Heat-treatable and alloy steels -- Surface quality classes for hot-rolled round bars and wire rods -- Technical delivery conditions
This standard has been revised by ISO 9443:2018
Applies particularly to steels for engineering applications, but may, by agreement, also be applied to structural steels or tool steels. Does not include any requirements for the permissible depth of surface decarburization. Annex A is for information only.
A standard is reviewed every 5 years
Revisions / Corrigenda