INTERNAL STRAINS IN GUN FORGINGS.
296
Tube 11784 B3 BM—A. Breech Slice.
Annealed at 750° F.
State of internal strains and stresses at different phases of the slice.
SLICE INTACT.
Interior diameter of slice, 4".73; exterior diameter of slice, 10".42.
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres sion.	Tension.	Compres- sion.
1		Inches. 4.88185 5.64145 9.65525 10.27705	Inch.	Inch. .0028 .0018	Pounds.	Pounds. 17,200 9,600
2						
3			.0026 . 00075		8,100 2,200	
4						
					
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. 4.88465 5.64075 9.6548 10.2763	Inch.	Inch.	Pounds.	Pounds.
2				.0025		13,300 .
3			. 00215		6,600	
					
					
RINGS ALL DETACHED.
	5.64325 9.65265