Features:
1) Fire clay for pour bottom bricks:
a) Al2O3 (%): 40
b) Fe2O3 (%): 2.5
c) Porosity (%): 26
d) Bulk density (g/cm³): 2.0
e) Cold crushing strength (MPa): 20
f) Refractoriness under load (0.2MPa, T2,
oC): 1,350
g) Reheat liner change (1,350
oCX2hrs %): ±0.5
2) Alumina for pour bottom bricks:
a) Al2O3 (%): 60
b) Fe2O3 (%): 2.5
c) Porosity (%): 28
d) Bulk density (g/cm³): 2.2
e) Cold crushing strength (MPa): 25
f) Refractoriness under load (0.2MPa, T2,
oC): 1,450
g) Reheat liner change (1,350
oCX2hrs %): ±0.5
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