JSA - JIS G 4109
Chromium-molybdenum alloy steel plates for boilers and pressure vessels
|Publication Date:||20 November 2019|
|ICS Code (Flat steel products and semi-products):||77.140.50|
|ICS Code (Steels for pressure purposes):||77.140.30|
|ICS Code (Stainless steels):||77.140.20|
This Standard specifies requirements for hot-rolled chromium-molybdenum alloy steel plates for boilers and pressure vessels used in service at room temperature and elevated temperatures (hereafter referred to as steel plates).
NOTE The International Standards corresponding to this Standard and the symbol of degree of correspondence are as follows.
ISO 9328-1:2018 Steel flat products for pressure purposes-Technical delivery conditions-Part 1: General requirements
ISO 9328-2:2018 Steel flat products for pressure purposes-Technical delivery conditions-Part 2: Non-alloy and alloy steels with specified elevated temperature properties (Overall evaluation: 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/IEC Guide 21-1.