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Refractories for Electric Arc Furnaces/Continuous Casting Refractories

 The list is illustrative and does not cover the full range of products and some of the improved items which have been recently developed.

 
Electric Arc Furnace A B C D E
Al2O3 % 60 60 70 0.5 N.A.
MgO % N.A. N.A. N.A. 91 97
FC % N.A. N.A. N.A. N.A. 12
B.D. (gm/cc) 2.4 N.A. 2.6 N.A. 2.9
A.P. % 23 24 23 20 5
CCS (kg/cm2) 300 300 400 600 400
RUL (ta °C) N.A. 1450 N.A. 1600 N.A.
PLC % ±3.0 ±3.0 ±3.0 +0.5 N.A.
 (at °C/2 hrs) 1500 1500 1600 1600 N.A.
MOR (at 1400°C) (kg/cm2) N.A. N.A. N.A. N.A. 30

 

Continuous Casting Refractories A B C D E F G
Al2O3 % 45 78 85 N.A. 60 67 N.A.
C % 35 17 3 N.A. 10 27 20
ZrO2 % N.A. N.A. N.A. 95 N.A. N.A. 70
B.D. (gm/cc) 2.40 2.72 3.10 4.80 2.40 2.54 3.40
A.P. % 13 12 6 10 24 16 14
CCS (kg/cm2) 205 285 800 1000 N.A. 250 260
MOR (at 1400°C) (kg/cm2) N.A. N.A. N.A. N.A. 40 85 70
Thermal expansion (at 1000°C) N.A. N.A. N.A. N.A. N.A. 0.38 0.38

 

 

     
 
 

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