Can anyone provide information on etch rates for cleaning stainless steel 316 using nitric Acid? Thank you Brady Murphy
Brady Murphy Proceco Ltd. - Montreal Quebec Canada 1999
Durney's Electroplating Engineering Handbook [on
Amazon affil links]gives a figure of 0.0004 inches in 2 - 5 minutes for the listed etching/brightening solution.
Tom Pullizzi Falls Township, Pennsylvania 1999
Nitric acid by its self is not an etch for stainless steel. I am guessing but I think your removal rate would be measured in fractions of a thousands of an inch per YEAR. Nitric is after all used to passivate 316 SS...it is an oxidizing agent. However add a halogen such as F in the form of HF of ABF and WAM! Now you got an etch. Rate will depend on the usuals of metal finishing...Time, Temperature, Concentration.
Careful if your halogen is Cl you will create in situ a secondary etchant ferric chloride and you rate will increase over time....this can be most troublesome with high tolerance parts.
Jon Quirt - Fridley, Minnesota 1999
I WANT TO KNOW HOW WE CALCULATE, THE ETCHING RATE WITH OF ALLOY.
Sigal Cohen - Israel 2002
(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)
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: