|
Item
|
99BA
|
90BA
|
|
Max service temperature? ??????????℃ ?????
|
1750
|
1750
|
|
Bulk Density ?????????????????????g/cm3
|
1.55-1.8(±0.05)
|
1.5-1.9(±0.05)
|
|
Cold Crush Strength??????????????? Mpa
|
≥12
|
≥15
|
|
Thermal Conductivity(Average 800℃)? W/m.k?
|
0.75
|
0.6
|
|
Refractoriness under load(0.1MPa,0.6%)? ?℃
|
≥1700
|
≥1700
|
|
Reheating linear change(1600℃x3h)??? %
|
±0.3
|
±0.3
|
|
Thermal expansion coefficient(Room temp-1300℃)
|
~8.6
|
~8
|
|
?
|
?
|
?
|
|
Al2O3??????????????????????????? %
|
≥99
|
≥90
|
|
SiO2???????? ????????????????????%
|
≤0.3
|
≤9
|
|
Fe2O3??????????????????????????? %
|
≤0.2
|
≤0.2
|
PRODUCT>INSULATING BRICK