This standard specifies the general requirements for the preparation, trial production, shaping and document management of trial forgings. This standard is applicable to the trial production and finalization of aviation forgings, and can be implemented as a reference for the trial production of forgings for other products.
HB 5402-1997 history
1997HB 5402-1997 Specification for Trial Formulation of Forgings
1970HB 5402-1987 Specification for Trial Formulation of Forgings