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Silica brick refractories for hot blast stove

$Silica brick refractories for hot blast stove$

Product Detailed

1.Good slag erosion resistance 2.High refractoriness 3.Good volume stability 4.Low creep under high temperature

SiO2 (%),≥	94	95	94
Al2O3,(%) , ≤	1.2		1.0
Fe2O3 (%), ≤	1.3	1.2	1.5
Refractoriness (°C), ≥	1710	1710	1710
Refractoriness under load 0.2 MPa (°C),≥	1650	1650	1650
True density (g/cm3), ≥	2.34	2.33	2.37
Apparent porosity(%),≤	22	19	22
Cold crushing strength (MPa), ≥	30	35	30
Residual quartez (%),≤	1		1
Linear change after reheating 1450°C×2h (%)	+0.2		+0.2

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