ISO 9443:1991Withdrawn

Heat-treatable and alloy steels — Surface quality classes for hot-rolled round bars and wire rods — Technical delivery conditions

Aciers pour traitements thermiques et aciers alliés — Classes de qualité de surface des ronds et fils-machine laminés à chaud — Conditions techniques de livraison

This edition has been replaced by ISO 9443:2018.

Abstract / scope

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.

Life cycle

Replaced by

ISO 9443:2018PublishedSurface quality classes for hot-rolled bars and wire rodInternational Standard · Published 18 May 2018 · ISO/TC 17/SC 4