BSI BS S 150 Specification for Chromium– molybdenum– vanadium–niobium heat-resisting steel billets, bars, forgings and parts (930 - 1 080 MPa) (Cr 10.5, Mo 0.6, V 0.2, Nb 0.3) - AMD 5182: September 1986; AMD 14819: February 24, 2004
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