FINAL PHASE 03 REPORT. MATERIAL STUDY ON STEELS USED IN CURRENT AND FORMER TANK CAR CONSTRUCTION AND FROM CARS INVOLVED IN ACCIDENTS

A study has been made of the steels used in the construction of pressure tank car tanks as part of the RPI-AAR Tank Car Safety Research and Test Project: The number and type of tests made represent the most comprehensive ever performed on tank car tank steels. Fracture toughness properties are not a part of the material specifications for tank car tanks except for certain low temperature applications, Non-the-less, the fracture toughness properties were determined using the Charpy V-notch Test, Drop Weight Tear Test, Dynamic Tear Test, and NDT Drop Weight Test for current, accident, and old materials. The fracture properties obtained represent the best properties that are technologically attainable for the current steels for the heat treatment employed. For TC128-B material, no significant transition temperature improvement can be achieved by changing to other pearlitic type steels. It was concluded that the TC128-B steel is an optimum product for the service and that changes are not justified on the basic of the fracture properties.

  • Supplemental Notes:
    • Sponsored by the RPI-AAR Tank Car Safety Research and Test Project. Direct requests to Director of Operations.
  • Corporate Authors:

    Association of American Railroads Research Center

    3140 South Federal Street
    Chicago, IL  United States  60616
  • Authors:
    • EIBER, R J
    • Olson, L L
  • Publication Date: 1975-8-21

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 193 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00139455
  • Record Type: Publication
  • Source Agency: Association of American Railroads
  • Report/Paper Numbers: No. RA-03-5-33 Res. Rpt., No. R-193
  • Files: TRIS
  • Created Date: Oct 6 1976 12:00AM