 | John Joseph Welch - Naval architecture - 1891 - 216 pages
...the specimens so treated must stand being bent double in a press to a curve of which the inner radius is equal to one and a half times the thickness of the plate tested. Moulded steel is also subjected to hot and cold forge tests to prove its fitness for service.... | |
 | Walter S. Hutton - Locomotive boilers - 1891 - 530 pages
...the surveyor. The test-pieces are heated to a low cherry-red, and cooled in water of 82° Fahr. They must then stand bending to a curve, the inner radius of which is one and a half times the thickness of the piece. All plates passed by Lloyd's surveyors are branded,... | |
 | Joseph Kendall Freitag - Building, Iron and steel - 1895 - 268 pages
...Test. — Duplicate specimens will be required to stand bending 180° around a mandrel, the diameter of which is equal to one and a half times the thickness of the specimen, without showing signs of rupture on either concave or convex side. After being heated to... | |
 | William Frederick Durand - Marine engineering - 1901 - 738 pages
...manner : Inspectors shall promiscuously select one bar from each lot and bend one end of such bar cold to a curve, the inner radius of which is equal to one and one-half times the diameter of the test bar ; and should any such test bar break in the bending process... | |
 | Harry de Berkeley Parsons - Steam-boilers - 1903 - 396 pages
...manner: Inspectors shall promiscuously select' one bar from each lot and bend one end of such bar cold to a curve the inner radius of which is equal to one and one-half times the diameter of the test-bar; and should any such test-bar break in the bending process... | |
 | Joseph Gregory Horner - Engineering - 1906 - 572 pages
...classes of plates is the bending test, in which a shearing is taken about 10 in. or 11 in. long by 1¿ in. wide, heated to a low cherry red. and cooled in...before being worked up, tests which were not insisted on so rigidly in the case of the more uncertain plates of iron. Every plate has a record kept of its... | |
 | Joseph Gregory Horner - Engineering - 1906 - 562 pages
...Samples are also to be heated to a low cherry red and cooled in water of 82° Fahr., and then bent to a curve the inner radius of which is equal to one and a half times the thickness of the plate. Tests of other inspecting bodies do not vary much from the above. They are summarised below. British... | |
 | Agriculture - 1907 - 636 pages
...steel bars to be used for stays or braces must pass a cold bending test; the sample is to be bent cold to a curve the inner radius of which is equal to one and one-half times the diameter or thickness of the bar, and must stand this bending without showing flaws... | |
 | Civil engineering - 1907 - 668 pages
...the bar. Steel bars for stays or braces must also pass a bending test; the sample is to be bent cold to a curve the inner radius of which is equal to one and one-half times the diameter of the bar, and must stand this bending without showing flaws or cracks.... | |
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Should any such test bar fail in either the tensile or bending test, no bars from such heat shall be allowed to be used in the construction of any marine boiler. Where a heat of steel bars has been passed by an inspector, separate lots... 
