This Standard specifies the hot-rolled chromium-molybdenum alloy steel plates
(hereafter referred to as "steel plates") to be used for b.o.i.1..e..r.s a.n..d, pressure vessels in
services at ordinary to elevated temperatures.
NOTE: The International Standards corresponding to this Standard are as fol-
lows.
ISO 9328-1: 2003 Steel flat products for pressure purposes- Technical
delivery conditions- Part 1: Genera] requirements
ISO 9328-2: 2004 Steel flat products for pressure purposes -- Technical
delivery conditions -- Part 2: Non-alloy and alloy steels with specified
elevated temperature properties (Overall estimation: MOD)
In addition, 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/IEC Guide 21.
JIS G 4109:2008 history
2019JIS G 4109:2019 Chromium-molybdenum alloy steel plates for boilers and pressure vessels
2013JIS G 4109:2013 Chromium-molybdenum alloy steel plates for boilers and pressure vessels
2008JIS G 4109:2008 Chromium-molybdenum alloy steel plates for boilers and pressure vessels
2003JIS G 4109:2003 Chromium-molybdenum alloy steel plates for boilers and pressure vessels
1987JIS G 4109:1987 Chromium-molybdenum alloy steel plates for boilers and pressure vessels