Submerged Entry Nozzle
	Al2O3	SiO2	C+SiC	ZrO2	Apparent porosity	Bulk density	C.C.S	M.O.R
	(% minm)	(% max)	(% minm)	(% minm)	(% max)	(gm./cc minm)	(MPa minm)	(MPa minm)
Body	50	6	25	3	18	2.45	25	6
Slag line			13	75	19	3.6	20	5
Body	40	15	25		18	2.3	25	6
Slag line			15	70	20	3.4	20	5