Refractory Technology
Fireclay bricks are not used in the

Coke oven regenerators
Beehive coke oven
Combustion chamber of B.F. stoves
By-product coke oven walls

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Refractory Technology
Magnesite chrome refractories

Have very low thermal co-efficient of expansion
Are not at all resistant to the corrosive action of iron oxide
Have very low (50 kg/cm² ) cold crushing strength (C.C.S.), and can not be used in metalcase form
Have better spalling resistance than chrome magnesite refractories

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