2019DIN EN 10222-4/A1:2019 Steel forgings for pressure purposes - Part 4: Weldable fine grain steels with high proof strength; German and English version EN 10222-4:2017/prA1:2019
2017DIN EN 10222-4:2017 Steel forgings for pressure purposes - Part 4: Weldable fine grain steels with high proof strength; German version EN 10222-4:2017
2001DIN EN 10222-4:2001 Steel forgings for pressure purposes - Part 4: Weldable fine grain steels with high proof strength (includes Amendment A1:2001); German version EN 10222-4:1998 + A1:2001