Iron As A Material Of Construction; Being The Substance Of A Course Of Lectures Delivered At The…

Paperback | October 12, 2012

byWilliam Pole

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1872 edition. Excerpt: ... In one case, a piece cut from a crank shaft gave:--Tenacity 14-5 Ultimate elongation 0-025 Work of rupture 407 Another from an armour plate gave:--Tenacity 15-4 Ultimate elongation 0-047 Work of rupture 825 189. While on the subject of large masses of wrought iron, I may say a word or two as to the huge plates which have lately come into extensive use for iron armour for war vessels. When the Iron Plate Committee (of which I had the honour to be a member) were first appointed, they began by instituting a series of experiments to test the comparative strength of plates of different thicknesses, and they early discovered the inferiority of large masses as compared with small. They, however, urged upon the makers the necessity of using every endeavour, by powerful machinery, and otherwise, to improve the quality, and the result has been very satisfactory, for plates were at last obtained of 5£ inches thick, as good as the 3 or 3£ inch plates were five years before. The Committee obtained, by testing various samples cut from the best plates, of and 5£ inches in thickness, a mean of about--Tons. Tenacity 24 Ductility (ultimate elongation).. 0-211 Work 5670 Which it will be seen is equal to the averages obtained from bars. The question occupied a good deal of the Committee's attention whether these large plates were best made by rolling or hammering; some makers preferring one mode, some the other. Good plates had been manufactured by either process. But some essential differences appeared between them. It was found, for example, that rolled plates could be made much softer than hammered ones; the rolling process induced a fibrous structure, and this gave ductility and softness to the iron, which was such an essential requisite...

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1872 edition. Excerpt: ... In one case, a piece cut from a crank shaft gave:--Tenacity 14-5 Ultimate elongation 0-025 Work of rupture 407...

Format:PaperbackDimensions:52 pages, 9.69 × 7.44 × 0.11 inPublished:October 12, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217930514

ISBN - 13:9780217930512

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