Refractory Castable Manufacturer & Exporter

Refractory Chauhan Group is a dedicated manufacturer and supplier of high-quality refractory castables, castable refractory cement, insulating castables, low-cement castables, and high-temperature castable refractory cement that is widely used in the chemical industry, steel industry, glass industry, sugar plants, and various other industries. Our refractory castables are perfect for back-up and hot face linings. Our refractory cement powder is comprised of the best-quality raw materials that ensure its high performance.

At Refractory Chauhan Group, we offer a comprehensive range of Refractory Castables and Monolithics designed to cater to diverse industrial applications. Our products are formulated to provide exceptional durability, thermal efficiency, and operational reliability, ensuring superior performance even under extreme conditions.

• Conventional Castables

These dense, high-strength castables are formulated to resist abrasion, mechanical stress, and thermal shock. With excellent thermal stability, they are the ideal choice for heavy-duty applications like rotary kilns, furnaces, and incinerators where consistent performance is critical.

a] High Purity Dense Castables

Brand Name	MMP Cast A	Maxheat A (Patch)	Maxheat A (Supreme)	Maxheat A (Normal)	Maxheat M	Maxheat K	Maxheat K(SPL)
Features	HIGH PURITY DENSE CASTABLES
Installation	Vibro-Casting	Vibro-Casting / Gunning	Vibro-Casting	Vibro-Casting	Vibro-Casting	Vibro-Casting	Vibro-Casting
Maximum Service Temp	1750	1600	1650	1600	1700	1600	1600
Grain Size mm	5	5	5	5	5	5	5
Water required for casting %	9-11	13-15	9.5-11.5	10-12	9.5-11.5	11.0-12.5	11.5-12.5
Delivery State	Powder	Powder	Powder	Powder	Powder	Powder	Powder
Packing in Polythene Bags (kg)	25/50	25/50	25/50	25/50	25/50	25/50	25/50
Chemical Analysis
Al2O3 % min	85-88	76-78	82-84	78-82	78-82	56-60	57-61
Fe2O3 max	1.20-1.80	1.80-2.20	2.00-2.30	1.80-2.40	1.60-2.00	1.00-1.30	0.8-1.2
Physical Properties
Bulk Density g/cm³	2.65-2.80	2.45-2.55	2.55-2.70	2.45-2.60	2.50-2.60	2.15-2.25	2.15-2.30
Cold Crushing Strength, Kgs / cm² After Drying at 110C/24h	600-700	400-550	500-700	500-600	550-650	350-500	400-550
THERMAL PROPERTIES
Refractoriness at 110ºC / 24 hrs.	1820/37+	1785/35+	1804/36+	1785/35+	1785/35+	1683/31+	1683/31+
Permanent Linear Change, %
after heating at 800ºC / 3 hrs.	(+)(-) 0.20	(+)(-) 0.20	(+)(-) 0.20	(+)(-) 0.20	(+)(-) 0.20
after heating at 1100ºC / 3 hrs.	(+)(-) 0.30	(+)(-) 0.30	(+)(-) 0.30	(+)(-) 0.30	(+)(-) 0.30
Thermal Conductivity, Kcal/mhr/ºC
at 300ºC CHF	0.84	0.96	1.16	1.68	2.2
at 500ºC CHF	1.04	1.1	1.23	1.75	2.31
at 800ºC CHF	1.16	1.2	1.29	1.8	2.35

b] Medium Purity Dense Castables

BRAND NAME	MMP Normal	MMP Boiler C/G	MMP SPL	MMP 45	MMP Super	MMP Super (N)	MMP LT
GENERAL PROPERTIES
Features	Medium Purity, Dense
Installation	Vibro-Casting	Vibro-Casting / Gunning	Vibro-Casting	Vibro-Casting	Vibro-Casting	Vibro-Casting	Vibro-Casting
Shelf Life (months)	9
Max. Service Temperature (°C)	1400	1150	1350	1350	1450	1350	1000
Max. Grain Size (mm)	5
Water Required for Casting (%)	11-12	12-14	11.5-12.5	11.5-12.5	10.5-11.5	11-13	11.5-13.5
Delivery State	Dry Powder
Packing in Polythene Bags (kg)	25/50
Chemical Analysis (wt%)
Parameter	MMP Normal	MMP Boiler C/G	MMP SPL	MMP 45	MMP Super	MMP Super (N)	MMP LT
Al₂O₃	42-46	35-40	44-47	42-45	68-72	55-59	28-32
Fe₂O₃	3.5-4.5	2.5-3.5	3.5-4.5	5.0-6.0	4.8-5.5	4.0-5.0	2.8-4.2

• Insulating Castables

Brand Name	MMP 4	MMP 7	MMP 8S	MMP 9	MMP 10S	MMP 11
GENERAL PROPERTIES
Features	Very Light Weight, Low Thermal Conductivity	Light Weight, Low Thermal Conductivity	Light Weight, Low Thermal Conductivity	Light Weight, Low Thermal Conductivity	Medium Weight, Low Thermal Conductivity	Medium Weight, Low Thermal Conductivity
Base Raw Materials	Perlite, Vermiculite	Exfoliated Vermiculite	Perlite, Insulating Aggregate	Insulating Aggregate	Insulating Aggregate	Insulating Aggregate
Installation	Tamping	Tamping	Tamping	Tamping	Tamping	Tamping
Shelf Life (months)	9
Maximum Service Temperature (°C)	1000	1100	1300	1200	1100	1300
Maximum Grain Size (mm)	6
Water Required for Casting (%)	80-100	65-70	45-50	46-52	40-48	36-41
Delivery State	Powder
Packing in Polythene Bags (kg)	25
Chemical Analysis (wt%)
Fe₂O₃	10-12	7.0-8.5	0.8-1.0	4.5-6.0	4.5-6.0	3.2-3.8
Physical Properties
Bulk Density (g/cc) at Drying at 110°C/24h	0.50-0.60	0.80-0.90	0.85-0.95	0.90-1.05	1.00-1.15	1.20-1.35
Thermal Properties
Refractoriness (°C/°C) min.	-	1337/12	1398/14	1349/13	1337/12	1398/14
Thermal Conductivity (W/m.K) max. at 800°C Hot Face Temperature	0.25	0.35	0.35	0.45	0.40	0.50

BRAND NAME	MMP 11 LI	MMP 11LIZ	MMP 13	MMP 13 LI	MMP 15	MMP 15 LI	MMP LT
GENERAL PROPERTIES
Features	High Purity. Very Light Weight, Low Thermal Coductivity
Base Raw Features	Insulating Aggregate
Installation	Tamping	Tamping	Tamping	Tamping	Tamping	Tamping	Tamping
Shelf Life (months)	9
Max. Service Temperature (°C)	1350	1300	1350	1400	1350	1400
Max. Grain Size (mm)	6
Water Required for Casting (%)	36-41	40-46	30-35	30-35	27-32	27-32	11.5-13.5
Delivery State	Powder
Packing in Polythene Bags (kg)	25
Chemical Analysis (wt%)
Fe₂O₃	1.5-2.0	0.8-1.2	3.2-3.6	1.4-1.8	3.0-3.5	1.4-1.8	2.8-4.2
PHYSICAL PROPERTIES
Bulk Density after Drying at 110 ^ 0 * C / 24 * h (g / c * c)	1.20-1.35	0.95-1.05	1.40-1.50	1.55-1.65	1.55-1.65	1.4-1.8	2.8-4.2
MECHANICAL PROPERTIES
Cold Crushing Strength ( kg / c m2)
After Drying at 110 ^ 0 * C / 24 * h 40-50	15-30	45-55	75-85	85-95	125-145	2.8-4.2
After Firing at 800 ^ 9 * C / 3 * h	25-35	10-25	25-35	35-45	55-65	70-85
After Firing at 1100 deg * C / 3 * h	25-35	8-20	25-35	35-45	55-65	70-85
After Firing at 1300 deg * C / 3 * h	45-55	15-30	45-55	50-60	65-75	80-100
THERMAL PROPERTIES
Refractoriness (°C/DC) min.	1398/14	1398/14	1398/14	1430/15	1430/15	1430/15
Permanent Linear Change (%):
After Firing at 800 deg C/3h /td>	-0.2 to -0.4	-0.20-0.4	-0.1 to -0.3	-0.20-0.4	-0.1 to -0.3	-0.1 to -0.3
After Firing at 1100 deg C/3h /td>	-0.2 to-0.6	0.3%-0.7	-0.3 to-0.5	-03-06	-0.2 to-0.6.	-0.1 to -0.3
After Firing at 1300 deg C/3h /td>	-1.3 to 0.5	-0.800-1.5	-1.5 10 0.3	-1505 135003	-1.5 10 0.5	-0.1 to -0.3
Thermal Conductivity (W/m.K) max:
At 800 Hot Face Temperature /td>	0.55	0.40	-0.1 to -0.3	0.55	0.60	0.65	0.70

• Ultra Low Cement Castables

Ultra-Low Cement Castables (ULCCs) are engineered with minimal cement content, delivering superior density, low porosity, and exceptional durability. These advanced castables are ideal for high-abrasion areas and critical applications in steel, cement, and chemical industries. Designed to withstand extreme thermal stress, ULCCs ensure reliable performance and extended service life in demanding environments such as furnaces, kilns, and reactors. Their enhanced mechanical strength and thermal resistance make them a trusted solution for industries requiring robust refractory materials.

Brand Name	MMP 45	MMP 57A	MMP 60	MMP 70	MMP 75	MMP 80	MMP 90	MMP 95
	Features	High Strength & Very Low Lime	High Strength & Very Low Lime	High Strength & Very Low Lime	High Strength & Very Low Lime	High Strength & Very Low Lime	High Strength & Very Low Lime	High Strength & Very Low Lime	High Strength & Very Low Lime
Base Raw Materials	Calcined Clay, High Purity Cement	Andalusite, High Purity Cement	Calcined Clay, Calcined Bauxite, High Purity Cement	High Purity Bauxite, Sillimanite, High Purity Cement	High Purity Bauxite, Andalusite, High Purity Cement	Calcined Bauxite, High Purity Cement	WTA, Calcined Bauxite, High Purity Cement	WTA, High Purity Cement
Installation	Vibro-Casting	Vibro-Casting	Vibro-Casting	Vibro-Casting	Vibro-Casting	Vibro-Casting	Vibro-Casting	Vibro-Casting
Shelf Life (months)	4	4	4	4	4	4	4	4
Max. Service Temperature (°C)	1550	1650	1600	1650	1650	1700	1800	1800
Max. Grain Size (mm)	6	6	6	6	6	6	6	6
Water Required for Casting (%)	5.5-6.5	5.2-6.2	4.5-5.5	4.5-5.5	4.5-5.5	4.5-5.5	4.0-5.0	4.0-5.0
Delivery State	Dry Powder	Dry Powder	Dry Powder	Dry Powder	Dry Powder	Dry Powder	Dry Powder	Dry Powder
Packing in Polythene Bags (kg)	25/50	25/50	25/50	25/50	25/50	25/50	25/50	25/50
Chemical Analysis (wt%)
Al₂O₃	44-48	57-60	58-62	68-72	72-75	78-82	88-92	93-95
Fe₂O₃	1.2-1.4	0.8-1.0	1.4-1.6	1.5-1.8	1.1-1.3	1.6-2.0	0.8-1.0	0.2 to 0.4
Physical Properties
Bulk Density (g/cc) after Drying at 110°C/24h	2.30-2.40	2.55-2.65	2.50-2.65	2.65-2.75	2.70-2.80	2.80-2.95	2.95-3.05	3.00-3.15
Mechanical Properties
Cold Crushing Strength (kg/cm²) After Drying at 110°C/24h	400-600	450-600	450-600	450-650	450-650	800-900	500-600	500-600
After Firing at 800°C / 3h	700-800	750-900	850-900	750-950	800-1000	900-1000	900-1000	900-1100
After Firing at 1100°C / 3h	800-900	900-1100	850-950	950-1050	1000-1100	1000-1100	1100-1200	1100-1250
After Firing at 1500°C / 3h	900-1150	1100-1300	1000-1100	1000-1200	1000-1250	1100-1300	1200-1400	1250-1500
Thermal Properties
Refractoriness (°C/OC) min.	1717/32	1804/36+	1785/35+	1804/36+	1804/36+	1804/36+	1820/37+	1835/38+
Permanent Linear Change (%)
Permanent Linear Change (%) After Firing at 800°C / 3h	±0.25	±0.20	-0.01 to -0.25	-0.01 to -0.25	-0.01 to -0.25	-0.01 to -0.25	±0.2	±0.2
Permanent Linear Change (%) After Firing at 1100°C / 3h	-0.1 to -0.4	-0.15 to -0.3	-0.15 to -0.3	-0.15 to -0.3	-0.15 to -0.3	-0.15 to -0.3	-0.1 to -0.3	-0.1 to -0.3
After Firing at 1500°C / 3h	-1.0 to -2.0	-0.5 to +0.8	±1.0	±1.5	-1.0 to +0.8	±1.2	+0.8	±0.8

• Low Cement Castables

Low Cement Castables are designed with reduced cement content, enhancing mechanical strength, thermal conductivity, and resistance to slag and chemical attack. These high- performance castables are ideal for applications in high-temperature environments, including rotary kilns, boiler linings, and reheating furnaces. With superior durability and thermal resistance, they ensure extended service life, even under extreme conditions. Widely used in steel, cement, and power industries, Low Cement Castables provide reliable and efficient solutions for demanding industrial operations.

Brand Name	MMP LC 45	MMP LC 60	MMP LC 70	MMP LC 80	MMP LC 90
Chemical Analysis	45	60	70	80	90
Al2O3 % min	45	60	70	80	90
Fe2O3 max	1	1.5	1.5	1.8	1
SiO2 max	47.8	33.2	23	12.2	5.7
CaO max	1.7	1.7	1.3	1.8	1.7
Physical Properties
Service Temp. ºC	1550	1600	1600	1700	1700
Bulk Density g/cm³	2.3	2.6	2.7	2.9	3
Water required for casting %	4.8 - 5.5	4.7 - 5.7	4.7 - 5.4	4.2 - 5.0	4.2 - 5.0
Grain Size mm	6	6	6	6	6
CCS, Kgs / cm²	700	750	750	800	950
at 110ºC / 24 hrs.	800	800	800	900	1000
at 800ºC / 3 hrs.	900	900	900	1000	1100
at 1100ºC / 3 hrs.	1000	1000	1000	1200	1200
Thermal Properties
PLC, %
after heating at 800ºC / 3 hrs.	(+)(-) 0.20	(+)(-) 0.20	(+)(-) 0.20	(+)(-) 0.20	(+)(-) 0.20
after heating at 1100ºC / 3 hrs.	(+)(-) 0.30	(+)(-) 0.30	(+)(-) 0.30	(+)(-) 0.30	(+)(-) 0.30
Thermal Conductivity, Kcal/mhr/ºC
at 300ºC CHF	0.84	0.96	1.16	1.68	2.2
at 500ºC CHF	1.04	1.1	1.23	1.75	2.31
at 800ºC CHF	1.16	1.2	1.29	1.8	2.35

• Mortar Set40 to Mortar Set50

Mortar Set40 to Set50 is a premium range of refractory mortars designed for high-temperature applications requiring excellent bonding strength and durability. With optimized alumina content, these mortars provide superior resistance to thermal shock, abrasion, and chemical attacks. Ideal for lining furnaces, kilns, boilers, and reactors, they ensure crack-free, long-lasting joints in demanding industrial environments. Easy to apply and highly adhesive, Mortar Set40 to Set50 enhances the lifespan and efficiency of refractory linings.

Brand	MMP Set 40	MMP Set 40 Fine	MMP Set 50	MMP Set 50 S	MMP Set 50 N	MMP Set 50 Fine
Chemical Analysis
Al2O3 % min.	40	40	50	50	50	50
Fe2O3 % max.	3.5	2.2	4	2.2	4	2.2
SiO2 % max.	41.9	50.8	31	38.6	33	34
CaO % max.	0.3	0.3	0.3	0.3	0.8	0.4
Physical Properties
Service Temp ºC	1450	1550	1500	1600	1550	1500
Sintering Temp ºC	1100	1100	1100	1100	1100	1100
Grain size	1	0.5	1	0.5	1.5	0.5
Water for trowelling consistency, %	36 - 40	25 - 30	25 - 30	25 - 30	24 - 28	24 - 28
Thermal Properties
PCE, Orton/ºC min	31 / 1683	31 / 1683	31 1/2 / 1699	31 1/2 / 1724	31 1/2 / 1699	31 1/2 / 1699

• Mortar 60 to Mortar 99

Mortar 60 to Mortar 99 is a range of high-performance refractory mortars designed for bonding refractory bricks and shapes in high-temperature applications. With alumina content ranging from 60% to 99%, these mortars provide excellent strength, thermal resistance, and chemical stability. They are ideal for use in steel furnaces, rotary kilns, boilers, and petrochemical reactors. Engineered for easy application and superior adhesion, these mortars ensure durable and crack-free joints, enhancing the longevity and efficiency of refractory linings.

Brand	MMP SET 60	MMP SET 60 fine	MMP SET 70	MMP SET 80	MMP SET 90	MMP SET 99
	CHEMICAL ANALYSIS
Al₂ O₃ % min.	60	60	70	80	90	96
Fe₂O₃ % max.	3.5	2.2	3.5	3.5	0.3	0.3
SiO₂ % max.	25.4	29	17	10.1	6.3	0.8
CaO % max.	0.3	0.5	0.5	0.7	0.1	0.1
PHYSICAL PROPERTIES
Service Temp ºC	1600	1650	1600	1700	1750	1800
Sintering Temp ºC	1100	1100	1100	1100	1100	1100
Grain size	0.5	0.5	0.5	0.5	0.5	0.5
Water for trowelling consistency, %	21 - 24	25 - 30	21 - 24	18 - 22	35 - 40	50 - 60
THERMAL PROPERTIES
PCE, Orton/ºC min	33 / 1743	34 / 1763	34 / 1763	34 / 1763	38 / 1835	38 / 1835

• High refractoriness, high refractoriness under load.
• High density, low porosity.
• Good slag resistance and corrosion resistance.
• High strength and wear resistance.
• Good resistance to flake performance.
• Good thermal shock stability.
• Scouring resistance.
• Long service life