For Insulating Bricks |
| Comments on insulation Bricks Data: |
These products are sintered refractory insulating bricks which are moulded and fired in 'High Temperature Kilns'.Since the products are manufactured from mixture of different raw materials,the properties are subject to variations as the Raw materials themselves,may vary. |
| The properties shown under typical value column are mean valves fro, quality control figures and the properties under specificatiom column are guaranteed valve of the products. |
| Nature of Bond: |
The nature of bond may be ceramic,Phosphate or chemical in nature.Where several bonds are used together,the bond is designed according to the nature of those bonds which play the dominant role in the muxture. |
| Shaping: |
All the values mentioned in the data sheet related to standard bricks only,manufactured by plastic moulding method. |
| Raw Material Base: |
This is the essential raw material conferring particular properties to the mixture. |
| Max Service Temperature: |
The temperature is based on the product being heated on one face only in a clean atmosphere.Heating on more than one face,mechanical load or the presence of corrosive dust,certain gases or slags will cause the maximum service tempetarure to alter. |
| Reversible Thermal Expansion: |
| This test is done as per IS 1528(part 19): 1991 |
| Chemical Analysis: |
| Carries out according to ASTM C573, IS 1527-1972/ XRF - PW 1480. |
| Bulk Density : Determined according to ASTM C134,DIN 51056. |
| Cold Crushing Strength:Carried out according to ASTM C93. |
| Apparent Porosity : Carried out according to ASTM C20, DIN 51065 |
| Pyrometric cone Equivalent: Carried out according to ASTM C20, DIN 51065 |
| Permanent Linear Change : Determined according to ASTM C210 |
| Thermal Conductivity : Determined as per water calormetric. |
| Specification For Shaped Bricks:The data related to molded standard bricks only. |
 |
Product |
Ins-135(C.F) |
Ins-135(H.F) |
Ins-140 |
Ins H.F.K. |
|
Insulation Bricks For 1100*CService Temp.
|
Insulation Bricks For 1350*CService Temp. |
Insulation Bricks For 1400*CService Temp.
|
Insulation Bricks For 1400*CService Temp.
|
| Nature of Bond |
Ceramic |
Ceramic |
Ceramic |
Ceramic |
| Shaping |
Plastically Moulded |
Plastically Moulded |
Plastically Moulded |
Plastically Moulded |
| General Properties |
| Raw Material Base |
Fire Clay & Kyanite |
Kyanite |
Plastic Clay |
Plastic Clay |
| Max.Service Temp. |
1100*C |
1350*C |
1400*C |
1400*C |
| Reversible Therm. Exp. |
0.50% at 1000*C |
0.50% at 1000*C |
0.50% at 1000*C |
0.50% at 1000*C |
| Chemical Analysis |
| Al2O3 |
25.70 |
31.00 |
41.90 |
40.00 |
| SiO2 |
70.00 |
64.80 |
53.10 |
52-55 |
| Fe2O3 |
1.90 |
1.90 |
1.80 |
2 |
| TiO2 |
1.85 |
1.80 |
1.3 |
- |
| CaO |
0.20 |
0.20 |
1.25 |
- |
| Physical Properties |
| Bulk Density g/cc |
0.95 |
1.05 |
0.95 |
1-1.10 |
| Apparent Porosity % |
64.00 |
65.00 |
65.00 |
60-65 |
| Cold Crushing Strength Kg/cm22 |
26 |
35 |
30 |
25-35 |
| Thermal Properties |
| Refractoriness,Orton / *C |
20-23 |
29/1659 |
32/1717 |
31/1703*C |
| PLC % After Heating 1100*C/5 hrs. |
-0.40 |
- |
- |
- |
| Thermal Conductivity |
| at 300*C HF |
0.20 |
0.24 |
0.26 |
- |
| at 500*C HF |
0.22 |
0.26 |
0.29 |
- |
| at 800*C HF |
.0.24 |
0.28 |
0.31 |
- |
| Size-Tolerance |
+1 mm |
+1 mm |
+1 mm |
+1 mm |
|
