PIVOT YOKES---15-POPNDER GUN MOUNTS.
136
No. 7324.
Marks, PYf15־
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 25.000 27.000 28.000 29.000 30.000 31.000 32.000 33.000 61,900	Inch. 0. .00015 .00030 .00065 .00090 .00100 .00105 .00225 .00500 . 00600' . 00665 .00740	Inch. 0. .00C15 .00015 . 00035 . 00025 .00010 . 00005 .00120 .00275 .00100 .00065 .00075	Inch. 0. 0.	Inch. 0. 0.	Initial load. Elastic limit. Tensile strength.
					
					
					
					
					
					
					
					
					
					
					
......................pounds..	61,900
.........................do...	28,000
.......................inch..	.0450
.........................do...	.00105
.........................do...	.015
............................... 5.7
...................... ".40 from neck
granular 85 per cent, silky 15 per cent ׳ ;.......................... ".05*, ".04
General summary.
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. 7325.
. .	, PY 92-15
Marks, 2 Diameter, ".505.
Sectional area, .20 square inch. Gauged length, 2".
Remarks.
Initial load.
Elastic limit.
Tensile strength.
Permanent set.	Successive permanent set.
Inch. 0. 0.	Inch. 0. 0.
	
	
	
	
	
	
	
	
	
	
	
	
Successive elongation per inch.
Inch.
0.
.00015 .00015 .00040 .00020 .00005 .00005 .00015 .00075 .00190 .00105 .00090 .00075
Applied loads per square inch.	Elongation per inch.
Pounds.	Inch.
1,000	0.
5,000	. 00015
10,000	. 00030
20,000	. 00070
25,000	.00090
26,000	.00095
27,000	. 00100
28,000	.00115
29,000	.00190
30,000	. 00380
31,000	. 00485
32,000	.00575
33,000	.00650
60,250	
......................pounds..	60,250
........................do...	27,000
.......................inch..	.0400
.....................do...	.00100
.....................do...	.015
.............................. 5.7
...................... ".50 from neck
granular 85 per cent, silky 15 per cent ........................... ".04*, ".04
General summary.
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............................