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Properties of steels 20 and 15KhS1MFB melted by different methods

  • Heat Resistant Steels and Alloys
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Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    The reason for the failure of piping systems in power plants is the lack of gas-tightness of the pipe and connectors due to the presence in semifinished products of large numbers of stringers of nonmetallic inclusions (grade 5 and higher).

  2. 2.

    Vacuum arc remelting of steels 15KhS1MFB and 20 sharply reduces the total amount of nonmetallic inclusions, changes the type of inclusion, and substantially increases the gas-tightness. The characteristics determining the reliability (plasticity, ductility, and fatigue limit) are higher for the vacuum steel than for the standard steel.

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Literature cited

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Authors
  1. G. K. Shil'nikova
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  2. B. I. Berezhko
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  3. G. G. Zimin
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  4. V. L. Mizetskii
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Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 30–34, July, 1971.

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Shil'nikova, G.K., Berezhko, B.I., Zimin, G.G. et al. Properties of steels 20 and 15KhS1MFB melted by different methods. Met Sci Heat Treat 13, 563–566 (1972). https://doi.org/10.1007/BF00648197

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  • DOI: https://doi.org/10.1007/BF00648197

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