6-INCH R. F. GUNS.
26
Tube.
No. 7352.
TV/T l 19721 B!
Marks, m t5 m Diameter, ".505.
Sectional area, .20 square inch. Gauged length, 2".
Remarks.
Successive
permanent
set.
Permanent
set.
Successive elongation per inch.
Elongation per inch.
Applied loads per square inch.
Initial load
Elastic limit.
Tensile strength.
Inch. 0. 0.	Inch. 0. 0.
	
	
0.	0.
0.	0.
	
	
	
	
Inch.	Inch.
0.	0.
.00010	.00010
.00025	.00015
.00060	.00035
.00100	.00040
.00115	.00015
.00135	.00020
.00145	.00010
.00500	.00355
.01305	. 00805
.01350	.00045
.01430	.00080
.01500	.00070
Pounds.
1,000
5,000
10,000
20,000
30.000
35.000
40.000
42.000
43.000
44.000
45.000
46.000
47.000 80,400
.pounds.. 80,400
....do... 42,000
...inch.. .2550
....do... .00145
....do...	.194
......... 57.0
. l/'l from neck . silky, serrated
20.״ ,*31." ....
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............................