Abstract
This paper describes the high-temperature characteristics of a carbon-molybdenum steel which differs from those now in general use in that it contains 1.5 per cent rather than from 0.5 to 1 per cent molybdenum. On the basis of standard creep tests and comparative constant-loading tests, it is shown that the increase in molybdenum content has greatly improved the load-carrying ability of the steel, especially at the higher temperatures.
Since the oxidation and corrosion resistance of this steel is no better than that of plain carbon steels, advantage cannot be taken of its improved load-carrying ability unless its surface is protected from attack. Accordingly, this analysis is considered only in a calorized condition. The present-day calorizing process is briefly described and certain proposed applications for this calorized steel are discussed.
