This standard specifies the requirements for open-die forgings in aluminum alloy AL-P7009-, for use in condition T7452 1>, 40 mm ^ a ^ 150 mm, for aerospace applications.
ONORM EN 2381-1992 history
1992ONORM EN 2381-1992 Aerospace series - Aluminium alloy AL-P7009-T7452 -Hand forgings 40 mm < a < 150 mm