INTERNAL STRAINS IN GUN FORGINGS.
Tube 12485 B7 B1—A.
336
Breech Slice.
Annealed at 750° F.
State of internal strains and stresses at different phases ot the slice.
SLICE INTACT.
Interior diameter of slice, 474.״; exterior diameter of slice, 1041.״.
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.8954 5.6465 9.6481 10.2575	Inch.	Inch. .0033 .0021	Pounds.	Pounds. 20,200 11,200
^						
		.0016 .0008		5,000 900	
					
					
Rings 1 and 4 detached; rings 2 and 3 in the slice.
Interior diameter of slice, 5".5; exterior diameter of slice, 9 .8.
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.8987 5.6457 9.6477 10.2572	Inch.	Inch.	Pounds.	Pounds.
			.0029		15,400
		+ .0012		3,700	
					
					
					
KINGS ALL DETACHED.
	^5.6486			
3 detached		9.6465	1