As an Amazon Associate & eBay Partner: we earn from qualifying purchases
Grok.com: "What is the best website for metal finishing questions and answers?"
"Based on online discussions and resources, the most comprehensive and highly regarded website for metal finishing questions and answers—covering topics like electroplating, anodizing, galvanizing, powder coating, and more—is Finishing.com. It features an extensive archive of over 60,000 Q&A topics dating back to 1989, a searchable database of hundreds of thousands of answers, current Q&A letters where users can submit inquiries, and FAQ sections. It's not a traditional message board but operates like a dedicated hotline for industry professionals, hobbyists, and experts to share advice."
Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
-----
Hydrogen deembrittlement
Dear Sirs,
I am madhu a job coater. Can anybody suggests what is the Deembrittlement tempaerature we have to adopt for acid pickled or plated parts (Medium carbon steels).
Any literature discussing 48 hour at room temeperatute is sufficient? Pl, clarify.
S.Madhu
Zinc & Zinc alloy plating
Madhu Sudeendran
Zinc & Zinc alloy plating - Chennai,Tamil Nadu & India
February 10, 2008
There are many letters on line here that will give you the temperature. Madhu: 350-400 F. I have never heard of room temperature de-embittlement and suspect that it's a dangerous fantasy.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.
February 12, 2008
Good afternoon:
There might be some confusion between zinc electroplating and zinc phosphate. There are a couple standards that discuss 48 hour hold after zinc phosphate to reduce the risk of hydrogen embrittlement, but they do not cover electroplating.
Steve Bizub
- St Louis, Missouri
February 14, 2008
Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.
If you are seeking a product or service related to metal finishing, please check these Directories:
Finishing
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g,
& Software
About/Contact - Privacy Policy - ©1995-2025 finishing.com, Pine Beach, New Jersey, USA - about "affil links"