This standard is initially published on green paper for the needs of AECMA-Members (Association Europeenne des Constructeurs de Matdriel Adrospatial). It has been technically approved by the
experts of the concerned AECMA Commission following comment by the manufacturers of the Member countries.
AECMA PREN 2161-1999 history
1999AECMA PREN 2161-1999 Aerospace Series Heat Resisting Alloy CO-CH1401 (CoCr26i11W) Not Heat Treated Precision Casting Edition P1
1994AECMA PREN 2161-1994 Aerospace Series Heat Resisting Alloy CO-CH1401 as Cast Precision Castings Issue EN
1978AECMA PREN 2161-1978 Heat Resisting Cobalt Base Alloy CO-C91-HT as Cast Precision Castings Aerospace Series Edition 1