EN 2950 Aerospace series - Test method - Wrought heat resisting alloys Semi-finished products and parts - Conditions for macrographic and micrographic examination - Atlas of structures and defects
EN 4050-4 Aerospace series - Test method for metallic materials - Ultrasonic inspection of bars, plates, forging stock and forgings - Part 4: Acceptance criteria
EN 4258 Aerospace series - Metallic materials - General organization of standardization - Links between types of EN standards and their use
EN 4629 Aerospace series - Steel X4CrNiMo16-5-1 (1.4418) - Air melted - Softened - Forging stock - De ��300 mm
EN ISO 643 Steels - Micrographic determination of the apparent grain size (ISO 643:2019, Corrected version 2020-03)*, 2020-01-15 Update
ISO 643:2012 Steels - Micrographic determination of the apparent grain size
BS EN 4627:2014 history
2023BS EN 4627:2022 Aerospace series. Steel X4CrNiMo16-5-1 (1.4418). Air melted. Hardened and tempered. Forgings. De ≤ 200 mm. 1 150 MPa ≤ Rm ≤ 1 300 MPa
2014BS EN 4627:2014 Aerospace series. Steel X4CrNiMo16-5-1 (1.4418). Air melted. Hardened and tempered. Forgings. De 200 mm. 1 150 MPa Rm 1 300 MPa
2008BS EN 4627:2007 Aerospace series - Steel FE-PM 3504 (X4CrNiMo16-5-1) - Air melted - Hardened and tempered - Forgings - De 150 mm - 1100 MPa Rm 1300 MPa