Refractories for fired boilers of marine vessels
Refractories for Fired Boilers of Marine Vessels
Technical characteristics
Rate for grade | |
---|---|
ShST | |
GOST 10352-80 rev.1 | |
Mass fraction, %: Al2O3, minimum |
38 |
Compressive strength, N/mm2, minimum - for straight bricks - for shaped bricks with maximum weight of 20 kg |
20 15 |
Open porosity, %, maximum - for straight bricks - for shaped bricks with maximum weight of 20 kg |
24 26 |
Permanent linear shrinkage when heating at temperature of 1400°С, %, with aging within 2 hours, maximum | 0,4 |
Refractoriness, °С, minimum | 1730 |
Thermal shock resistance, heat cycles (1300 °С – water), minimum | 10 |
Apparent density, g/cm3, withing limits of | 1,9-2,0 |