Castables

Low CaO content ensures high Refractoriness, excellent hot strength and MOR at all temperatures. Lower apparent Porosity after firing offer better corrosion resistance, High Abrasion & spalling resistance and volume stability.

BRANDS	Reframon 45	Reframon 60	Reframon 70	Reframon 70 M	Reframon 80	Reframon 90	Reframon 95
Chemical Analysis
Alumina (Al2O3), %, min	45	60	70	70	80	90	93
Iron Oxide (Fe2O3), %, max	1.0	1.5	1.5	0.5	2.5	1.5	0.3
Silica (SiO2), %, max	50	36	25	25	14	5.7	4
Lime(CaO), %, max	2	2	2	2	2	2	1.8
Physical Analysis
Service temperature, 0C	1550	1600	1600	1700	1700	1700	1800
Grain Size in mm	0-6	0-6	0-6	0-6	0-6	0-6	0-6
Water required for casting, %	4.8-5.8	4.5-5.5	4.5-5.5	4.5-5.5	4.2-5.0	4.2-5.0	4.0-4.8
Bulk Density, Gm/cc, min	2.3	2.5	2.65	2.6	2.8	2.9	3
Cold Crushing Strength, Kg/cm2, min
at 1100C/24 hrs	650	700	750	650	800	900	1000
at 8150C/3 hrs	800	800	800	750	900	1000	1050
at 11000C/3 hrs	900	900	900	850	1000	1100	1100
at 13500C/3 hrs	1000	1000	1000	1000	1200	1200	1250
Thermal Conductivity
Permanent Linear Change, %, max
After heating at 8150C/3 hrs	+/-0.2	+/-0.2	+/-0.2	+/-0.2	+/-0.2	+/-0.2	+/-0.2
After heating at 11000C/3 hrs	+/-0.3	+/-0.3	+/-0.30	+/-0.30	+/-0.3	+/-0.3	+/-0.3
After heating at 15000C/3 hrs	+/-2.0	+/-1.5	+/-1.5	+/-1.0	+/-1.5	+/-1.5	+/-1.0
Thermal Conductivity, Kcal/m/hr/degC, max
at 3000C HF	0.9744	1.1136	1.3456	1.392	1.9488	2.552	2.61
at 5000C HF	1.2064	1.276	1.4268	1.45	2.03	2.6796	2.668
at 8000C HF	1.3456	1.392	1.4964	1.566	2.088	2.726	2.726

Packaging : 50 kgs bag

Storage Life : 9 Months

ABOVE LC/ULCC CASTABLES OFFERS FOLLOWING ADVANTAGES:

• Low CaO content ensures high refractoriness.
• Excellent hot strength and MOR at all temperatures.
• Lower apparent porosity after firing offers better corrosion resistance.
• High abrasion and spalling resistance.
• High volume stability.

Refratab 94 and Refratab 97 are very high purity White Tabular Alumina based castables meant for critical applications in fertilizer, refinery, petrochemical and steel industries. These castables can withstand service temperature upto 1850 C in carbon monoxide and hydrogen atmospheres.

These castables have high bulk density, high mechanical strength at all temperatures, excellent workability, good abrasion resistance, excellent resistance to thermal spalling and good volume stability.

Refratab 97L is a bubble Alumina based Insulating Castable, which is suitable for high temperature Application (upto 1800 C). This product has an extremely low level of impurity, high strength, low density and low thermal conductivity.

BRANDS	Refratab-94	Refratab	Refratab 97 L
Chemical Analysis
Alumina ( Al2O3), %, min	93	95	93
Iron Oxide (Fe2O3), %, max	0.3	0.3	0.3
Lime (CaO), %, max	5	3.5	5.0
Physical Analysis
Service temperature, 0C, max	1800	1850	1800
Bulk Density, Gm/cc, min	2.75	2.75	1.70 max
Water required for casting, %	8.5-10.5	8.5-10.5	12-16
Grain Size, mm, max	6	6	6
Cold Crushing Strength Kg/cm2, min
at 1100C/24 hrs	600	400	110
at 8150C/3 hrs	350	280	75
at 14500C/3 hrs	400	-	100
Thermal Properties
Permanent Linear Change, %
After heating at 8150C/3 hrs	+/-0.2	+/-0.2	+/-0.2
After heating at14500C/3 hrs	+/-0.8	+/-1.0	+/-1.0

Storage Life: 9 Months.

Packaging: 25 Kgs Bag.

High Purity Dense Castables are refractory castables suitable for high temperature applications. These castables are available in various grades suitable for a specific range of operational conditions.

These refractory castables are hydraulic setting and can be casted or moulded to any shape and can also modified for gunning of furnace linings.

BRANDS	Refracast A	Refracast A Supreme	Refracast K	Refracast K Spl	Refracast C	Refracast C Spl	Refracast C Super
Chemical Analysis
Alumina (Al2O3), %, min	86	82	58	60	49	50	52
Iron Oxid (Fe2O3), %, max	1.2	1.7	1.2	1.2	1.3	1.2	1.7
Physical Analysis
Service temperature, 0C	1700	1650	1600	1600	1500	1500	1500
Grain Size, mm	0-6	0-6	0-6	0-6	0-6	0-6	0-6
Water required for casting, %	9-11	9-11	9-11	9-11	9.5-11.5	9.5-11.5	9.5-11.5
Bulk Density, Gm/cc, min	2.7	2.6	2.2	2.25	2.1	2.15	2.25
Cold Crushing Strength, Kg/cm2,min
at 1100C/24 hrs	600	500	350	400	350	400	500
at 8150C/3 hrs	430	300	250	300	250	300	400
at 11000C/3 hrs	330	330	230	250	220	200	300
At 15000C/3 hrs	650	550	450	480	-	-	500
Thermal Properties
Permanent Linear Change, %, max
After heating at 11000C/3 hrs	+/-0.30	+/-0.4	+/-0.3	+/-0.3	+/-0.3	+/-0.3	+/-0.3
After heating at 14500C/3 hrs	+/-1.5	+/-2.0	+/-1.75	+/-1.75	+/-2.0	+/-2.0	+/-2.0
Thermal Conductivity, W/mK, max
at 4000C HF	1.33	1.32	0.94	0.96	0.87	0.90	0.94
at 6000C HF	1.39	1.37	0.96	0.99	0.90	0.94	0.96
at 8000C HF	1.46	1.44	1.00	1.02	0.94	0.97	1.00

Packaging : 25 Kgs
Storage Life : 12 Months

With the advancement in properties of castables by new techniques and innovations, superior grade castables which can be easily installed against shuttering, faster setting and strength development without the elaborate curing and heat dry out operations has facilitated industry applications in a significant way especially achieving a quicker turnaround.

With the use of special additives developed in house using our Raw Material Base, superior bond in the matrix is achieved.

Refrachem Castables have excellent properties namely shorter drying time, better refractoriness, better chemical resistance, longer working life and shelf life.

BRANDS	Refrachem 60	Refrachem 70	Refrachem 90
Chemical Analysis
Alumina (Al2O3), %, min	60	60	70
Iron Oxide (Fe2O3), %, max	1.5	1.0	1.0
Physical Analysis
Service temperature, 0C	1600	1600	1700
Bulk Density, Gm/cc, min	2.6	2.65	2.85
Apparent Porosity, %, max	16	16	18
Cold Crushing Strength, Kg/cm2, min	750	800	900
Thermal Properties
Permanent Linear Change @ 14500C/3 hrs, %, max	+/-0.5	+/-0.5	+/-0.5

Refracrete medium purity dense castables are suitable for use in applications. This group of castables contains medium purity high alumina cement as the refractory binder and castables are used for oxidising atmospheres.

These refractory castables are hydraulic setting and can be casted or moulded to any shape and can also be modified for gunning of furnace linings.

BRANDS	Refracrete Normal	Refracrete Super	Refracrete Spl.
Chemical Analysis
Alumina (Al2O3), %, min	45	68	47
Iron Oxide (Fe2O3), %, max	3	5	3
Physical Analysis
Service temperature, 0C	1400	1450	1400
Grain Size, mm	0-6	0-6	0-6
Water required for casting, %	10.5-12.5	10-12	10-12
Bulk Density, Gm/cc, min	2.1	2.45	2.2
Cold Crushing Strength Kg/cm2, min
at 1100C/24 hrs	250	350	400
at 8150C/3 hrs.	200	250	300
at 11000C/3 hrs.	150	200	200
at 13500C/3 hrs	250	350	300
Thermal Properties
Permanent Linear Change, %, max
After heating at 8150C/3 hrs	-	-	-
After heating at 11000C/3 hrs	+/-0.3	+/-0.3	+/-0.3
After heating at 13500C/3 hrs	+/-1.0	+/-1.5	+/-1.25
Thermal Conductivity, Kcal/m/hr/degC, max
at 4000C HF	0.86	1.08	0.87
at 6000C HF	0.90	1.10	0.93
at 8000C HF	0.97	1.14	1.00

Storage Life: 12 Months.

Packaging: 50 Kgs.

Refralite are a range of insulating castables to conserve heat in furnaces. They are light but strong and have low conductivity, serve as either hot face or back up insulating refractory lining.

These castables are produced in density range of 400 to 1600 kg/m3. They are available mainly in two different grades – medium purity and high purity. The high purity (Low Iron) variety is suitable for reducing environments.

BRANDS	Refralite-4	Refralite-7	Refralite-9	Refralite-10S	Refralite-11	Refralite-13	Refralite-15
Chemical Analysis
Alumina (Al2O3), %, min	30	32	33	35	36	38	39
Iron Oxide (Fe2O3), %, max	4	4	4	3.5	3.5	3.2	3.2
Physical Analysis
Service temperature, 0C	1000	1100	1200	1260	1300	1350	1350
Grain Size, mm	0-6	0-6	0-6	0-6	0-6	0-6	0-6
Water required for casting, %	80-100	60-65	40-45	40-48	30-35	25-30	23-28
Bulk Density, Gm/cc, max	0.65	0.85	1.05	1.15	1.3	1.45	1.65
Cold Crushing Strength, Kg/cm2, min
at 1100C	6	12	15	20	35	50	90
at 8150C	3	4	6	15	25	30	60
at 11000C	-	6	-	12	25	30	60
at 13000C	-	-	-	-	40	50	70
Thermal Properties
Permanent Linear Change, %, max
After heating at 8150C/5 hrs	+/-0.6	+/-0.8	+/-0.6	+/-0.8	+/-0.4	+/-0.3	+/-0.3
At Service Temperature/5 hrs	-	+/-1.2	+/-1.00	+/-1.2	+/-1.00	+/-0.8	+/-1.00
Thermal Conductivity, W/mK, max
at 3000C HF	0.08	0.17	0.28	0.29	0.31	0.35	0.45
at 5000C HF	0.10	0.23	0.3	0.31	0.35	0.37	0.49
at 8000C HF	0.14	0.25	0.32	0.34	0.37	0.41	0.52

Storage Life: 12 Months.
Packaging: 25 Kgs.

Refralite are a range of insulating castables to conserve heat in furnaces. They are light but strong and have low conductivity, serve as either hot face or back up insulating refractory lining.

These castables are produced in density range of 400 to 1600 kg/m3. They are available mainly in two different grades medium purity and high purity. The high purity (Low Iron) variety is suitable for reducing environments.

BRANDS	Refralite 9 Li	Refralite-11Li	Refralite-13Li	Refralite- 15Li	Refralite-HT
Chemical Analysis
Alumina (Al2O3), %, min	40	43	45	45	60
Iron Oxide (Fe2O3), %, max	1	1.5	1.5	1.5	1
Physical Analysis
Service temperature, 0C	1260	1350	1400	1400	1500
Grain Size, mm	0-6	0-6	0-6	0-6	0-6
Water required for casting, %	45-50	34-40	27-32	23-28	25-30
Bulk Density, Gm/cc, max	0.95	1.3	1.5	1.65	1.65
Cold Crushing Strength, Kg/cm2, min
at 1100C	25	50	80	100	100
at 8150C	20	30	40	80	40
At Service Temperature	30	50	50	70	50
Thermal Properties
Permanent Linear Change, %, max
After heating at 8150C/5 hrs	+/-0.3	+/-0.3	+/-0.3	+/-0.3	+/-0.3
At Service Temperature/5 hrs	+/-1.0	+/-1.0	+/-0.6	+/-1.0	+/-1.5
Thermal Conductivity, W/mK, max
at 3000C HF	0.24	0.35	0.41	0.44	0.43
at 5000C HF	0.27	0.37	0.44	0.49	0.48
at 8000C HF	0.29	0.42	0.48	0.51	0.5

Storage Life: 12 Months.
Packaging: 25 Kgs Bags.

Plastic refractory castable is a mixture of refractory aggregate, binder and additives that can be molded like clay or putty. They are installed by hand or with use of Pneumatic Hammer to form the Refractory Mass. Once applied, plastic refractory hardens and forms a dense, durable lining which can be used in various applications and locations.

It has non wetting characteristics, thermal shock resistance, abrasion resistance, strong plasticity and good bonding performance.

BRANDS	Refraplast 60	Refraplast 80	Refraplast 90
Chemical Analysis
Alumina (Al2O3), %, min	60	80	88
Iron Oxide (Fe2O3), %, max	1.5	1	0.5
Physical Analysis
Service temperature, 0C	1600	1650	1700
Grain Size in mm	0-6	0-4	0-4
Bulk Density, Gm/cc, min	2.1	2.4	2.6
Cold Crushing Strength, Kg/cm2, min
at 3000C/3 hrs	100	150	150
Thermal Properties
Pyrometric Cone Euivalent, Orton Cone, min	+34/1763	+36/1804	+7/1820
Permanent Linear Change, %, max
After heating at 14500C/3 hrs	+/-1.5	+/-1.5	+/-1.5

Storage Life : 3 Months

Refracoat a special refractory coating material specially meant for protection of linings-Fire Bricks, Monolithic, Castables, Ceramic Blankets and Shells in Furnaces, Boilers and various high temperature vessels.

Main Application:

• Reduces the effect of Thermal shock and to eliminate surface cracking phenomena, protects Refractories against aggressive effects of fuel oil,Gases and solid fuels.
• Provides Gas tight surface and reduces energy losses.
• Reduces slag adhesion.
• Increase in working life of Furnace
• Reduces cost of maintenance shutdown.
• Reduces fuel consumption.

Protection to Refractory linings

• Fire Bricks
• Castables
• Ramming Masses
• Ceramic Blanket & Modules
• Plastics and Steel Shells in variety of Furnaces
• Boilers and High Temperature Vessels

Application

Refracoat - Z mixed with clean tap water to form a smooth paste. Add required water to adjust the consistency of the mix to suit Brushing, Trowelling or Spray applications.

Packing

50Kgs. in air tight drums

Drying

The coating must be allowed to air dry for a minimum of 12 hours.

Firing

Raise firing temperature as slowly and evenly as possible typically at 25˚C per hour until 125˚C is reached. Thereafter for Refracoat - Z, the furnace may be heated to its working temperature as usual.

Chemical Properties
Zirconia (ZrO2)	62%min
Silica (SiO2)	32%
Physical Properties
Temperature Range	Up-to 1900˚C max.
Dry Density	3.30 gm/cc
Thermal Expansion	1% from 0˚C to 1900˚C
Volume Shrinkage	0.25% max.
K Value	0.43 Kcal Units @ 500˚C
Electrical Property	Good Insulator after drying
Emissivity	0.58
Thermal Shocks	Excellent Resistance since coating Becomes pyroplastic above 200˚C-250˚C

* Data represent typical average properties and do not constitute a specification.