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Effect of molybdenum on the hardenability of steel ShKh15SG

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  1. 1.

    The hardenability and surface hardness of steel ShKh15SG are inadequate for large bearings with a wall thickness over 30 mm.

  2. 2.

    Additional alloying of steel ShKh15SG with 0.25–0.50% Mo increases the hardenability and the surface hardness.

  3. 3.

    The actual service life of ShKh15SGM bearings exceeds that of standard bearings by more than 50%.

  4. 4.

    Steel ShKh15SGM is recommended for large bearings in pivots and rotors.

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Literature cited

  1. 1.

    Z. G. Mamedov, R. I. Shukyurov, and N. N. Kachanov, Podshipnikovaya Promyshlennost', No. 2 (1971).

  2. 2.

    N. N. Kachanov, Hardenability of Steel [in Russian], Metallurgizdat, Moscow (1964).

  3. 3.

    Ya. R. Rauzin, Heat Treatment of Chromium Steels [in Russian], Mashgiz, Moscow (1963).

  4. 4.

    S. G. Voinov and A. G. Shalimov, Ball Bearing Steel [in Russian], Metallurgizdat, Moscow (1962).

  5. 5.

    N. N. Kachanov, R. I. Shukyurov, and Z. G. Mamedov, Izv. VUZ. Chernaya Metallurgiya, No. 9 (1971).

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Additional information

Ch. Il'drym Azerbaidzhan Polytechnical Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 2, pp. 68–69, February, 1973.

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Shukyurov, R.I., Kachanov, N.N. & Mamedov, Z.G. Effect of molybdenum on the hardenability of steel ShKh15SG. Met Sci Heat Treat 15, 165–166 (1973). https://doi.org/10.1007/BF00679755

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  • Molybdenum
  • Wall Thickness
  • Service Life
  • Surface Hardness
  • Actual Service