Main Data

See also

Refractories for hot-metal ladle lining

Bricks are intended for hot-metal ladle lining and other thermal units.

Technical characteristics

 Rate for grade
  ShChU-37 ShChU-37U MKRCHU-45 MKRCHU-55 MKCHS-72
GOST 15635-2015

Mass fraction, %:

Al2O3, minimum
Fe2O3. maximum



37
-



37
-



45
3,5

55
4
over
72
1,5
Compressive strength, N/mm2, minimum 25 30 35 35 30
Open porosity, %, maximum 20 18 19 20 24
Residual variation of dimensions when heating, %, maximum 
at 1400 °С
at 1600 °С 


0,4
-


0,2
-


0,4
-


-0,4 to +1,0
-

-
1,0
Thermal shock, t/cm, minimum - - 4 4 -
Refractoriness, °С, minimum 1730 1730 1730 1750 -
Temperature of initial softening, °С, minimum -  - 1400 -  1500

Form and dimensions

Number of brickDimensions, mmApplication
  a a1 б в в1   
1 210 176 230 80  -  for working lining of cylindrical part of ladles with inside laying radius, mm
2 230 198 230 80 -
      

when one number of item is used

1130 - 1290

1350 - 1540

when two numbers of items are used

1290 - 1350

 
3 77 - 230 113 95 for working lining of spherical bottom with inside laying radius of 1150-2150 mm
Number of brickDimensions, mmApplication
  a a1 б в в1 г г1   
4 65 54 230 113  95  - -

for working lining of spherical bottom with inside laying radius of 1150-2150 mm

the same, when laying strong bottom
5 65 50 300 113 89 - -
6 65  54  230  113  95  45 38

for working lining of spherical bottom with inside laying radius of 1150-2150 mm

 

the same, when laying strong bottom
7 65 54 230 113 95 55 46
8 65 54 230 113 95 60 50
9 65 50 300 113 89 55 43
Number of brickDimensions, mmApplication
  б r r1   
10 115 261,5  239  for cantral part of spherical bottom with inside laying radius of 1150-2150 mm
11 115 284 261,5