Standard [CURRENT]
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This standard specifies the requirements relating to steel X4CrNiMo16-5-1 (1.4418), air melted, hardened and tempered, bar, De ≤ 200 mm, 900 MPa ≤ Rm ≤ 1 050 MPa, for aerospace applications. The committee responsible for this document is NA 131-01-01 AA.
This document replaces DIN EN 4631:2008-04 .