Products for lining of hot-metal ladles

SHCHU-37

SHCHU -37U

MKRCHU-45

MKRCHU -55

MKCHS-72

GOST 15635-2015

Mass fraction, %:

Al₂O₃, no less
Fe₂O₃, no less

37
-

37
-

45
3,5

55
4

over
72
1,5

Compressive resistance, N/mm²    ,no less                  

25

30

35

35

30

Open porosity, %, no more

20

18

19

20

24

Residual changes in the sizes, %, no more, at the temperature:

1400 °C 

0,4

0,2

0,4

up -0,4 to +1,0

-

1600 °C 

-

-

-

-

1,0

Thermal resistance, thermal cycling , no less

-

-

4

4

-

Refractory property, °C, no low than

1730

1730

1730

1750

-

Onset temperature of softening, °C, no low

-

-

1400

-

1500

a

a₁

б

в

_в1

1

210

176

230

80 

- 

for a working lining of a cylindrical part of ladles with an inside radius of laying, mm

2

230

198

230

80

-

using one product number

1130 - 1290

1350 - 1540

using two product numbers

1290 - 1350

3

77

-

230

113

95

for a working lining of a bumped head with an inside radius of laying 1150 – 2150mm