
High temperature bending strength (MPa) (1400*0.5h) MPa ; ≥	6	7	30	20