Summary for ni-cr treated Discussion
Ni-Cr treated appears to be a confusing or possibly mistranscribed note about a plated part, and the thread does not establish a definitive standard from the excerpt alone. Iranna B asked what “Area for thickness and adhesion-tests: Ni-Cr treated” and “Treatment: DC 0.05/400 HV = 0.1+0.05, ISO 6507-3, Ni 12-4um, dull plated” means and which standard applies. In reply, Ted Mooney said the wording looked fractured and warned that the text may contain typos or missing context. He identified ISO 6507-3 as a standard for calibrating reference blocks of a Vickers hardness tester, but said that did not clearly explain the whole note. His practical advice was to go back to the original designer for clarification before relying on the notation.
May 2, 2018
Q. Hi
What is the meaning of this and which is the standard for this?
“Area for thickness and adhesion-tests: Ni-Cr treated”
“Treatment: DC 0.05/400 HV = 0.1+0.05, ISO 6507-3, Ni 12-4um, dull plated”
Ni-Cr treated, Ni 12-4um,
Iranna B
product designer – Bangalore,Karnataka, India
A. Hi Iranna. I think I recognize that particular formula as a formula for problems :-)
I corrected 4 typos in your very short posting, which is no problem on my end, but which should give you pause regarding whether the other characters you entered were precisely correct. Even if so, trying to figure out what it means and its implications, with no mention of where the words were found or what they refer to, is bad news.
ISO 6507-3 is a spec for calibrating the reference blocks of a Vickers hardness tester, but I believe this writeup is probably fractured, and if I were you I would ask the original designer to clarify. Good luck.
Regards,
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com – Pine Beach, New Jersey
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May 2018