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A. P. GREEN REFRACTORIES CO. MEXICO. MISSOURI 6526S U.S.A. Subsidiary of United States Gypsum Company ' PRELIMINARY TECHNICAL DATA MIZZOU CASTABLE Plus ' 60% Alumina Castable ,. Manufactured at Mexico, Missouri? Oak Hill, Ohio; Philadelphia, Pennsylvania; and Sulphur Springs, Texas MAXIMUM RECOMMENDED TEMPERATURE 3000F QUANTITY REQUIRED - Net 132 lb/ft3 QUANTITY IN PLACE '' lb/ft3 Cured and Then Dried at 220F (105C) -------------------- 138 Heated at 1500F (815C) and Then Cooled -------------- 132 1650C 2.12 g/cc g/cc 2.21 2.12 WATER REQUIRED FOR MIXING Per 100 Pounds (45.4 kg) Approximately . 1 gal (US) ' '3.8 liters MAXIMUM TIME FROM ADDING WATER TO PLACING MATERIAL Minutes---------------------------------------------------------------------------------- 20 PERMANENT LINEAR CHANGE - ASTM C113 Expansion or Shrinkage Cured and Then Dried at 220F (105C) ------------Heated at ISOO^F(815C) and Then Cooled' --------Heated at 2000F (1095C) and Then Cooled -----Heated at 2500F (1370C) and Then Cooled -----Heated at 2900F (1595C) and Then Cooled ------ Nil . 0.1% Shr 0.2% Shr 1.0% Exp 2.0% Exp MODULUS OF RUPTURE - ASTM C133 lb/in2 Cured and Then Dried at 200F (105C) -------------------- 750 Heated at 1500F (815C) and Then Cooled--------------- 340 Heated at 2000F (1095C) and Then Cooled ------------ 370 Heated at 2500F (1370C) and Then Cooled ----------- 600 kg/cm2 53 24 26 42 COLD CRUSHING STRENGTH - ASTM C133 Cured and Then Dried at 200F (105C) ------------------- 2800 Heated at 1500F (815C) and Then Cooled -------------- 1500 Heated at 2000F (1095C) and Then Cooled ------------- 1500 Heated at 2500F (1370C) and Then Cooled ------------- 2100 195 105 105 150 PARTICLE SIZE - ASTM C92 Retained on 4 Mesh Tyler Screen (4.70 mm opening) Wet Analysis----------------------------------------------------------------- Less Than 5% CHEVB8 5677 (Continued) A. P. GREEN REFRACTORIES CO. MEXICO. MISSOURI 65265 U.S.A. Subsidiary of United States Gypsum Company "HEAT-UP" SCHEDULE TO 2500 F. MIZZOU CASTABLE VERSUS MIZZOU CASTABLE Plus - CONDITIONS - . 1. Both take 24-hour minimum hydraulic cure 2. 50 F.Start at ambient air temperature of for heat-up 3. 9" Lining MIZZOU CASTABLE At Schedule B (75 F./hr.) 50 F. to 250 F. Hold at 230 F. 250 F. to 500 F. Hold at 500 F, 500 F. to 1000 F. Hold at 1000 F. 1000 F, to 2500 F, Hold at 2500 F. - 2.7 Hours - 4.5 Hours - 3.3 Hours - 4.5 Hours - 6.7 Hours - 4.5 Hours - 20.0 Hours - 1.0 Hour Total 47.2 Hours MIZZOU CASTABLE Plus At 300 F./hr. From 50 F. to 2500 F. - Hold at 2500 F. Total 8.2 Hours 1.0 Hour 9.2 Hours NOTE: If lost production was worth $1,000/hour for this example, savings would amount to $38,000, Also, FUEL AND "heat-up" MONITORING COSTS WOULD BE SUBSTANTIALLY REDUCED. CHEVB8 5678 MIZZOU CASTABLE Plus THERMAL CONDUCTIVITY Bty}-in At a Mean Temperature of ft hrF 400F (205C) --------------------------------------------------------------- 4.46 800F (425C) --------------------------------------------------------------- 4.67 1200"F {650C) --------------------------------------------------------------- 4.38 1600UF (870C) --------------------------------------------------------------- 5.10 2000"F (1095C) ------------------------------------------------------------- 5.32 2400"F (1315C) -------------------------------------------------------- 5.54 kqal-m inhrC 0.55 0.58 0.61 0.63 0.66 0.69 CHEMICAL ANALYSIS . Calcined Basis Silica - SiO^ -------------- Alumina - A120 ---------- Iron Oxide - Fe_0 -- Lime - CaO -------------------- Magnesia - MgO ------------ Titania - TiO -----------Alkalies - Na^O + K20 31.5 - 34.5% 58.5 - 61.5% 1.0 - 2.0% 2.5 - 3.5% 0.1 - 0.6% 1.0 - 2.0% 0.3 - 0.8% These results cannot be taken as maximum or minimum requirements for specification purposes. i May 2, 1983 CHEVB8 5679