UNE-EN 4721:2014 Aerospace series - Steel X4CrNiMo16-5-1 (1.4418) - Air melted and electroslag remelted (ESR) - Hardened and tempered - Bar - De <= 200 mm - 900 MPa <= Rm <= 1 050 MPa (Endorsed by AENOR in December of 2014.)
2014UNE-EN 4721:2014 Aerospace series - Steel X4CrNiMo16-5-1 (1.4418) - Air melted and electroslag remelted (ESR) - Hardened and tempered - Bar - De <= 200 mm - 900 MPa <= Rm <= 1 050 MPa (Endorsed by AENOR in December of 2014.)