Steels; Classification; Part 2 : Classification of unalloyed and alloy steels according to main quality classes and main property or application characteristics— 12 стр.
Heat-treatable steels, alloy steels and free-cutting steels - Part 3: Case-hardening steels (ISO 683-3:2016); German version EN ISO 683-3:2018— 44 стр.
Heat-treatable steels, alloy steels and free-cutting steels - Part 3: Case-hardening steels (ISO/FDIS 683-3:2018); German and English version prEN ISO 683-3:2018— 44 стр.