Abstract:
Fire clay refractories are commonest
of all refractories. Fire clay refractories
containing less than 40% alumina are
classified into: (1) Medium heat duty, and
(2) High heat duty fire clay refractories
with alumina content of over 30% but
below 40%. Fireclay refractories are
made into bricks and blocks of various
standard sizes and shapes and also as
per specific requirement of user industries.