Item Properties	Al2O3% ≥	Fe2O3% ≥	Zr2O% ≥	Refractory °C ≥	Apparent Porosity% ≥	Bulk density g/cm3 ≥	Cold crushing strength Mpa ≥	Refractoriiness under load 0.2MPa °C≥	Permanent linear change%	Thermal shock Resistance(water cycle) 1100°C≥
HIGH-ALUMINA BRICK FOR ELECTRICAL ARCH FURNACE
FR-80	80			1790	19		78.5	1530	0-0.3
FR-75	75			1790	19		68.6	1530	0-0.4
HIGH-ALUMINA BRICK FOR BLAST FURNACE
FR-65	65	2.0		1790	19		58.8	1500	0-0.2
FR-55	55	2.0			19		49.0	1480	0-0.2
FR-48	48	2.0			18		49.0	1450	(1450°C×2h))0-0.2
THERMAL SHOCK RESISTANCE HIGH-ALUMINA BRICKS
FRLZ-75	75		5-7		23	2.6	50	1500		20
FRLZ-70	70		5-7		25	2.55	45	1470		20
LOW GREEP HIGH-ALUMINA BRICKS
FRDRLZ-80	85				20		60		(1550°C)0.8
FRDRLZ-75	75				20		55		(1550°C)0.8
FRDRLZ-65A	65				19		50		(1450°C)1.0
FRDRLZ-65B	65				22		45		(1400°C)0.8
FRDRLZ-60	60				22		40		(1300°C)0.8
FRDRLZ-50	50				22		40		(1250°C)0.7
SI-MULLITE BRICKS
FRZM-1650	60			1790	20	2.55	90	1600	10cm3	2.5
FRZM-1680	65			1800	19	2.60	85	1650	12cm3	2.3