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Information × Registration Number 2104U000315, Article popup.category Стаття Title popup.author popup.publication 01-01-2004 popup.source_user Сумський державний університет popup.source http://essuir.sumdu.edu.ua/handle/123456789/10705 popup.publisher Вид-во СумДУ Description This paper describes the results of the authors’s experimental research regarding the WIG butt-welding procedure (WIG – Wolfram Inert Gas) applied to a number of A and QT 700 (X 70) specimens of coiled tubing under laboratory conditions (QT = Quality Tubing; 700 = 70,000 psi = 482.58 N/mm2 as their yield strength), the two possible options (presence or absence of a permanent metal support of the root) being equally taken into account and the results of the non-destructive tests (penetrating radiation testing) as well as those of the destructive ones (tensile / flattening / hardness tests and microscopic examination) applied to the coiled tubing in its position of oilfield tubular materials. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/10705 popup.nrat_date 2025-03-31 Close