7-INCH B. L. SIEGE HOWITZEKS.
34
Tube.
7379.
No.
Marks, C5Sb2t 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	Inch. 0. . 00010 .00025 . 00060 .00100 .00110 .00125 .00135 . 00155 .00300	Inch. 0. .00010 .00015 .00035 .00040 .00010 .00015 .00010 .00020 .00145 .00300 .00150 .00100 .00150	Inch. 0. 0.	Inch. 0. 0.	Initial load.
20,000 30.000 35.000 40.000 42.000 49.000 50.000 51.000 52.000 53.000 54.000					
					
			0.	0.	
			0.	0.	Elastic limit.
					
					
					
	.00850 .01000				
					
					Tensile strength.
			 1			—
General summary.
.........pounds.. 84,450
.............do... 49,000
............inch.. .2750
.............do... .00155
.............do...	.155
.................. 51.9
at the middle of the stem ................fine silky
23.״ ,*32.״..............
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.............................