AN INVESTIGATION INTO 
Cast Iron. 
Size 
1.034 X 1.006 
1.034 
1.006 
Area 
1.041 
1.041 

E 
15,000,000 
15,000,000 

.25 
.25 

D 
10,000,000 
10,000,000 

C 
6,000,000 
6,000,000 
.... 
.... 
Longitudinal compression (multiply readings 
by 4 for millionths). 
Lateral extension 
(millionths). 
Load (in pounds). 
Side 
P. 
Side 
U. 
Side 
P. 
Side 
U. 
I OOO 

19 
40 
60 
80 
100 
120 
140 
1 60 
145 
123 
104 
85 
63 
44 
20 
O 

20 
11 
78 
100 
1 20 
143 
1 60 
143 
125 
no 
90 
63 
40 
21 


12 
26 
41 
56 
72 
86 
102 
119 
1 06 
90 
76 
60 
44 
30 
13 
6 
1 

II 
21 
32 
48 
65 
83 
99 
116 
1 08 
85 
70 
60 
50 
39 
21 
9 
A OOO 
5 ooo 
6 ooo 
7 OOO . 
8 ooo 
9 ooo 
8 ooo 
7 ooo 
6 ooo 
5 ooo 
A. OOO 
7 OOO 
2 OOO 
I OOO 
9000 
, 7000 
5000 
3OOO 
1000$ 
O 4O 80 I2O 160 200 
S TRAIN 
FIG. 3. Cast iron. Stress-strain curves. 
