ISO 683-4:1970
Heat-treated steels, alloy steels and free-cutting steels; Part IV : Wrought quenched and tempered steels with 1 % chromium and 0,2 % molybdenum and controlled sulphur content

Заменен на ISO 683-1:1987
 

12 страниц

Завершение срока действия 01.04.1987
Опубликован 01.01.1970

Heat-treated steels, alloy steels and free-cutting steels; Part IV : Wrought quenched and tempered steels with 1 % chromium and 0,2 % molybdenum and controlled sulphur content