8.75 x 4.25 x 1.25
HFK-25 is an insulating fire brick which can resist temperature up to 2500F. It has optimum thermal conductivity (K) factor which provides best insulation value of the equipment. It is made from high purity refractory clays with alumina & organic filler. Organic filler burns out during firing to give a uniform, controlled pore structure.
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