Fireclay Refractory brick SK-34
Features
1. Low bulk density, low thermal conductivity, good thermal insulation performance.
2. Refractory category allow direct contact of fire, suitable ofr various atmosphere
3. Good integrity with furnace lining, long service life, easy operation, could be shaped freely
Typical Applications
1. Furnaces of metallurgy industry, heat treatment furnace.
2. Furnaces of chemical industry and construction industry.
3. Furnace of incineration of garbage, recirculating fluidized bed furnace.
Standard sizing: 230 X 114 X 65 mm others up to the client
Refractory brick SK-34
Item Standard
AI2O3(%) 38-40
Fe2O3 (%) 1.5-2.5
Refractoriness (SK) 34
Refractoriness under load, 0.2MPa, Ta, (° C) 1350
Porosity (% 19-23
Bulk density (g/cm³ ) 2.10-2.20
Cold crushing strength (MPa) 25-35
Thermal expansion at 1000° C (%) 0.6
|
Item/Grade |
Fire Clay Brick |
High Alumina Brick |
|
SK-30 |
SK-32 |
SK-34 |
SK-35 |
SK-36 |
SK-37 |
SK-38 |
SK-40 |
|
AL 2 O 3 % (≥) |
30 |
35 |
38 |
45 |
55 |
65 |
70 |
82 |
|
Fe 2 O 3 % (≤) |
2.5 |
2.5 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
|
Refractoriness(SK) |
30 |
32 |
34 |
35 |
36 |
37 |
38 |
40 |
|
Refractoriness under load, 0.2MPa, °C (≥) |
1250 |
1300 |
1360 |
1420 |
1450 |
1480 |
1530 |
1600 |
|
Apparent porosity (%) |
22-26 |
22-26 |
20-24 |
20-22 |
20-23 |
20-23 |
20-22 |
18-20 |
|
Bulk density (g/cm³) |
1.9-2.0 |
1.95-2.1 |
2.1-2.2 |
2.15-2.22 |
2.25-2.4 |
2.3-2.5 |
2.4-2.6 |
2.5-2.7 |
|
Cold crushing strength ,MPa (≥) |
20 |
25 |
30 |
40 |
45 |
50 |
60 |
70 |