Where the world gathers for
plating, anodizing, & finishing Q&As since 1989

-----

Embrittlement of grade 10.9 hot-dip galvanized fasteners

June 25, 2010

We are hot-dip galvanizing 10.9 grade fasteners.
Will pickling by phosphoric acid prevent or reduce hydrogen embrittlement on such jobs?

Shot-blasting is an option but the threaded portion may be damaged. also lead time after shot blasting and galvanizing is a concern

Abbas Rangoonwala
galvanizer - Mumbai, India

July 17, 2010

Sir:

What is the tin (Sn) content of your molten zinc bath?

Regards,

Dr. Thomas H. Cook
Galvanizing Consultant - Hot Springs, South Dakota, USA

finishing.com is made possible by ...
this text gets replaced with bannerText

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: