Elastic and thermal properties of magnesite-chrome brick which has been used in open-hearth furnace roofs and artificially saturated with iron oxide

Conclusions

The elastic and thermal properties of roof basic refractories which have been artifically saturated with iron oxide and have served in a roof do not reveal any great changes, compared with the initial brick; hence it should be considered the importance attributed to the differences in the properties of zones of chrome-magnesite refractories, forming through the action of iron oxides as the dominating factor in cracking bricks during temperature variations is an exaggeration.