Stainless and Airborne Sodium Chloride 'Dust' 5

[dik]

I have a project where electrical cable trays are supported on unistrut type channels and the client has found that stainless steel S316 is recommended.

I've heard that S316 doesn't hold up well to chlorides. What would be the common stainless steel to use for airborne salt dust?

Dik

 

[metengr]

dik;
As long as moisture is not present nor any condensation that could wet the chlorides, the 316 stainless should be acceptable.

 

[SJones]

316 is a common cable tray material in 'airborne salt dust' for example as specified in NORSOK M-001 Generally, it will corrode and 'tea stain' but still retain support integrity for the cables.

Steve Jones
Materials & Corrosion Engineer

http://www.linkedin.com/pub/8/83b/b04

 

[786392]

Prevalent Environment definitely plays a key role on iis sustainable service life.E.g.

If for any reasons higher humidity and water vapours takes place;

this exposure may lead to sever impacts of corrosion even at time un-noticed(practically hidden beneath the cables)

Best Regards
Qalander(Chem)

 

[strider6]

dik

it depends on the type of atmosphere where the SS is used. is a marine, industrial, desert..?

have a look at this software and docs.

http://www.imoa.info/moly_uses/moly_grade_stainless_steels/architecture/selection_system.html

S

Corrosion Prevention & Corrosion Control

 

[dik]

Thanks, gentlemen... The environment is quite dry (not quite desert).

Dik

 

[EdStainless]

You should look into a lean duplex stainless alloy such as LDX2101. It will have similar corrosion resistance, and be a lot stronger than 316. You could use lighter gauge material and still have stronger support.
It is also less expensive than 316.

http://www.outokumpu.com

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube