ASTM-B391 › Complete Document History
Standard Specification for Niobium and Niobium Alloy Ingots

Complete Current Edition:
   2018 EDITION - Niobium and Niobium Alloy Ingots - April 1, 2018

Obsolete Revision Information:
   WITHDRAWN - NO REPLACEMENT - Jan. 1, 2018
   2009(E1) EDITION - EDITORIALLY CORRECTED - Jan. 1, 2010
   2009 EDITION - Standard Specification for Niobium and Niobium Alloy Ingots - Dec. 1, 2009
   2003 EDITION - Standard Specification for Niobium and Niobium Alloy Ingots - May 10, 2003
   1999 EDITION - Standard Specification for Niobium and Niobium Alloy Ingots - Nov. 10, 1999
   1996 EDITION - Standard Specification for Niobium and Niobium Alloy Ingots - May 10, 1996
   1989 EDITION - Standard Specification for Niobium and Niobium Alloy Ingots - Sept. 29, 1989
   1984 EDITION - Standard Specification for Niobium and Niobium Alloy Ingots - Aug. 31, 1984