STRENGTH OF STEEL 



357 



10 20 30 40 50 



Loads. Tons per square inch. 

 FIG. 173. TENSION LOAD-STRAIN DIAGRAMS FOR STEEL 



A. Lo-.v carbon lir steel. 



B. Annealed tool steel. 1 inline 



C. Unaimea'ecl tool steel. J" JO ' 



FIG. 179. 



A. HK'h rarbun steel. B. Wild 



