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Properties | IS 9428 | ASTM | C533:90 | JR Grade | Type I | Type II | 800 | 1000 |
Temperature max. | 950 | 649 | 871 | 800 | 1000 |
Bulk Density (Kg/m3)Test Values Avg. Vzalues | 200 320 220-280 | (max) 240 | (max) 240 | 220 270 | 230 275 |
Compressive Strength Reduction in thickness, max. | |||||
Dry Under a load of 415 KN/m2 | 5% | 5% | 5% | 3% | 3% |
Wet, Under a load of 170 Kn/m2 | 5% | - | - | 3.5% | 3.5% |
Dry , under a load of 345 Kn/m2 After 24 hrs heat soak | 5% | - | - | 3.5% | 3.5% |
Flexural Strength (Kn/m2) min. | 240 | 310 | 310 | 400 | 400 |
Heat Resistance after heat soak at max. Temp. For 24 hrs, Liner Shrinkage (length) | |||||
Max | 2% | 2% | 2.50% | 2% | 2% |
Typical | - | - | - | 1.6% | 1.8% |
Loss in Mass. Max. | 15% | - | - | 15% | 15% |
Thermal Conductivity (W/mk) Max. At mean temp. | |||||
200 C | 0.080 | 0.079 | 0.095 | 0.070 | 0.080 |
300 C | 0.097 | 0.095 | 0.110 | 0.080 | 0.090 |
400 C | 0.121 | - | 0.136 | - | 0.105 |
500 C | 0.147 | - | - | - | 0.120 |
Cold Crushing Strength (CCS) (kg/cm2), min | |||||
Light Grade (k/value 0.12ZW/mk)Medium Grade (k/value 0.15w/mk) | - | - | - | 10 | 25 |
Specifications
Properties | JR : 7 | JR : 9 | JR : 9HS | JR : 11 | JR : 13 | JR : 15 | |
Recommended Service Temp. (oC) | 1100 | 1100 | 1100 | 1350 | 1350 | 1350 | |
Dry Density (kg/m3) | 750 850 | 900 1000 | 900 1000 | 1100 1250 | 1300 1450 | 1500 1600 | |
Thermal Conductivity (kcal/m/hr/oC, max.) | 0.14 | 0.28 | 0.28 | 0.31 | 0.33 | 0.44 | |
CCS (Kg/cm2) | 110 oC | 1214 | 1520 | 2025 | 3545 | 5060 | 90100 | 800 oC | 46 | 68 | 810 | 2530 | 3040 | 6070 | 1100 oC | 68 | 1014 | 1520 | 2530 | 3040 | 6070 | 1300 oC | - | - | - | 40 45 | 5070 | 7090 |
PLC (%) | 500 oC | - | 0.2 | - | - | - | - | 800 oC | 1.0 | 0.6 | - | - | - | - | 1100 oC | 1.6 | 1.0 | 1.5 | 0.2 | 0.2 | 0.2 | 1300 oC | - | - | - | 1.0 | 0.6 | 0.6 |
Fe2O3 (%) max | 8.5 | 6 | 3 | 3.5 | 3.5 | 3.2 |
Specifications
Type | AI2O3 % | Fe2O3 % | PCE | Grain Size mm | Setting | Service Temp oC | OC | oC |
JR30CM | 30 | 2.50 | 30 | 1650 | 0 1.0 | Heat | 1350 |
JR40CM | 40 | 2.50 | 30 | 1650 | 0 1.0 | Heat | 1400 |
JR60CM | 60 | 4.00 | 33 | 1745 | 0 0.5 | Heat | 1550 |
JR70CM | 70 | 4.00 | 34 | 1760 | 0 0.5 | Heat | 1600 |
Product Data Mortars : JR Set 50 (N)
Mortars | ||
Product | JR Set 50 (N)* | |
Type | 50% Alumina Mortar (Coarse) | |
Nature of Bond | Chemical/Ceramic | |
General Properties | ||
Raw Material Base | Calcined Bauxite | |
Max. Service Temperature | 1550 oC | |
Sintering Tempertaure | 1100 oC | |
Max. Grain Size | 1.5 mm | |
Chemical Analysis | ||
Formula | Typical Value | Specification |
AI2O3 % | 51.90 | 50 Min. |
SiO2 % | 32.60 | - |
Fe2O3 % | 3.60 | 4.0 Max |
TiO2 % | 5.80 | - |
CaO | 0.80 | - |
LOI% | 5.00 | - |
Physical Properties | ||
Details | Typical Value | Specification |
Water for Trowelling Consistency % | 24 28 | - |
Water Required for ramming consistency % | 10 20 | - |
Transcerse strength After drying at 110 oC for 24 hours (kg/cm2) | 17 | - |
% Retained above maximum size | 2 | 5.0 max |
Thermal Properties | ||
Detail | Typical Value | Specification |
Pyrometric cone equlvalent (Orton/oC) | 32/1717 | 31.5/1699 |
Specifications
Medium Purity Dense Castables | ||
CT Crete Super | ||
Product | CT Crete (Super)* | |
Type | 70% Alumina Castable | |
Nature of Bond | Hydraulic | |
Installation | Vibration casting | |
General Properties | ||
Raw Material Base | Calcined Bauxite | |
Max. Service Temperature | 1450o | |
Max. Grain Size | 1.5 mm | |
Water required for casting | 10 11 % | |
Reversible Thermal Expansion | 0.65% at 1000o | |
Chemical Analysis | Typical Value | Specification |
Al2O3% | 70.5 | 70.00 min. |
SiO2% | 11.5 | - |
Fe23% | 4.2 | 5.00 max. |
TiO2% | 7.2 | - |
CaO | 6.1 | - |
LOI % | 0.3 | - |
Physical Properties | Typical Value | Specification |
Water for trowel ling consistency % | 24 28 | - |
Water required for ramming consistency % | 10 20 | - |
Transverse strength after drying at 110 oC for 24 hours (kg/cm2) | 17 | - |
Retained above maximum size | 2 | 5.00 max. |
Thermal Properties | Typical Value | Specification |
Pyrometric cone equivalent (Orton/oC) | 32/1717 | 31.5/1699 |
Other Details | ||
Packaging | 50 Kg. bags | - |
Storage life | 12 months | - |
Delivery state | Dry | - |
Specifications
Acid Proof Bricks (IS 4860) | |||
Characteristic | Class I | Class II | |
Water absorption (%) max. | 2 | 4 | |
Flexural Strength (Kn/cm2) min. | 100 | 70 | |
Compressive strength (kg/cm2 min.) | 700 | 500 | |
Resistance to Acid/Loss in Weight (%) Max. | 1.5 | 4.0 | |
Acid Resistant Mortars (IS 4832 Part I) | |||
Properties | Sodium Silicate type | Potassium Silicate Type | |
Working Time (Minutes) min. At 27 2oC | 15 | 20 | |
Flexural Strength (Kn/cm2) min. At 7 days | 35 | 40 | |
Compressive strength (kg/cm2 min. At 7 days) | 100 | 150 | |
Bond Strength (kg/cm2) min | 5 | ||
Absorption of Toluene (% by weight) max. | 18 |
Specifications
Properties | Grade A [ CTI-A ] | Grade B [ CTI-B ] | Grade C [ CTI-C ] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bulk Density (gm/cc, max.) | 1 | 0.9 | 0.75 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Apparent Porosity (%, min.) | 60 | 60 | 65 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Cold Crushing Strength (kg/cm2, min.) | 20 | 15 | 7 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Pyrometric Cone [ASTM] No. (min.) | 32 | 27 | - | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Suitable for temperatures up to (o) | 1500 | 1250 | 850 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Thermal Conductivity at Hot Face temperature of 600o(kcal/m/hr/o) | 0.35 | 0.23 | 0.2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
PLCR (o/3 hours, max.) | ±1.5 at 1250o | ±1.5 at 1200o | ±1.5 at 1000o | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Mica Insulating Bricks
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