Report of the Tests of Metals and Other Materials for Industrial Purposes Made with the United States Testing Machine at Watertown Arsenal, Massachusetts, During the Year Ended ...
U.S. Government Printing Office, 1919 - Building materials
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500 diameters Air chilled Annealed July Annealed June 24 bolt breech end Brinell hardness Brinell hardness tests carbon casting cent nitric acid central portion Charpy bars Charpy impact tests Charpy test Charpy value chemical analysis CONCLUSIONS Contrac coppers crack curve cylinder decarburized determined dle line drill elastic limit Elongation Etched with nitric etching with Stead's extensometer firing pin firing-pin forward end fracture Frankford Arsenal free ferrite furnace graph heat treated heat treatment horizontal mid inches from left Initial compression given jacket laboratory Length given load longitudinal direction Longitudinal section magnified 500 martensitic micro microscopic examination microstructure nonmetallic inclusions obtained pearlite Percent phosphorus photograph physical tests pounds per square quenching recuperator forging samples section of barrel shown in micrograph shows the structure slag inclusions sorbitic specimens taken square inch Stead's reagent steel streaks Table temperature tensile specimens Tensile strength tensile test transverse direction transverse tests troosto-sorbitic tube Watertown Arsenal
Page 3 - Watertown Arsenal, of Tests of iron and steel and other materials for industrial purposes," made at that arsenal during the fiscal year ended June 30, 1912.
Page 244 - ... low Charpy strength and the static properties, namely, elastic limit, tensile strength, elongation, and contraction. The static properties obtained from the specimens taken in the transverse direction are sufficient in themselves to warrant the rejection of the piece. As all of the forgings discussed have suffered from very low ductility when static tensile tests were taken in the transverse direction, while at the same time the Charpy test has been low, it will doubtless occur to many that the...
Page 227 - Cylinders represented by test (serial Nos.) Yield strength (pounds per square Inch) Tensile strength (pounds per square inch) Elongation (percent In 8 Inches) Reduction of area (percent) Flattening test Serial Nos.
Page 100 - Yield point (pounds per square inch) Tensile strength (pounds per square inch) Elongation (per cent in 8 inches) Reduction of area (per cent) Test No.
Page 3 - Secretary of War. The SPEAKER OF THE HOUSE OF REPRESENTATIVES.
Page 228 - Elastic limit (pounds per square inch) Tensile strength (pounds per square inch) Elongation (percent in 2 inches) Reduction of area (percent) Heat No.
Page 179 - Tensile Strength. Pounds per Square Inch. Elastic Limit. Pounds per Square Inch.
Page 121 - Arsenal, one might mention such investigations as the following: An examination of castings having different manganese content ; An examination of high manganese steel castings to determine the chemical composition and microstructure of this steel ; Experimental heat treatment of cast steel to determine the effect on the physical properties, including the Charpy impact strength of three standard heat treatments applied to cast steel in the Arsenal foundry ; Investigation to determine the effect of...
Page 3 - THE SPEAKER OF THE HOUSE OF REPRESENTATIVES. SIR: I have the honor to transmit herewith, a letter from the Acting Chief of Engineers, United States Army, dated November 30 ultimo, submitting a report of the Mississippi River Commission, with maps...