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PJSC «Belokamensky Refractories" – is Ukrainian biggest aluminium silicate refractory materials manufacturer. Aluminium silicate refractory materials are produced from technical alumina (Al2O3) and silica (SiO2) by semi-dry (moistened to 6-9%) powder ramming using the hydraulic press with further firing during 1250-1450° C temperature (if high alumina content – to 1750° C) in continuous tunnel oven.

Aluminium silicate refractory materials are produced from technical alumina (Al2O3) and silica (SiO2) by semi-dry (moistened to 6-9%) powder ramming using the hydraulic press with further firing during 1250-1450° C temperature (if high alumina content – to 1750° C) in continuous tunnel oven.

Semi-acid (up to 28% of Al2O3, 65-85% SiO2)

Chamotte (28-45% Al2O3)

High-alumina (mote than 45% Al2O3)

Mullit siliate (45-62% Al2O3)

mullit (62-72% Al2O3)

Mullit corundum (72-90% Al2O3)

Corundum (from 90 to 98% of Al2O3)

Different types and dimensions of production: Simple shaped bricks, plates, pipes, small and big goods of irregular shape, according to customer's drawings, etc. Physical and chemical properties of aluminum silicate materials are of various types and listed below and depend of the types of used material and processing.


High refractory goods corundum of general purpose, grade KS-95 GOST 24704-94

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature , С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
KS-95 95 0,6 24 (28) 40 (20) 1640 - - -

High refractory goods mullite corundum of general purpose, grade MKS-90 GOST 24704-94

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MKS-90 90 0,8 24 (28) 50 (20) 1660 - - +1,0

High refractory goods mullite corundum of general purpose, grade MKS-72 GOST 24704-94

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MKS-72 72 1,5 24 30 1500 - - 1,0

High refractory goods mullite corundum, dense of general purpose, grade MKS-72 GOST 24704-94

Grade Mass fraction,% Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MKP-72 72 1,5 16 (18) 80 (30) 1550 - - 1,0

High refractory goods mullite of general purpose, grade MLS-62 GOST 24704-94

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MLS-62 62 1,5 24 25 1450 - 0,4 -

High refractory goods mullite, compressed, of general purpose, grade MLU-62 GOST 24704-94

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MLU-62 62 1,5 17 (19) 60 (25) 1500 - 0,3 -

Refractory goods mullite silica, of general purpose, grade MKRS-45 GOST 24704-94

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MKRS-45 45 1,8 24 20 1400 0,5 - -

Refractory goods mullite silica, compressed, of general purpose, grade MKRU-45 GOST 24704-94

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MKRU-45 45 1,8 18 (20) 40 (25) 1450 0,4 - -

Refractory goods, mullite corundum, Grade MKV-72 for air heaters, hot blowing air ducts, fittings and lances of blast furnaces, GOST 20901-75

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MKV-72 72 1,2 21 (24) 50 (30) 1550 - - 0,8

Refractory goods, mullite corundum, Grade MKVN-72 for air heaters, hot blowing air ducts, fittings and lances of blast furnaces, GOST 20901-75

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MKVN-72 72 1,1 23 40 1580 - - 0,8

Refractory goods, mullite corundum, Grade MKRV-50 for air heaters, hot blowing air ducts, fittings and lances of blast furnaces, GOST 20901-75

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MKRV-50 50 1,4 21 (23) 40 (30) 1540 - 0,4 -

For cupola refractory lining, Grade MKVG-72, GOST 3272-2002

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MKVG-72 72 1,5 24 35 1500 - - +1,0

For cupola refractory lining, Grade MKVG-45, GOST 3272-2002

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MKRVG-45 45 3,5 24 35 1500 - - +1,0

Refractories mullite silica, ladle, compressed, Grade MKRKU-45, GOST 5341-98

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MKRKU-45 45 3,5 18 35 1400 0,4 - -

Refractories mullite silica, ladle, dense, Grade MKRKP-45, GOST 5341-98

Grade Mass fraction, % Opened porosity,% not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MKRKP-45 45 1,3 16 40 1400 0,2 - -

Refractory lining materials, mullite corundum, high fire resistant, for rotating furnaces lining, Grade MKC GOST 21436-2004

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MKC 72 - 24 30 1500 - - 1

Refractory lining materials, mullite corundum, high fire resistant, for rotating furnaces lining, Grade MKRC GOST 21436-2004

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MKRC 45 - 22 30 1400 0,5 - -

Refractory lining materials, mullite, for rotating furnaces lining, Grade MLC GOST 21436-2004

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MLC 62 - 24 25 1450 - 0,4 -

High-resistance refractory matrials, mullite, for blast furnace hearth bottom lining, Grade MLLD-63, GOST 10381-94

Grade Mass fraction, % Opened porosity, %, not more than Strength limit during compression, N/mm², not less than Start softening temp,С° , not less than Additional linear shrinkage,%, not more during temperature, С°
Al²O³, over Fe²O³, not more than 1400 1500 1600
MLLD-63 63 1,2 16 30 1500 - - 0,2
 
Main Production High-aluminous refractories