The stress-rupture strength of metal in a high-pressure convective steam superheater and a live steam pipeline made of DI82 steel is investigated. Test results are lower than standard data. Deviation increases as it approaches the operating stress range in the metal. It is shown that the reason is connected with the extrapolation error for the dependence established in the standard from high stress region to the low stress region.
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Translated from Élektricheskie Stantsii, No. 8, August 2020, pp. 11 – 15.
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Bogachev, V.A., Kreitser, K.K. Investigation of the Stress-Rupture Strength of Boiler Pipe Metal Made from Steel Grade 10KH9MFB (DI82). Power Technol Eng 54, 726–729 (2021). https://doi.org/10.1007/s10749-020-01277-w
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DOI: https://doi.org/10.1007/s10749-020-01277-w