This Standard specifies requirements for as-rolled and hardened steel rails made from continuously cast blooms and profiles for asymmetric switch rails and elevated guardrails for railway purposes.
This Standard does not apply to the manufacture of steel rails with a nominal minimum surface hardness greater than 350 HB, including super-pearlite, hyper-eutectoid or other premium alloy rails.
NOTES:
1. Guidelines for purchasers are given in Appendix A.
2. Guidance on the means for demonstrating compliance with this Standard is given in Appendix B.
3. Information on residual stresses in rail is given in Appendix C.