Aerospace series - Steel FE-PM1503 (X3CrNiMoAl 13-8-2) - Vacuum induction melted and consumable electrode remelted - Solution treated and precipitation treated - Bar for machining - a or D ≤ 150 mm - Rₘ ≥ 1400 MPa (Endorsed by Asociación Española de Normalización in February of 2020.)