This Standard specifies hot-rolled atmospheric corrosion resisting steels (hereafter referred to as "steel products") for bridges, architecture and other welded structure.
NOTE: The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.
ISO 630-5 : 2014 Structural steels - Part 5 : Technical delivery conditions for structural steels with improved atmospheric corrosion resistance (MOD)
In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/lEC Guide 21-1.
Note 1) The term "atmospheric corrosion resistance" means the property to withstand the corrosion in the natural atmosphere.