scope:

This Standard specifies quenched and tempered manganese-molybdenum and manganese-molybdenum-nickel alloy steel plates (hereafter referred to as "steel plates"), suited for thermal refining by quenching and tempering, to be used for nuclear reactors and other pressure vessels.

NOTE: The International Standards corresponding to this Standard and the symbol of degree of correspondence are as follows:

ISO 9328-1: 2011 Steel flat products for pressure purposes-Technical delivery conditions-Part 1: General requirements

ISO 9328-2: 2011 Steel flat products for pressure purposes-Technical delivery conditions-Part 2: Non-alloy and alloy steels with specified elevated temperature properties (Overall evaluation: MOD)

The symbols which denote the degree of correspondence in the contents between the relevant International Standards and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/lEC Guide 21-1.