
Curated with aloha by
Ted Mooney, P.E. RET

The authoritative public forum
for Metal Finishing 1989-2025

-----
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 Shikkenispetroleuom 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
Q, A, or Comment on THIS thread -or- Start a NEW Thread