Interest in the elevated-temperature properties of the relatively new engineering metal, ductile cast iron, has prompted the gathering together of data (1 to 5) on the subject and the correlation of them on a uniform basis. In correlating the values obtained by the several laboratories on different melts of somewhat different compositions, use is made of the equation applied originally in the evaluation of effects of time and temperature in the tempering of steel and later adapted by Larson and Miller (6) to the determination of stress rupture and creep values for various conditions of temperature, load, and time from data which had been obtained under limited sets of conditions. The paper demonstrates the application of the Larson-Miller method.

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