Testing butt joints in pipes made of VM12-SHC martensitic steel |
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| Authors: | Michał Urzynicok Krzysztof Kwieciński Marian Szubryt |
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| Affiliation: | 1. Zak?ad Elementów Kot?owych ‘ZELKOT’ ,Kosze?cin, Poland;2. Welding Institute, Department of Welding and Welding Construction ,Gliwice, Poland;3. TüV NORD Polska Sp. z o.o. ,Katowice, Poland |
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| Abstract: | VM12-SHC steel is the newest grade of 12% Cr steel developed by the V&M company. At the present moment, there are works being conducted in order to make use of this steel in steam superheaters. It is also planned to implement VM12-SHC steel to the fabrication of water-walls for prototype boilers operated at very high temperature and pressure parameters. In this article, test materials and welding consumbables are characterized and the process of preparation of pipes to be welded is discussed. The results of metallographic examination and mechanical testing of the test joints are presented. |
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| Keywords: | VM12-SHC steel butt joints |
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