Silica Bricks for Hot Stoves
Specifications
Silica bricks for hot stoves feature sharp dimension,low expansion,little residual quartz, low true density.Silica bricks for hot stoves feature sharp dimension,low expansion,little residual quartz, low true density.low creep rate,good thermal shock resistance upon 600°C and high refractoriness under load, It mainly used at high temperature area include arch and upside of hot stove and upside of checker.
Item Index |
LRG-95 |
|
Standard |
Typical |
|
SiO2% |
≥95.5 |
96 |
apparent porosity:% |
≤21 |
19 |
Cold crush strength,Mpa |
≥35 |
52 |
MOR,MPa |
/ |
15.1 |
Thermal expansion coefficient(1100°C),% |
≤1.25 |
1.20 |
0.2MPa Creep rate(1500°C*50h),% |
≤0.3 |
0.25 |
Linear change after heating(1450°C*2h),% |
0-0.02 |
0 |
0.2MPa refractoriness under load, °C |
≥1660 |
1670 |
Residual quartz,%. |
≤1.0 |
0 |
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