INTERNAL STRAINS IN GUN FORGINGS,
322
Tube 11794 B6.
Breech Slice.
After annealing 7 feet of breech end at 665° F.
State of internal strains and stresses at different phases of the slice.
slice intact.
Interior diameter of slice, 4".76; exterior diameter of slice, 10".44.
Rings. •	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
1		Inches. 4.89685 5.6485 9.65925 10.2881	Inch.	Inch. .0042 .00295	Pounds.	Pounds. 25.700 15.700
2						
3				.00295 .0013		9,200 3,800	
4						
					
Rings 1 and 4 detached; rings 2 and 3 in the slice.
Interior diameter of slice, 5".50; exterior diameter of slice, 9".80.
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		. Tension.	Compres- sion.	Tension.	Compres- sion.
1 detached		Inches. 4.90105 5.64725 9.6583 10.2868	Inch.	Inch.	Pounds.	Pounds.
2				. 0042		22,300
3			.0020		6,200	
4 detached.						
					
RINGS ALL DETACHED.
	5.65145 9.6563