Aloha, fun & authoritative answers -- no cost, no registration, no passwords, no popups
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Where the
world gathers for metal finishing
Q&As since 1989

-----

Correcting Hydrogen Embrittlement After Ornamental Chrome

I have a customer whose critical tubular fabricated suspension components (upper & lower control arms) for a GT1 race car inadvertently got ornimental chrome plated. The arms were fabricated from 4130. Is there any way to eliminate the HE from these arms?

Stephen J. Hague
PolarStar Engineering & Machine - Newark, Delaware, USA
2005

Next time there is, but not this time. The parts can be baked for hydrogen relief. There is a standard and it's about 375 °F for 12 hours but you'd need to look it up because I can't remember the exact numbers. The problem is that the damage from hydrogen embrittlement occurs within the first few hours, so the parts must be baked immediately.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2005

(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

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: