Building Materials Their Nature Properties And Manufacture a Text book for S
Building Materials Their Nature Properties And Manufacture a Text book for S
G a T George Alexander Thomas Middleton
The book Building Materials Their Nature Properties And Manufacture a Text book for S was written by author G a T George Alexander Thomas Middleton Here you can read free online of Building Materials Their Nature Properties And Manufacture a Text book for S book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Building Materials Their Nature Properties And Manufacture a Text book for S a good or bad book?
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60 TABLE OF TESTS FOR WROUGHT IRON. N. B. The Tension columns show the Minimum tensile strains in tons per square inch of original section ; the Contraction is measured at per- centage of original sectional area ; and the Elongation at percentage increase in a length of 8 ins. The Medium quality is suited for most ordinary requirements, but where much forging or welding is necessary, " Special Quality" should be specified. Medium Quality. Special Quality. Description. Tension. Contrac- tion. El...onga- tion. Tension. Contrac- tion. Elonga- tion. Rounds, Squares, 2O per cent. 15 per cent. 10 22 to 23 per cent. 22 per cent. 18 and Flats. Angles, Tees, 2O J 5 10 22 20 10 Channels, etc. Plates (to | in. 2O IO 8 21 12 10 thickness) lengthways. 1 Plates across the 18 5 2 18 6 4 fibre. Wrought iron, suitable for rivets, should have a tensile strength of at least 23 tons per square inch with 30 per- centage contraction of area. In addition to this, it is often specified that the rivet should be capable of being bent double without cracking, to further prove its ductility.
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