They are durable for various degrees of high temperature and their types can be divided by amount of CaO which is the main element; 1. Conventional Castable – contains more than 2% of CaO 2. Low Cement Castable – contains less than 2% of CaO 3. Cementless Castable – contains less than 0.2% of CaO

BRAND		CAST-13	CAST-13 ES	CAST-15	CAST-15 ES	CAST-16	CAST-17 CG	CAST-18	CAST-11 LW	CAST-13 LW	CAST-18 LW
PROPERTIES
PHYSICAL PROPERTIES :
Max. Service Temperature oC		1300	1300	1500	1500	1600	1700	1800	1100	1300	1800
Approximate Weight Required for Casting kg/ m3		2010	2010	2150	2150	2150	2560	2720	820	1100	1450
Approximate Amount of Water Required for Casting %		12.0	11.0	10.0	10.0	10.0	10.0	9.0	45.0	30.0	20.0
Bulk Density After Drying at 110oC kg/ m3		2070	2115	2160	2270	2240	2640	2830	1030	1320	1660
Modulus of Rupture After Drying at 110oC kg/ cm2		55-75	60-80	50-100	60-110	60-80	70-90	100-140	5-10	20-35	25-50
Cold Crushing Strength After Drying at 110oC kg/ cm2		350-450	350-500	250-350	400-500	300-450	300-400	550-800	25-50	75-150	100-200
Permanent Linear Change %		0.5	1	-0.50	-1.00	-0.20	-0.60	-0.50	0 to -1.00	0 to -1.00	0 to -1.00
After Heating at oC		1260	1260	1480	1480	1595	1705	1760	1000	1260	1760
Thermal Conductivity   at  400oC Kcal/ hr.m.oC		0.52	0.52	0.82	0.82	0.93	1.40	1.56	0.15	0.31	0.71
at  600oC Kcal/ hr.m.oC		0.76	0.76	0.85	0.85	0.95	1.42	1.40	0.17	0.32	0.66
at  800oC Kcal/ hr.m.oC		0.80	0.80	0.87	0.87	0.98	1.20	1.29	0.19	0.34	0.63
at  1000oC Kcal/ hr.m.oC									0.21	0.35	0.63
CHEMICAL ANALYSIS : % Approx.
Alumina (Al2O3) %		28.4	32.8	48.0	53.0	59.6	87.8	93.8	48.0	37.0	94.0
Silica (SiO2) %		58.8	46.6	45.1	40.0	33.2	5.0	0.2	37.5	45.0	0.5
Iron Oxide Fe2O3) %		3.5	3.0	0.9	0.9	1.4	1.2	0.3	0.5	4.0	0.5
Classification :
ASTM Designation		C401-77	C401-77	C401-77	C401-77	C401-77	C401-77	C401-77	C401-77	C401-77	C401-77
		Class B	Class B	Class D	Class D	Class E	Class F	Class G	Class O		Class B