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  Fire clay and high Alumina Bricks 1

 

Quality Al2O3 % Min. Fe2O3 % Max.
P.C.E. (O.C) Min.
APPARENT POROSITY (%) Max
CCS (Kg/cm2)Min.
RUL (Ta°C) Min.
Bulk Density (gm/cc)Min.
Plc (%) Max.
APPLICATIONS AREA
NA is 6 30 2.5 29 26 200 1300 2.00 ±1.0 at 1300°C/2 hrs For Chimney Flue,Boiler,Sugar Industry.
NA Specialy 34 2.5 30 25 250 1350 2.05 ±1.0 at 1350°C/2 hrs For Chimney Flue,cupola,Steel Faundry.
NA 40 40 2.8 32 24 300 1400 2.15 ±1.0 at 1400 °C/2 hrs For Cment preheater cyclone, Silicate Furnace & other moderate heatduty application.
NA 45 45 3.0 32 24 350 1400 2.20 ±1.0 at 1400 °C/2 hrs For Cment preheater cyclone, Silicate Furnace & other moderate heatduty application.
NA 40 S
40 2.0 33 22 300 1420 2.20 ±75 at 1450 °C/2 hrs Special purpose low iron high duty bricks for cement preheater cyclone
NA 45 S 45 2.0 33 21 350 1440 2.25 ±0.8 at 1450 °C/2 hrs Special purpose low iron high duty bricks for cement preheater cyclone,Chemical plant, sulpher furnace.
NA 42 42 1.5 34 18 500 1470 2.30 ±0.5 at 1450 °C/2 hrs Low porosity dense bricks for anode baking furnace & blast furnace.
NA 50 50 3.0 33 24 400 1400 2.30 ±1.0 at 1450 °C/2 hrs For Cement Klin preheating zone reheating furnace wall.
NA 55 55 3.5 35 24 400 1410 2.45 ±1.5 at 1450 °C/2 hrs For Cement Klin preheating zone reheating furnace wall.
Ktw 60 60 3.5 35 24 450 1450 2.50 ±2.0 at 1450 °C/2 hrs Calcination zone of cement rotary klin, copper melting furnace.
Ktw 70 70 3.5 36 23 550 1460 2.65 ±2.5 at 1500 °C/2 hrs Reheating furnace wall, burning zone of cement rotary klin, ladle backup.