PROPERTIES AND USES OF NICKEL STEEL. 695 
Table IT. 
Determination of the elastic limit and coefficient of 
elasticity in tension of nickel steel “‘T ”’ (medium). 
Length upon which the elongations were measured 
= 150mm. (6in.) 
Diameter = 0°609" Area = 0°2911 square inches. 
Load in’ | __ 
1000 lbs. Top 
0 0° 
1 QO: 
2 
3 2: 
4 3° 
5 4: 
6 4: 
7 5° 
8 | 6° 
9 | 7 
10 | 8° 
11 9 
12 10 
13 11 
14 12 
15 13 
16 | 14 
/ 15 
18 "116 
19 18 
20 20° 
+ Limit of Elasticity = 15,500 lbs. or 
Ll: 
00 
48 
00 
Readings in 5,45mm. 
TNS | Top. | Bottom. finyadsomm.| 1000 PR Bottom. 
ie 
Vik 
8: 
00 
65 
70 
Mean . 
Extension coe Pe 
iINnzodooMmM. = 
7°00 
1°13 
8°13 
1°87 
10:00 
y-9t 
11°91 
1:90 
13°81 
1°92 
15°73 
1-74 
17°47 
1:87 
19°34 
1°88 
21°22 
1°87 
23°09 
1°89 
24°98 
1°64 
26°62 
1°88 
28°50 
1°80 
30°30 
1:90 
32:20 
1-90 
34°10 + LimitZof 
2°16 Elasticity 
36°26 
2°11 
38°37 
2°19 
40°56 
2°46 
43°02 
4°23 
Pte Ci eae ee a his a 
15,500 : 
ens 53,200 lbs. per sq. in. 
(23°75 tons) 
Coefficient of Elasticity = 27,120,000 lbs. per sq. in. 
= 12,110 tons per sq. in. 
