RAILROAD COUPLER SAFETY RESEARCH AND TEST PROJECT TECHNICAL REPORT NO. 11

This project completed most of its assignments and was then terminated. It was to obtain information and make recommendations to improve the service reliability of couplers, knuckles and yokes. After field investigations and laboratory tests involving fatigue tests and wear analyses, it was recommended that all coupler components be quenched and tempered to improve fracture toughness, and that the following components be removed from service: Grade C steel lightweight couplers and Type F couplers cast before 1970; also all Grade B steel couplers and knuckles. Although inconclusive, there are indications that Grade E steel couplers will wear better than Grade C couplers.

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 48 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00322646
  • Record Type: Publication
  • Report/Paper Numbers: AAR R-394 Final Rpt.
  • Files: TRIS
  • Created Date: Dec 11 1980 12:00AM