BS 8701:2016 Full ring ovalization test for determining the susceptibility to cracking of linepipe steels in sour service. Test method

BS 8701:2016 Full ring ovalization test for determining the susceptibility to cracking of linepipe steels in sour service. Test method

: Brown Technical Book Store

: 1110000017029

: Book

$514.99
BS 8701:2016 gives a method for determining the susceptibility to cracking of steel pipes in sour service. This British Standard utilizes a tubular specimen comprising a full circumferential ring. The test method applies to any pipe with or without seam (longitudinal or spiral) or girth weld (with or without filler). NOTE 1 The specimen is usually a pipe but can also consist of flange neck or section of a bend, or other tubular component or a combination of the above. This British Standard provides guidance on determination of specimen size to ensure it retains residual stresses from manufacture and welding. NOTE 2 See Clause 7 for specimen sizes. The method utilizes ovalization to simulate hoop stress, using mechanical loading on a tubular form. The specimen is subjected to single sided exposure to the sour test environment. NOTE 3 The test also allows measurement of hydrogen permeation rates which can provide useful information, such as highlighting the effects of galvanic coupling between materials of apparent compatibility.

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