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Neutral Refractory

Fire Clay Bricks

Quality KA 38 FC A KA 38 FC B KA 35 FC A KA 35 FC B
Physical Properties Refractoriness (SK) 34 34 32 32
AP (%) 24 28 26 28
BD (g/cm3) 2.15 2.1 2.1 2.05
CCS (kg/cm2) 200 150 200 150
TE (%) @ 1000℃ 0.5 0.5 0.5 0.5
PLC (%) @ 1350℃x2hrs - - ±0.5 ±0.5
@ 1400℃x2hrs +0.1~ -0.5 +0.1~ -0.5 - -
RUL (2kg/cm2,T2℃) 1350 1300 1350 1280
Chemical Properties (%) Al2O3 38 38 35 35
Fe2O3 2.5 2.5 2.5 2.5
 Main Application Blast furnaces, Hot Blast Stove, Incinerators & Glass furnaces

Quality KA 44 FC A KA 40 FC A KA 36 FC A KA 44 FC B KA 40 FC B KA 36 FC B
Physical Properties Refractoriness (SK) 35 34 32 35 34 32
AP (%) 18 18 18 20 20 20
BD (g/cm3) 2.3 2.25 2.15 2.3 2.25 2.15
CCS (kg/cm2) 500 450 350 400 350 250
TE (%) @ 1000℃ 0.6 0.5 0.5 0.55 0.5 0.5
PLC (%) @ 1400℃x2hrs - ±0.2 ±0.2 - ±0.2 ±0.2
@ 1500℃x2hrs ±0.2 - - ±0.2 - -
RUL (2kg/cm2,T2℃) 1500 1480 1400 1450 1400 1350
Chemical Properties (%) Al2O3 44 40 36 44 40 36
Fe2O3 2 2 2 2 2 2
Main Application Blast furnaces, Hot Blast Stove, Incinerators & Glass furnaces

High Alumina Bricks

Quality KA 80 HA A KA 70 HA A KA 60 HA A KA 50 HA A KA 45 HA
Physical Properties Refractoriness (SK) 39 38 37 36 35
AP (%) 24 24 24 25 26
BD (g/cm3) 2.65 2.5 2.4 2.3 2.2
CCS (kg/cm2) 350 300 300 250 200
TE (%) @ 1000℃ 0.7 0.7 0.6 0.6 0.5
PLC (%) @ 1400℃x2hrs - - - - ±0.3
@ 1500℃x2hrs ±0.3 ±0.3 ±0.3 ±0.3 -
RUL (2kg/cm2,T2℃) 1700 1550 1480 1450 1400
Chemical Properties (%) Al2O3 80 70 60 50 45
Fe2O3 2 2 2.5 2.5 2.5
Main Application Various Industiral Furnaces

Quality KA 99 HA KA 83 HA KA 92 HA KA 90 HA KA 85 HA A
Physical Properties Refractoriness (SK) 42 42 40 40 40
AP (%) 17 18 18 19 19
BD (g/cm3) 3.25 3.25 3.2 3 2.85
CCS (kg/cm2) 900 1000 800 700 700
TE (%) @ 1000℃ 0.8 0.77 0.7 0.7 0.7
PLC (%) @ 1600℃x2hrs     0 0 0
@ 1650oCx2hrs 0 0 - - -
RUL (2kg/cm2,T2℃) 1700 1700 1700 1700 1700
Chemical Properties (%) Al2O3 99 83 92 90 85
Fe2O3 0.1 0.2 0.8 0.8 1
Cr2O3 - 10 - - -
Main Application Various Industrial Furnaces

Quality KA 75 HA KA 85 HA B KA 70 HA B KA 80 HA B KA 60 HA B KA 50 HA B
Physical Properties Refractoriness (SK) 39 38 38 37 37 36
AP (%) 20 17 20 17 20 20
BD (g/cm3) 2.7 2.85 2.6 2.8 2.5 2.35
CCS (kg/cm2) 600 1,200 550 1,000 450 400
TE (%) @ 1000℃ 0.7 0.7 0.7 0.7 0.65 0.6
PLC (%) @ 1600℃x2hrs ± 0.2 0 ± 0.2 0 ± 0.3 ± 0.3
@ 1650oCx2hrs - - - - - -
RUL (2kg/cm2,T2℃) 1680 1600 1650 1600 1600 1550
Chemical Properties (%) Al2O3 75 85 70 80 60 50
Fe2O3 1 1 1.5 1 2 2
Cr2O3 - - - - - -
Main Application Various Industrial Furnaces

Silicon Carbide (SiC) Bricks

Quality KA 88 SIC KA 85 SIC KA 95 SIC KA 91 SIC
Physical Properties AP (%) 17 18 13 17
BD (g/cm3) 2.6 2.55 2.6 2.55
CCS (kg/cm2) 800 600 1000 1000
TE (%) @ 1000℃ 0.5 0.5 0.45 0.45
TC (kcal/m.hr.℃) @ 350℃ 14.5 14.4 15 15
Max Service Temp (℃) 1470 1450 1600 1550
RUL (2kg/cm2,T2℃) 1600 1550 1700 1700
Spalling Resistance(20cycles at 1000℃) 1470 1450 1600 1550
Chemical Properties (%) SiC 88 85 95 91
Si3N4 - - - 3
Main Application Cupola Lining, Incinerator Nonferrous Metal Melting Furnace

Alumina Chrome (Al2O3 - Cr2O3) Bricks

Quality KA 88 ALCR KA 83 ALCR
Physical Properties Refractoriness (SK) 42 42
AP (%) 17 18
BD (g/cm3) 3.3 3.25
CCS (kg/cm2) 1000 1000
TE (%) @ 1000℃ 0.79 0.77
PLC (%) @ 1650oCx2hrs 0 0
RUL (2kg/cm2,T2℃) 1700 1700
Chemical Properties (%) Al2O3 88 83
Fe2O3 0.2 0.2
Cr2O3 5 10
Main Application Carbon Reactor
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