135
PIVOT YOKES---15-POUNDER GUN MOUNTS.
No. 7351.
Л/Г 1 S 128
Marks, p y is 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 73.000	Inch. 0. .00010 .00035 . 00065 .00100 .00120 .00145 .00950 . 01100 .01175 . 01250	Inch. 0. .00010 .00025 . 00030 .00035 .00020 .00025 .00805 .00150 . 00075 .00075	Inch. 0. 0.	% Inch. 0. 0.	Initial load. Elastiò limit. Tensile strength.
					
					
					
					
					
					
					
					
					
					
General summary.
.....................pounds.. 73,000
.........................do... 32,000
........................inch.. .2450
.........................do... .00120
.........................do...	.085
.............................. 30.7
..................... 1".2 from neck
granular, silky spot at circumference
24.״ ,*25.״ .........................
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 plastic 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. 7361.
Marks, Iyib Diameter, ".505.
Sectional area, .20 square inch. Gauged length, 2".
Remarks.
I Initial load.
Elastic limit.
Tensile strength.
Applied loads per square inch.	Elongation per inch.	Successive elongation per inch.	Permanent set.	Successive permanent set.
Pounds. l;000 5,000 10,000 20,000 30.000 36.000 37.000 38.000 39.000 40.000 41.000 76,900	Inch. 0. .00010 . 00035 .00065 .00100 .00135 .00900 .00975 .01060 .01150 .01240	Inch. 0. .00010 .00025 .00030 .00035 .00035 . 00765 .00075 . 00085 .00090 . 00090	Inch. 0. 0.	Inch. 0. 0.
				
				
				
				
				
				
				
				
				
				
General summary.
.....................pounds.. 76,900
.........................do... 36,000
........................inch.. .1950
.........................do... .00135
.........................do...	.055
.............................. 20.5
....................... 1" from neck
granular 60 per cent, silky 40 per cent
*20.״ ,19.״ .........................
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.............................