This «Aerospace Series. pre-standard has been drawn up under the responsibility of AECMA
(Association Européenne des Constructeurs de MatérielAérospatial). It is published on green paper
for the needs of AECMA-Members. It has been technically approved by the experts of the concerned
AECMA Commission following comment by the Member countries.
AECMA PREN 2920-1988 history
1988AECMA PREN 2920-1988 Aerospace Series Steel FE-PL72 Carburized, Hardened and Tempered Forgings De less Than or Equal to 160 mm Issue P 1