Product Specification

 

Technical Specification of Conventional Castables
PRODUCT: WHYTHEAT A WHYTHEAT K WHYTHEAT C TABCAST 94 TABCAST 97 FIRECRETE (N) FIRECRETE (SPL) FIRECRETE (SUPER)
TYPE: 90% ALUMINA 60% ALUMINA 50% ALUMINA 94% ALUMINA 97% ALUMINA 45% ALUMINA 45% ALUMINA 70% ALUMINA
  DENSE CASTABLE DENSE CASTABLE DENSE CASTABLE CASTABLE (HS) DENSE CASTABLE CASTABLE CASTABLE  (HS) CASTABLE
NATURE OF BOND : HYDRAULIC HYDRAULIC HYDRAULIC HYDRAULIC HYDRAULIC HYDRAULIC HYDRAULIC HYDRAULIC
INSTALLATION: VIBRATION CASTING VIBRATION CASTING VIBRATION CASTING VIBRATION CASTING VIBRATION CASTING VIBRATION CASTING VIBRATION CASTING VIBRATION CASTING
                 
                 
GENERAL PROPERTIES                
RAW MATERIAL BASE: BROWN TABULAR CALCINED DIASPORE CALCINED CLAY WHITE TABULAR WHITE TABULAR CALCINED CLAY CALCINED CLAY CALCINED CLAY
  ALUMINA     ALUMINA (WTA) ALUMINA      
MAX. SERVICE TEMP. 17500C 16000C 15000C 18000C 18500C 14000C 13500C 14500C
MAX GRAIN SIZE: 5 mm 5 mm 5 mm 5 mm 5 mm 5 mm 5 mm 5 mm
WATER REQ. FOR CASTING: 7.5 - 8.5% 9.5 - 10.5% 9.5 - 10.5% 8.5-9.5% 8.5-9.5% 10.5-11.5% 10.5-11.5% 10-11%
REVERSIBLE THERMAL EXPANSION: 0.80% at 10000C 0.60% at 10000C 0.55% at 10000C 0.90% at 10000C 0.90% at 10000C 0.55% at 10000C 0.55% at 10000C 0.65% at 10000C
                 
CHEMICAL ANALYSIS,% TY             SPE TY             SPE TY             SPE TY             SPE TY             SPE TY             SPE TY             SPE TY             SPE
AL2O3 90.30     90.00 min. 60.50     60.00 min. 50.50     60.00 min. 94.40       94.00 min. 94.40       94.00 min. 46.00      45.00 min. 46.50      45.00 min. 70.50      70.00 min.
SiO2 02.60            - 32.30            - 41.30            - 0.20             0.3max 0.18             0.3max 39.40               - 34.70               - 11.50               -
FE2O3  0.75            0.80max  0.90            1.0max 1.2            1.0max 0.16             0.3max 0.20             0.3max 3.20           4.00max 3.50           4.00max 4.20           5.00max
TiO2 1.2                - 1.4                - 2.20                - 0.18               - 0.10               - 5.30               - 6.60               - 7.20               -
CaO 4.70              - 4.30              - 4.20              - 4.85             5.0max 4.85             2.8max 5.60               - 8.00               - 6.10               -
LOI 0.20               - 0.30               - 0.30               - 0.20               - 0.20               - 0.20               - 0.40               - 0.30               -
                 
PHYSICAL PROPERTIES                
Bulk density, g/cc                
after drying at 1100C/24 hrs 2.80         2.75 min 2.22         2.20 min 2.18         2.10 min 2.84         2.80 min 2.83         2.80 min 2.14         2.10 min 2.22         2.20 min 2.55         2.50 min
CCS, kg/cm2                
after drying at 1100C/24 hrs 640         600 min 380         350 min 380         350 min 660         600 min 450         400 min 300         250 min 425         400 min 400         350 min
after heating at 8000C/3 hrs 430              - 280              - 280              - 480         450 min 300         280 min 240            - 300            - 250            -
after heating at11000C/3 hrs 430              -        230              -        220              -        450         400 min 275         250 min 180            - 225            - 200            -
after heating at 14500C/3 hrs               500        450 min
after heating at 15000C/3 hrs       750         700 min 425         400 min      
after heating at 15500C/3 hrs 650              - 520              - 500              -          
MOR, kg/cm2                
after drying at 1100C/24 hrs 95                - 65                - 65                - 100            - 80            - 50            - 60            - 65            -
after heating at 8000C/3 hrs 60                - 30                - 30                - 75            - 55            - 28            - 30            - 35            -
after heating at11000C/3 hrs 45                - 27                - 27                - 50            - 35            - 20            - 25            - 30            -
after heating at 14500C/3 hrs                
after heating at 15000C/3 hrs       100            - 85            -      
after heating at 15500C/3 hrs 110             - 90             - 85             -          
% Retained on maximum size   2           5max   2           5max   2           5max  1          5max  1          5max  2          5max  2          5max  1          5max
                 
THERMAL PROPERTIES                
Refractoriness, Orton/0C +37     +37/+1820 min. +37/1717     +31/+1683 min. +31/1683     +30/+1665 min. +38/+1835  +38/+1835 min. +38/+1835  +38/+1835 min. +23/+1605  +20/+1564 min. +16/+1491  +1450 min. +32/+1717  +31/+1683 min.
PLC,%                
after heating at 8000C/3 hrs -0.06           - -0.12           - -0.06           - -0.06       0.20 Max -0.06       0.10 Max -0.06        - -0.12        -       -
after heating at11000C/3 hrs -0.12           -     -0.19           -     -0.12           -     -0.12       0.20 Max -0.12       0.20 Max -0.12       - -0.15       - -0.18       -
after heating at 14500C/3 hrs                
after heating at 15000C/3 hrs     -0.85      1.00 Max -0.24      0.50 Max -0.60      0.80 Max      
after heating at 15500C/3 hrs -0.80       0.80 Max -1.20       1.50 Max            
HMOR at 14000C, kg/cm2                
Thermal conductivity, Kcal/m hr0C                
At 4000C HF 1.15            - 0.81            - 0.75            - 1.37            - 1.40            - 0.74            - 0.75            - 0.93            -
At 6000C HF 1.20            - 0.83            - 0.78            - 1.40            - 1.43            - 0.78            - 0.80            - 0.95            -
At 8000C HF 1.26            - 0.86            - 0.81            - 1.42            - 1.46            - 0.84            - 0.86            - 0.98            -
                 
Packaging: 50 Kg bags 50 Kg bags 50 Kg bags 50 Kg bags 50 Kg bags 50 Kg bags 50 Kg bags 50 Kg bags
Storage life: 9 months 9 months 9 months 9 months 9 months 9 months 9 months 9 months
Delivery state: dry dry dry dry dry dry dry dry
 TY : TYPICAL VALUE          SPE : SPECIFICATION           HS : HIGH STRENGTH          SS : SUPERIOR STRENGTH

 

Note
The above data relates to standard sized, machine pressed bricks only.For bigger & pneumatically rammed shapes, results may vary. General size tolerance will be1.5% or 2mm whichever is greater.

 

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Pratik Industrial Estate, 1st Floor, 'B' Wing, Mulund-Goregaon Link Road, Bhandup(W), Mumbai - 400 078. India.E-mail: n.arora@arorarefractories.in or office@arorarefractories.in www.arorarefractories.in