DS EN 4642:2009 Aerospace Series - Steel Fe-Pm 3504 (X4crnimo16-5-1) - Air Melted - Hardened And Tempered - Sheet And Plate - 0,6 Mm <= A <= 50 Mm - 900 Mpa <= R[M] <= 1050 Mpa Defines the requirements relating to: Steel FE-PM 3504 (X4CrNiMo16-5-1) - Air melted - Hardened and tempered - Sheet and plate - 0,6 mm <= a <= 50 mm - 900 MPa <= R[m] <= 1050 MPa, for aerospace appli