The Iron and steel magazine . strated. E. and F. N. Spon, Limited. London. , 165. The Encyclopedia of Practical Engineering and Allied Trades, editedby Joseph G. Horner. Volumes I and II. Each volume 240 7 X ; profusely illustrated. Virtue & Co. London. Price, eachvolume, 75. 6d. Traite, thcorique et pratique de, Metallurgie Generate, by L. Babu,chief engineer of mines, professor at the Ecole Nationale des II. 705 7 X 9^-in. pages; illustrated. Librarie Beranger. Paris and Liege. 1906. Price, 25 francs. A Technological and Scientific Dictiona
The Iron and steel magazine . strated. E. and F. N. Spon, Limited. London. , 165. The Encyclopedia of Practical Engineering and Allied Trades, editedby Joseph G. Horner. Volumes I and II. Each volume 240 7 X ; profusely illustrated. Virtue & Co. London. Price, eachvolume, 75. 6d. Traite, thcorique et pratique de, Metallurgie Generate, by L. Babu,chief engineer of mines, professor at the Ecole Nationale des II. 705 7 X 9^-in. pages; illustrated. Librarie Beranger. Paris and Liege. 1906. Price, 25 francs. A Technological and Scientific Dictionary. Part XII, edited byG. F. Goodchild and C. E. Tweney. 64 6 X 10-in. pages; Newnes, Ltd. London. Price, is. This dictionary will be com-pleted in fifteen parts. The Competent Life, by Thomas D. West. 268 5 X 7^-in. pages;illustrated. The Cleveland Printing and Publishing Co. Doble Tangential Water Wheels. An illustrated pamphlet issued bythe Abner Doble Company. San Francisco, U. S. WILLIAM RICHARD JONES SEE PAGE 334 The Iron and Steel Magazine Je veux au mond publier dune plume de fer sur un papier dacier. Vol. XI April, 1906 No. 4 A DEFECTIVE BAR OF TOOL STEEL * By C. E. CORSONRailway Steel-Spring Co., Latrobe, for the Iron and Steel Magazine HpHE case of the failure of a finishing tool, from a bar of steel?* of a well-known make, and the study of its cause by metal-lographic methods, may be of interest to steel users. The tool referred to and shown in Fig 1 was put into servicefor finishing cuts on a boring mill and in less than two daysplayed out, having been in use for only a very small part ofthis period. The bar from which the tool was made was the regulationsize, i\ inches by 1J inches in cross section, and was of cruciblesteel with the following composition: C , P , Mn ,Si , S At one place in the bar, within a space of 12 inches, werefound the fractures exhibited in Fig. 2. Fracture A is finegr
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Keywords: ., bookcentury1800, bookdecade1890, bookidironsteel, booksubjectiron
