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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. |