UNE-EN 3470
Aerospace series - Steel FE-PM1503 (X3CrNiMoAl13-8-2) - Vacuum induction melted and consumable electrode remelted - Solution treated and precipitation treated - Forgings - a or D ≤ 150 mm - 1200 MPa ≤ Rm ≤ 1400 MPa (Endorsed by Asociación Española de Normalización in May of 2019.)