Hi Everyone,
We have a corrosion issue with 409 Stainless Steel casings in a coastal environment. Could anything be done - would a Zinc coating be OK on this material?
Thank you for any insight or assistance.

MY DEAR

TAKE THIS Link-MAIL I THINK MORE Useful FOR YOU

((((MORE THAN 1200 EBOOKS))))

http://www.4shared.com/dir/6341529/f944b...aring.html

Not 100% sure about the specific corrosion type that you will be getting on 409 stainless but typically, coastal corrosion and duplex stainless corrosion areas are coated with Aluminium.

For standard carbon steel coastal application, aluminium is a bit more predictable than zinc and therefore is commonly used on oil platforms etc.

For duplex stainless applications, aluminium us used on platforms etc, to prevent crevice corrosion where there is not enough oxygen to get the stainless reacting.

Hope this helps.

Hi GlenB

409 had to google that as it was not in my handbook 11%Cr ferritic stainless steel. I'm with Stuart, I would try out aluminium.


Hi engr.ahmed

to the Surface Engineering Forum.

Not sure your post helps GlenB with his question, but probably helpful to those looking for engineering articles. May be best posted as a new thread or in http://www.gordonengland.co.uk/sef/resou...-f-14.html

Thank you Gentlemen,
I know that 409 exhaust systems are 'Aluminized'.

Kaif halak engr.ahmed!
Thank you, some great resources in there - I got lost for a little while!

Thanks
GlenB

GlenB Wrote:Hi Everyone,
We have a corrosion issue with 409 Stainless Steel casings in a coastal environment. Could anything be done - would a Zinc coating be OK on this material?
Thank you for any insight or assistance.

Hi Glen
We are the UK and EU distributor of a stainless steel coating that will protect your steel
We manufacture a coating in the United States
We supply Yuanda and major civil engineering companies world wide and are experiencing a large demand at the moment especially in marine enviroment... Dubai is having a lot right now.
It is simple to apply and provides 10 years protection from salt air salt fog, corrosion, oxidization, staining, bird droppings etc
If you would like more details you can email me at
everbrite-eu@everbritecoatings.com
Our website deals mainly with the domestic product but you are welcome to take a look
Look forward to hearing from you. Tony