This part of ISO 9328 specifies the requirements for flat products for pressure equipment made of quenched and tempered fine weldable grain steels as listed in Tables A.1 and B.1. The requirements and definitions in ISO 9328-1 also apply to this part of ISO 9328.
NOTE Fine grain steels are understood to be steels with a ferritic grain size of 6 or finer when tested in accordance with ISO 643.
ISO 9328-6:2004 history
2018ISO 9328-6:2018 Steel flat products for pressure purposes - Technical delivery conditions - Part 6: Weldable fine grain steels, quenched and tempered
2011ISO 9328-6:2011 Steel flat products for pressure purposes - Technical delivery conditions - Part 6: Weldable fine grain steels, quenched and tempered
2004ISO 9328-6:2004 Steel flat products for pressure purposes - Technical delivery conditions - Part 6: Weldable fine grain steels, quenched and tempered