ISO-630-4 Complete Document History
Structural steels - Part 4: Technical delivery conditions for high yield strength quenched and tempered structural steel plates and wide flats

Complete Current Edition:
   2ND EDITION - Part 4: Technical delivery conditions for high yield strength quenched and tempered structural steel plates and wide flats - April 1, 2021

Obsolete Revision Information:
   1ST EDITION - Part 4: Technical delivery conditions for high-yield-strength quenched and tempered structural steel plates - June 1, 2012