Iron as a material of construction by William PoleIron as a material of construction by William Pole

Iron as a material of construction

byWilliam Pole

Paperback | February 6, 2012

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1872. Excerpt: ... The bars tried were all run second melting from the several pig irons, simple and unmixed; and all made from the same pattern. They were each 1 inch square, and 5 feet long; they were placed on supports 4 ft. 6 in. apart, and weighted in the middle till they broke. About two hundred and seventy bars were tried, made of iron from fifty-nine different works, in England, Scotland and Wales, both hot and cold blast make. The resulting values of A were:--Maximum about 14 Minimum " 8-6 Mean of all " 10"9 Some experiments on the transverse strength are also recorded in the American Reports already mentioned. The bars were 20 inches between supports, and about 2 inches square, the breaking weight being hung in the middle. A certain sample iron, when tested in the pig, gave 1st melting A= 9-5 When re-melted 10-8 When melted a third time.. 13 " a fourth time.. 16-8 Another sample, being made from a mixture of three different kinds of pig, gave--2nd melting 15-7 3rd " 16 The highest tenacity obtained was represented by the coefficient 17-8. Hence the mixing and the re-melting of iron have the same beneficial influence on the transverse strength as might be expected by analogy from the direct tenacity. The transverse experiments at the Woolwich Arsenal were tried with bars about 2 inches square, and 20 inches between the bearings, and loaded in the middle till they gave way. Five hundred and sixty-four specimens were thus tried, and they gave the constant of transverse strength:--Maximum =20 Minimum =4-6 Mean.. = 12-6 127. A valuable series of experiments was undertaken in 1846 and 1847, by Mr. Robert Stephenson, to determine the transverse strength of cast iron, as depending on the mixtures of the material from which the castings were made. T...
Title:Iron as a material of constructionFormat:PaperbackDimensions:52 pages, 9.69 × 7.44 × 0.11 inPublished:February 6, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217930549

ISBN - 13:9780217930543