GOST: 21937 Steel grade: А, B, D, A32, Е32, А36 – Е36, A40, D40, А40S, D40S, 10ХН3МД, 10ГНБ, 45Г17Ю3 and etc. TU: № 5, 6, 7, 8, 9, 10, 12, 14а, 14б, 16а, 16б, 18а, 18б, 20а, 20б, 22а, 22б, 24а, 24б

GOST: 9235-76 Steel grade: А, B, D, A32 – Е32, А36 – Е36, A40, D40, A40S, D40S, 10ХН3МД, 10ГНБ, 45Г17Ю3

GOST: NS 2659 A set of rules: Rules of classification societies

GOST: 380-2005 Steel grade: Ст 3