Main Data

See also

Refractories for lining of cupola furnaces and other thermal units

Refractories for lining of cupola furnaces and other thermal units

Technical characteristics

 Rate for grade
  ShVG-30 ShVG-33 ShVG-35 MKRVG-45
 MKVG-72
GOST 3272-2002

Mass fraction, %:

Al2O3, minimum
Fe2O3, maximum

 

30
n/a

 

33
n/a

 

35
n/a

 

over 45
3,5

 

over 72
1,5
Refractoriness, °С, minimum 1670 1710 1730 1750 n/a
Compressive strength, N/mm2, minimum 20 22 30 35 35
Open porosity, %, maximum 22 21 20 19 24

Residual variation of dimensions, %, maximum at:

1400 °C
1600 °C

 

 ±0,4
n/a

 

 ±0,2
n/a

 

 ±0,2
n/a

 

 ±0,4
n/a

 

 n/a
±1,0
Temperature of initial softening, °С, minimum n/a 1400 1500

Form and dimensions

Numbers of brickDimensions, mmVolume, cm3Laying radius, mm
  a a1 б в  
Side arch brick
1 65±2 45±2 114±4 230±3 1440 257
2 65±2 55±2 114±4 230±3 1570 627
8 140±3 120±3 65±2 230±4 1940 390
Straight brick
3 230±4 - 114±3 65±2 1704 -
Numbers of brickDimensions, mmVolume, cm3Laying radius, mm
  a a1 б в  
Straight brick
4 230±4 195±4 125±3 75±2 1990 696
5 210±4 170±4 125±3 75±2 1780 531
6 230±4 205±4 150±3 80±2 2610 1230
7 265±4 227±4 150±3 80±2 2950 896