|
Item
|
Fireclay brick
|
High Alumina Brick
|
||||
|
SK32
|
SK34
|
SK35
|
SK36
|
SK37
|
SK38
|
|
|
Al2O3 (%) ≥
|
38
|
42
|
48
|
55
|
65
|
75
|
|
Refractoriness (oC) ≥
|
1670
|
1730
|
1750
|
1770
|
1790
|
1790
|
|
Refractoriness under Load, oC,0.2MPa ≥
|
1250
|
1300
|
1420
|
1470
|
1500
|
1520
|
|
Linear Change(%),oC×2h
|
1350
|
1350
|
1450
|
1500
|
1500
|
1500
|
|
-0.5~0
|
-0.5~0
|
-0.4~+0.1
|
-0.4~+0.1
|
-0.4~+0.1
|
-0.4~+0.1
|
|
|
Porosity (%)≤
|
26
|
26
|
22
|
22
|
23
|
23
|
|
Cold Crushing Strength, MPa≥
|
15
|
20
|
39.2
|
44.1
|
49
|
53.9
|
