HOME FAQs BOOKS JOBS: Help Wanted Suggestions you are here: Hotline/Forum => Letter 47038

PROTECTING 1075 SPRING STEEL

+++++++

I require a finish on a part that will prevent it from rusting. We start with a flat piece of 1075 spring steel in its annealed state. The part is cut to size and a set of holes are added. We then bent the piece into a "U" shape; it is then hardened to approximately to RC 45. This is the point at which I am unsure of how to proceed. Could anyone recommend black oxide, phosphate, or something else entirely? The final appearance of the part is not extremely critical as it will be hidden during operation.

Kevin Groen
Product designer - Belleville, Ontario, Canada

+++++++

If it's permissable for the part to be oily, I'd probably go with the phosphating. If not, you might investigate autophoretic coating. Good luck. Other readers may have additional suggestions.

Ted Mooney, P.E.
finishing.com
Brick, New Jersey

ANSWER or FOLLOW UP POST an unrelated QUESTION HOT Topics

Disclaimer: It is not possible to 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; some names may be fictitious and some recommendations may be deliberately harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: