Background: The paper presents a study of E500 TMCP European and F500W Russian Arctic shipbuilding thick\nsteel plates. E500 steel plate (thermo-mechanically controlled process (TMCP), 25 mm thickness) and F500W steel\nplate (QT, 30 and 35 mm thickness) are designed for operation in Arctic conditions at temperatures as low as âË?â??40\nand âË?â??60 Ã?°C, respectively.\nMethods: The steels were evaluated in terms of base metal quality and welding performance. Welds and\nbase metal were tested by methods described in International and Russian standards, namely the static\ntension test, Charpy V-notch impact test, drop weight test to determine nil-ductility transition (NDT)\ntemperature, threepoint bending (Tkb) test, and crack tip opening displacement (CTOD) test. European E500\nTMCP steel was evaluated according to the requirements of Russian standards; additionally, the research\nassesses the ability of E500 TMCP steel plates to meet the requirements of special tests required by the\nRussian Maritime Register of Shipping, such as Tkb and NDT tests.\nResults: F500W QT obtains better results in special tests like NDT (âË?â??100 Ã?°C is better than âË?â??65 Ã?°C) and CTOD (CTOD\nâË?â??40 Ã?°C average 1.18 mm > 0.41 mm). Using quenching followed by high tempering enables possible operational\ntemperatures down to âË?â??70 Ã?°C. However, the NDT test is required only in Russian standards. E500 steel base metal tests\nshowed applicability based on criteria of the Charpy test at temperatures as low as âË?â??85 Ã?°C; based on criteria of NDT at\nâË?â??65 Ã?°C; based on Tkb criteria only at âË?â??40 Ã?°C; and CTOD test showed E500 applicability to as low as âË?â??55 Ã?°C. E500\nwelding tests showed, that Charpy impact toughness values are limiting the use of MMA welds to âË?â??20 Ã?°C, and FCAW\nand SAW welds can be utilized with some limitations at âË?â??40 Ã?°C. CTOD of the welded joint showed that E500\napplicability at âË?â??40 Ã?°C is satisfactory just on the borderline of the standard requirements.\nConclusions: The test results showed fair performance for both the European and Russian steels. The steels were\nfound to meet the requirements for Arctic application of both European and Russian standards.
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