107
PIVOT SOCKETS--15-PO UNDER GUN MOUNTS.
No. 7232.
Marks, 2”p1s'15 Diameter, ".505.
Sectional area, .20 square inch. Gauged length, 2.
emarks.
Successive
permanent
set.
Permanent set.
Applied loads per squarse inch.	Elongation per inch.	Successive elongation per inch.
Pounds.	Inch.	Inch.
1,000	0.	0.
5,000	.00005	.00005
10,000	.00020	.00015
20,000	.00050	.00030
25,000	.00070	.00020
28,000	.00085	.00015
29,000	. 00095	.00010
30,000	. 00775	. 00680
31,000	. 00875	.00100
32,000	.00965	.00090
33,000	.01065	.00100
34,000	.01175	.00110
64,850		
		
Initial load.
Elastic limit.
Tensile strength.
Inch.
0.
0.
Inch.
0.
0.
General summary.
......................pounds..	64,850
.........................do...	29,000
........................inch..	.1050
.........................do...	.00095
.........................do...	.035
............................... 132
..................... ".68 from neck
granular 80 per cent, silky 20 per cent .......................... ".11* ".10
Tensile strength per square inch of original section....
Elastic limit per square inch of original section.......
Elongation per inch after rupture.......................
Elongation per inch under strain at elastic limit.......
Reduction in diameter at point of rupture...............
Reduction in area after rupture, per cent of original section.
Position of rupture.....................................
Character of broken surface.............................
Elongation of inch sections.............................
No. 7233.
Marks, ps°i5 Diameter, ".505.
Sectional area, .20 square inch. Gauged length, 2".
Applied loads per square inch.	Elongation per inch.	Successive elongation per inch.	Permanent set.	Successive permanent set.	Remarks.
Pounds. 1,000 5,000 10,000 20,000 30.000 32.000 33.000 34.000 35.000 36.000 37.000 38.000 69,950	Inch. 0. .00005 .00020 .00055 .00100 .00110 .00115 . 00985 .01050 .01150 .01250 . 01375	Inch. 0. .00005 .00015 .00035 .00045 . 00010 .00005 . 00870 .00065 .00100 .00100 .00125	Inch. 0. 0.	Inch. 0. 0.	Initial load. Elastic limit. Tensile strength.
					
						
					
					
					
					
					
					
					
					
					
Generals ummary.
.....................pounds.. 69,950
..־......................do... 33,000
........................inch.. .1600
.........................do... .00115
.........................do...	.015
............................. 16.9
..................... 110 .״ from neck
granular, silky spot at circumference
*17.״ .15.״ .........................
Tensile strength per square inch of original section....
Elastic limit per square inch of original section.......
Elongation per inch after rupture..........................
Elongation per inch under strain at elastic limit.......
Reduction in diameter at point of rupture...............
Reduction in area after rupture, per cent of original section
Position of rupture.....................................
Character of broken surface.............................
Elongation of inch sections................................