Abstract
In view of the fact that recent apecifications of ateel aeem to specify in generally not only mechanical properties but also chemical compositions of steel; Anthor researched in practically the effect of carbon and manganese upon the mechanical testing of our basic open-hearth steel as rolled. The results of the present investigation may be surmmarized as follows.
The effect of manganese on the physical properties of steel increases in propor-tionately to carbon content.
The relations between chemical compositions and physical properties of our basic open-hearth steel as rolled are able to express by the following empirical formulas.
