702 _ PROCEEDINGS OF SECTION H. 
Table VIII. 
Determination of the elastic limit and coefficient of 
elasticity in compression of nickel steel “ T.” 
Length upon which contractions were measured = 10/7 
Diameter = 1” Area = 0°7854. 
chaos Soe 
Load in Readings in-goog tm eee Differences per 
1000 Ibs. | Compression 2000 Ibs 
Top. Bottom. |{in,>5455mm. : 
5) 2°10 5°74 7°84 
| 177 
7 10s) 6°51 9°61 
| 1-69 
9 Gi = | #729 11:30 
1°75 
11 4:96 8°09 13°05 
1:74 
13 5:89 | 890 14-79 
1°76 
15 6°83 9°72 16°55 
: 179 
17 7°76 10°58 18°34 
1°72 
19 861 11°45 20:06 
1:78 
21 9 52 12°32 21°84 
1:76 
23 10°41 13°19 23°60 + Limit of 
1:80 Elasticity 
25 11°31 14°09 25°40 
1°78 
27 12:18 15 00 27:18 
1°80 
29 13:08 15°90 28°98 
| 1:82 
31 14:00 16°80 30°80 
1°83 
33 14°91 17°72 32°63 
1:92 
35 15°88 18°67 34°55 
1:86 
37 16°81 19:60 36°41 
1°93 
39 WA) 20°55 38°34 
2:02 
4] 18°76 21:60 40°36 
2°18 
43 19°85 22°69 42°54 
2°18 
45 20°96 23°76 44°72 
+ Limit of Elasticity = 23,000 lbs. or oe 29,300 lbs. per sq. in. 
0°7854 (13'1 tons) 
Coefficient of Elasticity = 28,170,000 Ibs. per square inch 
= 12,570 tons per square inch. 
