338	INTERNAL STRAINS IN GUN FORGINGS.
Tube 12485 B7 BM—A.
Breech Slice.
Annealed at 600° F.
State of internal strains and stresses at different phases of the slice.
SLICE INTACT.
Interior diameter of slice, 4".78; exterior diameter of slice, 10".41.
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.95285 5.6496 9.64505 10.26705	Inch.	Inch. .00435 .00265	Pounds.	Pounds. 26,300 14,100
					
		.00405		12,600	
			.00155		4,500
					
Rings 1 and 4 detached; rings 2 and 3 in the slice.
Interior diameter of slice, 5". 5; exterior diameter of slice, 9".8.
1	3 				 1 !־ J	J		1		
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
*	Inches. 4.9572 5.6486 9.64435 10.2686	Inch.	Inch.	Pounds.	Pounds.
			.00365		19,400
		.00335		10,400	
					
					
RINGS ALL DETACHED.
	5.65225 9.6410