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Whytheat
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� FILENAME WHYTHEAT A ( M)�
Page � PAGE 1� of � NUMPAGES 1�
PRODUCT DATA
HIGH PURITY DENSE CASTABLES
PRODUCT: WHYTHEAT A (M)
TYPE: 85 % ALUMINA DENSE CASTABLE
NATURE OF BOND: HYDRAULIC
INSTALLATION : VIBRATION CASTING
GENERAL PROPERTIES
RAW MATERIAL BASE : BTA & CALCINED DIASPORE
MAX. SERVICE TEMPERATURE : 1700 C MAXIMUM GRAIN SIZE : 5 mm
WATER REQUIRED FOR CASTING: 9.0 - 10.5 %
REVERSIBLE THERMAL EXPANSION: 0.75 % at 1000 C
CHEMICAL ANALYSIS, %
TYPICAL VALUE
SPECIFICATION
Al2O3 85.50 85.00
SiO2 5.10 -
Fe2O3 1.30 1.50 max.
TiO2 2.00 - CaO 5.50 -
LOI 0.30 -
PHYSICAL PROPERTIES TYPICAL VALUE SPECIFICATION Dry density, g / cc
after drying at 110 ºC / 24 hrs
2.78
2.75 min
CCS, kg/cm2
after drying at 110 ºC / 24 hrs
after heating at 800 ºC / 3 hrs
after heating at 1100 ºC / 3 hrs
after heating at 1550 ºC / 3 hrs
650
450
380
600
600 min.
-
-
-
MOR, kg/cm2
after drying at 110 ºC / 24 hrs
after heating at 800 ºC / 3 hrs after heating at 1100 ºC / 3 hrs
after heating at 1550 ºC / 3 hrs
85
60 45
100
-
- -
-
% Retained on maximum size 1 5 max.
THERMAL PROPERTIES
TYPICAL VALUE SPECIFICATION Refractoriness, Orton/ºC + 36 / + 1804 36 / 1804 min.
PLC, %
after heating at 800 ºC / 3 hrs
after heating at 1100 ºC / 3 hrs
after heating at 1550 ºC / 3 hrs
- 0.12
- 0.18
- 0.80
-
-
1.00 max. Thermal Conductivity, cal/m/hr/ºC
at 400 ºC HF
at 600 ºC HF
at 800 ºC HF
1.05
1.10
1.15
-
-
-
Packaging : 25 kg bags Storage life : 9 months Delivery state : dry