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Welcome To Nagar Welcome
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INSULATING BRICKS:

                           

Produts NA INS - 110 NA INS - 135
NA INS - 140
NA INS - 500
NA INS - 650
NA INS - 700
NA INS - 750


 

CHEMICAL:

 
Sio2(%) 69.7 61.5 54.1 49.14 38.92 35.4 41.32
Al2 O3 (%) 24.3 33.2 41.5 43.8 53.7 55.70 51.2
Fe2 O3 (%) 2.2 1.9 1.8 0.95 1.38 1.40 1.26
Tio2 (%) 2.0 2.5 1.9 1.75 2.6 2.80 2.5
CaO + Mgo (%) 0.5 0.3 0.2 3.6 2.08 3.65 2.17
Others (%) 0.9 0.6 0.5 0.76 1.32 1.05 1.55
Max. Service Temp. (°C) 1000 1350 1400 1300 1430 1400 1430
Nature of Bond Ceramic ceramic ceramic ceramico

Ceramico

Ceramic

Ceramico

Ceramic

Ceramico

Ceramic

Raw Material Base

Fire Clay &

Mica

Fire Clay & Kyanite Fire Clay & Kyanite Synrhetic Alumina

Synthetic Alumina

Synthetic Alumina

Synthetic Alumina

 

PHYSICAL:

 
Rawersible Thermal   0.50 0.50 0.55 0.55 0.55 0.55
Expansion ( % at 1000°c)              
BD ( gm/cm3)max 0.90 1.05 1.0 0.55 0.65 0.80 0.80
AP (%) Min. 60 55 55 - - - -
CCS (kg/cm2)Min. 10 25 25 7 25 13 40
PCE (orton) Min. 20 29 30 23 30 30 31
PLC (%) Max. ±1.5 at 1000°c/5hr ±1.5 at 1350 °c/5hr ±1.5 at 1400 °c/5hr ±1.5 at 1300°c/5hr ±1.5 at 1430 °c/5hr ±1.5 at 1400 °c/5hr ±1.5 at 1430 °c/5hr
Thermal Conductivity(Kcal/m/hr/°C)              
300 °C-   0.24 0.26 0.17 0.21 0.20 0.21
500 °C-   0.26 0.29 0.18 0.23 0.23 0.24
800 °C-   0.28 0.21 0.21 0.26 0.27 0.28
Wt. of std. Bricks (approx.) (kg.) (230x114x76mm) 1.70 2.10 2.00 1.10 1.30 1.50 1.60
Application area Backup Lining fo Boiler reheating furnace Backup Glass tank furnace, Blast furnace. Backup Glass tank furnace, Blast furnace. As a backup Lining for special application As a backup Lining for special application As a backup Lining for special application As a backup Lining for special application