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