Precast blocks and castables for EFA roof
The product, featured with good high temperature strength, good spalling resistance, good slag resistance, good workability, easy assembly and long service life, are suitable for on site casting the working lining for triangular area of UHP EAF and precasting the furnace roof cover. The products have been used in triangular areas of UHP EAF with capacity of 50t, 75t, 90t and 100t in China with the service life of 100-420 heats which can be compared with imported products.