refractory silica brick for hot blast stove

Useful Silica Bricks for Hot-Blast Stove
Mark RG-95
Item Normalized Value Actual Value
Chemical Composition W(SiO2)/ % = 95 95
W(Al2O3)/ % = 1.0 1.0
W(Fe2O3)/ % = 1.3 1.2
W(CaO)/ % = — 2.0
W(K2O+Na2O)/ % = —
PhysicalIndex apprent porosity % = 22 21
density of dust particle g/cm³ = 2.32 2.31
compression strengthMpa = 45 48
linear changes on reheating(1450? *2h) % 0~0.2
softening temperature (point) under load 0.2Mpa? = 1650
Thermal Expansivity(at 1000)? % = 1.25 1.25
creep rate(1450? *25h) % = 0.8 0.8
residual quartz % = 1.0 1.0

refractory silica brick for hot blast stove