STRENGTH OF STEEL. 



373 



It has been stated that the most remarkable effect 

 which the presence of nickel produces is to increase the 

 ratio of elastic limit to ultimate strength. This is shown 

 in the following table taken from Rudeloff 's experiments : 



EFFECT OF NICKEL ON THE RATIO OF ELASTIC LIMIT 

 TO ULTIMATE STRENGTH. 



In the above alloys the nickel was added to a steel 

 very low in carbon. This is shown graphically in the 

 following diagram, Fig. 182 : 



100 



80 



60 



5 40 



20 



Increasing Amount of Nickel. 

 FIG. 182. SHOWING EFFECT OF NICKEL ON THE STRENGTH OF STEEL 



