Masking against hydrogen embrittlrment
Masking against hydrogen embrittlrment
(OP)
I have an 4340 steel part heat treated to 160-180 ksi but locally on small area it has a hard case 60-65 RC (flame or induction hardening). I would like to zinc coat it except the hard case area. What is the common way to mask/protect the hard cased area from hydrogen penetration during the zinc coating. The part will be baked against hydrogen embrittlement after the coating.





RE: Masking against hydrogen embrittlrment
RE: Masking against hydrogen embrittlrment
Kind Regards,
Rodney