Differentiate between 15-5PH and 17-4PH
Differentiate between 15-5PH and 17-4PH
(OP)
What is the best way to differentiate between 17-4PH and 15-5PH material? My arc/spark machine results say the Cr content is lower than 17-4 range in the 15-5 Cr content range. Is there an appreciable difference in the amount of ferrite in 15-5 verses 17-4? What etchant will best show this difference? Fry’s? Villella’s?
Any guidance is appreciated.
Thank you,
Metalhoo
Any guidance is appreciated.
Thank you,
Metalhoo





RE: Differentiate between 15-5PH and 17-4PH
RE: Differentiate between 15-5PH and 17-4PH
The alloy analyzer was able to pickup the Ni, Cu etc. and the alloying ranges fell into the overlap of the 15-5 and 17-4 material chemistry ranges. Hardness was not helpful either. Is there any tell tale etchant I can use?
Thank you,
Metalhoo
RE: Differentiate between 15-5PH and 17-4PH
Aaron Tanzer
www.lehightesting.com