This part of ISO 9328 specifies the requirements for flat products for pressure equipment made of weldable fine grain steels as specified in Tables A.1 and B.1. The requirements and definitions of ISO 9328-1 also apply to this part of ISO 9328.
NOTE Fine grain steels are understood as steels with a ferritic grain size of 6 or finer when tested in accordance with ISO 643.
ISO 9328-3:2004 history
2018ISO 9328-3:2018 Steel flat products for pressure purposes - Technical delivery conditions - Part 3: Weldable fine grain steels, normalized
2011ISO 9328-3:2011 Steel flat products for pressure purposes - Technical delivery conditions - Part 3: Weldable fine grain steels, normalized
2004ISO 9328-3:2004 Steel flat products for pressure purposes - Technical delivery conditions - Part 3: Weldable fine grain steels, normalized
1991ISO 9328-3:1991 Steel plates and strips for pressure purposes; technical delivery conditions; part 3: nickel-alloyed steels with specified low temperature properties