Table IX. 

 Determination of elastic limit and coefficient of elasticity in com- 

 pression of nickel steel " E." 



Length upon which contractions were measured =10" 

 Diameter =1" Area = 0'7854 square inches. 



Load in 



Headings ] 



u T,obo: mm - 



Mean 

 Compression 



.'._ Differences per 



1,000 fts. 



Top. 



Bottom. 



1x1 10^00 mm - 



1,000 fts. 



1 



o-oo 



o-oo 



o-oo 



1-00 



2 



0-50 



0-50 



1-00 



0-98 



3 



098 



1-00 



1-98 



1-02 



4 



1-50 



1-50 



300 



1-00 



5 



2-00 



2-00 



400 



1-00 



6 



250 



250 



5-00 



1-00 



7 



3-00 



3-00 



600 



1-00 



8 



3-50 



350 



7-00 



1-00 



9 



398 



4-02 



8-00 



0-92 



10 



440 



4-52 



892 



0-94 



11 



4-86 



5-00 



9-86 



1-01 



12 



535 



5-52 



10-87 



1-02 



13 



585 



601 



11-89 



095 



14 



6-32 



6-52 



12-84 



098 



15 



6-80 



702 



1382 



0-99 



16 



7'30 



7-51 



14-81 



1-00 



17 



7-80 



8-01 



15-81 



0-98 



18 



8-29 



8-50 



16-79 



1-01 



19 



8-80 



900 



1780 



100 



20 



9-27 



9-53 



1880 



0-96 



21 



973 



1003 



19-76 



f Limit~of 

 1-06 Elasticity 



22 



1026 



10-56 



20-82 



1-04 



23 



10-78 



1108 



21-86 



1-08 



24 



11-30 



11*64 



22-94 



1*03 Specimen was 



25 



11-81 



12-16 



23-97 



permanently bent 



21.000 



t Limit of Elasticity = 21,000 lbs. or ^^ = 26,750 lbs. per sq. in. 



(11-99 tons) 

 Coefficient of Elasticity = 25,460,000 lbs. per sq. in. 

 = 11,360 



