Abstract
Based on a rapid analytical procedure for hydrogen and a reliable sampling method for obtaining specimens from a molten steel bath, a series of three acid open hearth, two basic open hearth, and seven basic electric furnace heats were examined through the refining period, at tap, and in some instances during pouring for variations in hydrogen content. Experiments and calculations are presented to show that the measured hydrogen content is the result of two competing processes, one of which drives hydrogen into the metal from the gas and slag phases and the other eliminating hydrogen through the CO boil. Hydrogen absorption rates are calculated to show the differences which exist among the acid and basic open hearth processes and the basic electric process.
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