This standard specifies the requirements relating to: Heat resisting alloy CO-WH4101 (CoCr20W 15Ni) Filler metal for welding for aerospace applications.
DS/EN 3887:2001 history
2001DS/EN 3887:2001 Aerospace series - Heat resisting alloy CO-WH4101 (CoCr20W15Ni) - Filler metal for welding