Mechanical Properties of Tank Car Steels Retired from the Fleet

As a consequence of several recent tank car accidents, the structural integrity of railroad tank cars has come under greater scrutiny, especially the older portion of the fleet fabricated prior to steel normalization requirements. The purpose of this program was to obtain samples of the steel used for tank car shell and head fabrication in the current tank car fleet. Once obtained, the dynamic fracture toughness of a subset of material was determined as well as basic material characterization of all samples. The process of gathering the samples required coordinating with the fleet operators and railroads to obtain pieces of tank cars as they were retired from the fleet. In total, steel samples from 34 tank cars were received and tested. The vast majority of the TC128-B samples extracted from retired tank cars met current TC128-B material specifications.

  • Record URL:
  • Corporate Authors:

    Southwest Research Institute

    6220 Culebra Road, P.O. Drawer 28510
    San Antonio, TX  United States  78228-0510

    Foster-Miller Associates, Incorporated

    350 Second Avenue
    Waltham, MA  United States  02254

    Volpe National Transportation Systems Center

    55 Broadway
    Cambridge, MA  United States  02142
  • Authors:
    • McKeighan, Peter G
  • Publication Date: 2008-8


  • English

Media Info

  • Media Type: Web
  • Edition: Final Report
  • Features: Appendices; Figures; References; Tables;
  • Pagination: 331p

Subject/Index Terms

Filing Info

  • Accession Number: 01142928
  • Record Type: Publication
  • Report/Paper Numbers: SwRI Project No. 18.12240
  • Contract Numbers: Volpe DDTS.060183.000.801; Foster-Miller SUB3-0002
  • Files: TRIS, USDOT
  • Created Date: Oct 28 2009 9:58AM