INTERNAL STRAINS IN GUN FORGINGS.
294
Tube 11784 B3 BO—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".77; exterior diameter of slice, 10".42.
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.9311 5.6468 9.64405 10.29125	Inch.	Inch. . 00395 .00285	Pounds.	Pounds. 24,000 15,100
					
		.00185		5,800	
			.00555		16,200
					
Rings 1 and 4 detached; rings 2 and 3 in the slice.
Interior diameter of slice, 5".5; exterior diameter of slice, 9".8.
3 *
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.93505 5.64525 9.64295 10.2968	Inch.	Inch.	Pounds.	Pounds.
			.0044		23,400
		. 00075		2,300	
					
					
RINGS ALL DETACHED.
	5.64965			
	i O M99.			
1