BS-4S-99 Complete Document History
Specification for 2.5% nickel-chromium-molybdenum (high carbon) steel billets, bars, forgings and parts (1230-1420 MPa: limiting ruling section 150 mm)


Obsolete Revision Information:
   REPLACED BY BS-5S-99 - WITHDRAWN IN 2015 - April 1, 2015
   1976 EDITION - WITHDRAWN, 1/15/1994 - Nov. 30, 1976