Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
-----
Is hardened 440C Stainless plate-able?
Q. I am having problems with getting some parts that are made of 440C Stainless Steel hard chrome plated.
The parts have been hardened to 46-52 Rc.
The plater is having problems with bubbling.
Is there something intrinsic in the 440C or with hardened parts that cause problems in plating?
Daniel Ross- La Puente, California
2003
? What is his process?
Trevor Crichton
R&D practical scientist
Chesham, Bucks, UK
2003
A. Unfortunately not all chrome platers are qualified for the job and some of them treat SS very much like a conventional carbon steel (i.e., cleaning, reverse etch then plate). This reverse passivates most SS and adhesion is compromised. I think this is the most frequent case of failure in these type of materials. Furthermore, heat treatment sometimes adds the problem of smut.
Guillermo MarrufoMonterrey, NL, Mexico
2003
(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)
Q, A, or Comment on THIS thread -or- Start a NEW Thread
Q, A, or Comment on THIS thread -or- Start a NEW Thread