Latest developments of high-strength grooved rail steels

New trains with improved accessibility, higher train frequencies and the higher transport capacity go hand-in-hand with increased track guiding forces, acceleration and breaking forces and thereby the total load applied to the rail-wheel-system. These are also the reasons for the main concern of grooved rails, i.e. abrasive wear of the railhead and the guiding railhead reducing the service life. The use of heat treated grooved rails R290GHT (build-up welding) and R340GHT (put-in and forget) in curves realizes a significant longer service life time compared to standard carbon and low alloyed (as-rolled) rail steels. The better performance results in lower maintenance costs (e.g. build-up welding and profilegrinding) and life-cycle-costs (LCC) can be reduced sustainably. Based on a deep understanding of theoretical and practical background, for both rail grade strategies (buildup welding / put-in and forget), an optimized and new generation of grooved rail steels has been developed.

Media Info

  • Pagination: 6p. ; PDF
  • Monograph Title: Maintaining the momentum: CORE 2016: conference on railway excellence, 16-18 May 2016, Melbourne, Victoria, Australia

Subject/Index Terms

Filing Info

  • Accession Number: 01636914
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: May 30 2017 3:32PM