A comprehensive overview of the findings and metallurgical analyses of tests conducted at the National Bureau of Standards on samples of tank-car materials submitted by the Federal Railroad Administration is presented. The submitted samples were taken from tank cars which had been involved in accidents during the period January 1970 to January 1971. The testing conducted during the metallurgical analyses included full chemical analyses, ambient temperature tensile tests on longitudinal and transverse specimens, quantitative metallography to determine ferrite grain size, peralite colony size, and inclusion content, size, and shape, hardness tests, bend tests on longitudinal and transverse specimens, and a very comprehensive program of impact testing, which is covered in a separate report on Impact Properties.

  • Record URL:
  • Supplemental Notes:
    • Sponsorship was from Federal Railroad Administration, DOT.
  • Corporate Authors:

    National Bureau of Standards

    Department of Commerce
    Washington, DC  United States  20234

    Federal Railroad Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Interrante, C G
    • Early, J G
    • HICHO, G E
  • Publication Date: 1975-1

Media Info

  • Features: Appendices; Figures;
  • Pagination: 76 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00129149
  • Record Type: Publication
  • Source Agency: Federal Railroad Administration
  • Report/Paper Numbers: FRA-ORD/D-75-50 Final Rpt.
  • Contract Numbers: DOT-AR-40008
  • Files: NTIS, TRIS, USDOT
  • Created Date: Feb 19 1977 12:00AM