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Fracture characteristics of alloy 00Kh20N45M3T

  • Strength Characteristics
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Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    The highest operating temperature for parts of alloy 00Kh20N45M3T with a wall thickness ∼5 mm is not over 750°C, and not over 650°C for thin-walled parts (less than 1 mm). The high deformability of the alloy at 550–750°C is due to the plasticity resulting from intracrystalline shearing and the suppression of intergranular slip.

  2. 2.

    The austenitizing conditions for alloy 00Kh20N45M3T depend on the operating temperature. For operation at temperatures up to 650°C the austenitizing temperature is 1080°C, and at operating temperatures over 650°C it is 1200°C.

  3. 3.

    The rate of accumulation of structural damage in thin-walled tubing during long-term strength tests depends essentially on the heat treatment. The long-term strength and time to failure are highest for the alloy with a grain size of grade 4–6.

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Literature cited

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Authors
  1. A. A. Gorbakon'
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  2. É. V. Rytvinskaya
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Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 12, pp. 23–26, December, 1974.

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Gorbakon', A.A., Rytvinskaya, É.V. Fracture characteristics of alloy 00Kh20N45M3T. Met Sci Heat Treat 16, 1023–1026 (1974). https://doi.org/10.1007/BF00664041

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  • DOI: https://doi.org/10.1007/BF00664041

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