Production of heavy R-75-type rails has been developed at the Nizhnii-Tagil' Works. A 9.5 ton ingot with a smooth surface was used (yielding 4 rails including discard); resulting in an increased soaking pit productivity of 7.9 percent. The ingots are rolled using the schedule for R-65 rails; the rail profile obtained in initial trials satisfied the requirements of GOST-16210-70, and the properties of the hot-rolled and heat treated R-75 rails were also up to standard. The heavy rails show less warping and curvature during quenching than the R-65 rails. The yield of prime rail in the trial production batches was 88.5 percent. The rolling mill practices used in the rail manufacturing process are described along with the means used for rail straightening. Data taken during the study of mechanical properties for the R-75 rail are presented.

  • Corporate Authors:

    Izdatelstvo Metallurgiya

    2-oi Obydenskii Pereulok 14
    Moscow G-34,   USSR 
  • Authors:
    • Vinokurov, I Y
    • Rabinovich, D M
    • Loshkina, N A
    • Yuzhakov, A P
    • Serebryakov, V S
  • Publication Date: 1974

Media Info

  • Features: Tables;
  • Pagination: p. 260-262
  • Serial:
    • Stal'
    • Issue Number: 3
    • Publisher: Izdatelstvo Metallurgiya

Subject/Index Terms

Filing Info

  • Accession Number: 00172624
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 29 1978 12:00AM