SOME PHYSICAL PROPERTIES OF NICKEL STEEL. 



159 



Table III. 



Determination of the elastic limit and coefficient of elasticity in 

 tension of nickel steel "E" (non-rusting). 



Length upon which the elongations were measured = 150 mm. (6 in.) 



Diameter = 06075" Area = 02899 square inches. 



Load in 



Reading's in -5 ^jmin. 



Mean 

 Extension 



* 10:000 mm - 



Differences per i 



1,000 fts. 



Top. 



Bottom. 



1,000 lbs. l 







o-oo 



5-00 



5-00 



0-08 



1 



-002 



510 



5-08 



2-02 



2 



-i-0-72 



638 



7-10 



2-16 



3 



1-76 



7-50 



9-26 



2-04 



4 



2-82 



8-48 



11-30 



2-08 



5 



392 



9-46 



13-38 



213 



6 



5-08 



1043 



15-51 



2-11 



7 



6-22 



11-40 



17-62 



2-11 



8 



7-34 



12-39 



19-73 



226 f Limit of 



9 



8-52 



13-47 



21-99 



Elasticity 



2-78 



10 



9-89 



14-88 



24-77 



4-03 



11 



11-85 



16-95 



28-80 





f Limit of Elasticity = 8,500 lbs. or ' n = 29,350 lbs. per sq. in. 



2899 (13-1 tons) 



Coefficient of Elasticity = 26,340,000 lbs. per sq. in. 



- 11,760 tons per sq. in. 



