# ISO 4957:1980 — Withdrawn and superseded ISO standards For ISO 4957:1980, item title is Tool steels; status code is 9599; successor is ISO 4957:1999; withdrawn / published date is 1980-09-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 4957:1980 _(verified: appears in the quote below)_ - **Item title:** Tool steels _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 4957:1999 - **Withdrawn / published date:** 1980-09-01 _(verified: appears in the quote below)_ ## What the source says > 10980,IS,,ISO 4957:1980,Tool steels,Aciers à outils,1980-09-01,1,['77.140.35'],ISO/TC 17/SC 4,9599,,[23194],"['en','fr']",20, ## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).