2018DIN EN ISO 683-1:2018 Heat-treatable steels, alloy steels and free-cutting steels - Part 1: Non-alloy steels for quenching and tempering (ISO 683-1:2016); German version EN ISO 683-1:2018
2006DIN EN 10083-1:2006 Steels for quenching and tempering - Part 1: General technical delivery conditions; English version of DIN EN 10083-1:2006-10
1995DIN EN 10083-3:1996 Quenched and tempered steels — Part 3: Technical delivery conditions for boron steels