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

-----

Petroleum vapor compatibility of zinc alloy plating

We use acid zn plated mild steel components about 8 - 15 micron plating thickness. These get rusted. The are exposed the petroleum vapour (hardly petroleum oil directly). I wish to know to avoid rusting, which plting will be more effective and resistive to petroleum vapour and outdoor environment. That is, which plating cobalt zn / cyanide zn / acid zn you recommend and what should be thickness.

Thanks and regards.

Sarang Shikkenis
petroleuom field - Mubai, Maharashtra, India
2004

2004

Sarang

If the Sulfur levels are high Zinc or its named alloys may not help , though Cobalt Zinc is possibly the only alloy that may last a bit longer.

The one solution is Zinc Tin alloy which is in use in the automotive field for similar applications.

Regards

Asif Nurie [deceased]
- New Delhi, India
With deep regret we sadly advise that Asif passed away on Jan 24, 2016

(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: