Dense Castables
We offer a wide range of Dense Castables to complement most applications ranging from boiler work, general furnace, burner blocks etc. Our dense castable refractories are made from selected raw material, aggregates and cements.

Particulars	Refcast LT	Refcast Normal	Refcast Super	Refcast Special
Service temp. °C (Max.)	800	1400	1450	1350
Refractoriness °C (Min.)	1350	1580	1680	1450
Bulk Density (gm/cc) (Min.) (Sample, cast, cured, dried at 1100°C)	1.8	2.0	2.4	2.1
Permanent Linear Change (%) (Max.) (at Service Temp.)	± 1.0	± 1.0	± 1.5	± 1.0
Cold Crushing Strength Kgf/cm² (Min.) at 110°C 1350°C 1450°C	250 220 (at 500°C)	250 225 -	350 - 450	400 300 -
Chemical Analysis (%) Al2O3 (Min.) Fe2O3 (Max.)	30.0 4.0	45.0 5.0	70.0 4.0	45.0 4.0
Grain Size (mm) (Max.)	5.0	5.0	5.0	5.0
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Dense Castables(Low Iron)
A range of castable refractories with lower iron content than dense castables. These high purity, low iron productsd are specifically designed for both back-up and exposed to furnace combustion conditions.

Particulars	Ref- -cast A	Ref- -cast 80	Ref- -cast K	Ref- -cast C	Ref- -cast A Super	Ref- -cast K Super	Ref- -cast C Super	Ref- -cast (HA)	Ref- -cast (HA) (Plus)	Re- -fram 70	Re- -fram 20 E
Service temp. °C (Max.)	1750	1700	1600	1500	1700	1600	1500	1800	1850	1650	1750
Refractoriness° C (Min.)	1800	1750	1680	1650	1750	1680	1650	+1900	+1900	1680	1820
Bulk Density (gm/cc) (Min.) (dried at 110° C)	2.8	2.65	2.2	2.1	2.75	2.0	2.0	2.75	2.75	2.5	2.7
Permanent Linear Change (%) (Max.)	± 1.0 (at 1550 °C)	± 1.0 (at 1450 °C)	± 1.0 (at 1550 °C)	± 1.0 (at 1550 °C)	± 1.0 (at 1550 °C)	± 1.0 (at 1550 °C)	± 1.0 (at 1550 °C)	± 1.0 (at 1550 °C)	± 1.0 (at 1550 °C)	± 1.0 (at 1550 °C)	± 1.0 (at 1550 °C)
Cold Crushing Strength Kgf/cm² (Min.) at 110° C	600	525	350	350	650	450	400	600	400	250	250
Chemical Analysis (%) Al2O3 (Min.) Fe2O3 (Max.)	90.0 0.8	80.0 1.3	60.0 1.0	50.0 1.5	88.0 0.7	60.0 1.5	50.0 1.0	94.3 0.3	96.0 0.3	70.0 2.5	85.0 1.5
Grain Size (mm) (Max.)	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0
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