MATERIALS 

 CAST CARBON STEELS (Conlinued) 



41 



Courtesy of American Foundrymen's Association. 



'^ The letter B designates Brinell hardness. 



^ Numbers in parentheses following the temperature indicate number of hours at temperature. 



•^ Values in m.-kg. per sq. cm. 



'^ Specimen 30 X 30 X 160 mm. Cylindrical notch 4 mm. in diameter, 15 mm. deep. Values in meter-kilograms per square centimeter. 



< Izod, ft.-lb. 



/ Charpy, ft.-lb. 



i' Fremont, kg.-m. 



