840	INTERNAL STRAINS IN GUN FORGINGS.
Tube 12485 B7 BO—A
Breech Slice.
the slice.
Annealed at 450° F.	,
State of internal strains and stresses at different phases oi
SLICE INTACT.
Interior diameter of slice, 4".80; exterior diameter of slice, 10 .42.
3 4
XL-i
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.9465 5.6447 9.6462 10.27055	Inch.	Inch. . 00385 .00275	Pounds.	Pounds. 23,300 ־ 14,600
^						
		.0020		6,200	
			.0047		13,700
					
					
Rings 1 and 4 detached; rings 2 and 3 in the slice.
Interior diameter of slice, 5".5; exterior diameter ol slice, 9 .8.
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.95035 5.64345 9.6454 10.27525	Inch.	Inch.	Pounds.	Pounds.
			.0040		21,200
		.0012			
					
					
RINGS ALL DETACHED.
	5.64745	.1		
3 detached		9.6442		1 :