PIVOT YOKES---15-POUNDER GUN MOUNTS 124 No. 7267. Marks, ¿pyi5 Diameter, ".505. Sectional area, .20 square inch. Gauged length, 2". Applied loads per square inch. Elongation per inch. Successive elongation per inch. Permanent set. Successive permanent set. Remarks. Pounds. 1,000 5,000 10,000 20,000 30.000 35.000 36.000 37.000 38.000 39.000 40.000 73,700 Inch. 0. .00010 .00025 . 00060 .00100 .00130 . 01050 . OHIO .01175 .01265 . 01350 Inch. 0. .00010 .00015 .00035 .00040 .00030 . 00920 . 00060 . 00065 .00090 . 00085 Inch. 0. 0. Inch. 0. o. • Initial load. Elastic limit. Tensile strength. 1 . General summary. ......................pounds.. 73,700 .........................do... 35,000 ................inch.. .1800 ................do... .00130 ........................do... .055 .............................. 20.5 ....................... ".9 from neck granular 80 per cent, silky 20 per cent *19.״ ,17.״ ......................... Tensile strength per square inch of original section... Elastic limit per square inch of original section...... Elongation per inch after rupture.....:־•.*-־;......... Elongation per inch under strain at elastic limit...... Reduction in diameter at point of rupture.............. Reduction in area after rupture, per cent of original section. Position of rupture.................................... Character of broken surface............................ Elongation of inch sections............................ No. 7229. Marks, pyi5 Diameter, ".505. Sectional area, . 20 square inch. Gauged length, 2". Remarks. Initial load. Elastic limit. Tensile strength. Permanent set. Successive permanent set. Incji. 0. 0. Inch. 0. 0. Successive elongation per inch. Inch. 0. .00015 . 00020 .00035 .00045 .00010 .00010 . 00705 .00070 . 00090 .00095 .00095 Elongation per inch. Inch. 0. .00015 .00035 .00070 .00115 .00125 .00135 .00840 .00910 .01000 .01095 .01190 Applied loads per square inch. Pounds. 1,000 5,000 10,000 20,000 30.000 32.000 33.000 34.000 35.000 36.000 37.000 38.000 72,500 General summary. ...............pounds.. 72,500 ........................do... 33,000 .................inch.. .2000 .........................do... .00135 ..................do... . 055 .............................. 20.5 ....................... 90.״ from neck granular 85 per cent, silky 15 per cent *23.״,17.״ ............................ Tensile strength per square inch of original section....... Elastic limit per square inch of original section....... Elongation per inch after rupture....................... Elongation per inch under strain at elastic limit....... Reduction in diameter at point of rupture....... —... - • • Reduction in area after rupture, per cent of original section Position of rupture..................................... Character of broken surface............................. Elongation of inch sections.............................