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Pouring/Purging 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.
 
Pouring Refractories A B C
Al2O3 % 40 39 85
ZrO2 % N.A. N.A. 10
B.D. (gm/cc) 2.0 N.A. 2.7
A.P. % 24 18 N.A.
CCS (kg/cm2) N.A. 400 700
RUL (ta °C) N.A. 1400 N.A.
PLC % (at 1500°C/2 hrs) ±0.5 ±0.5 N.A.
MOR (at 1350°C) (kg/cm2) N.A. N.A. 30

 

Gas Purging Refractories A B C D
Al2O3 % 85 N.A. 90 96
MgO % N.A. 85 6 N.A.
A.P. % 27-35 25-30 15 27
B.D. (gm/cc) N.A. N.A. 2.95 2.90
CCS (kg/cm2) 400 200 550 600
Gas permeability (npm) 300 300 N.A. N.A.
PLC % (at 1600°C/5 hrs) N.A. N.A. N.A. ±0.3

 

 
     
 
 

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