303 for rivets

[spears]

Is stainless 303 applicable to rivets? Does it typically require an addtional coating, and if so what are they.

Thanks for the help.

Spears

 

[mcguire]

I'm not as expert on long products as on flat, but 303 with all its elongated sulfides may present some problems with splitting. Why not use a low sulfur grade which would also have better corrosion resistance?
In general you pick the stainless grade which resists the given environment and doesn't need coating.

 

[EdStainless]

Since most rivets are cold formed they tend to be made from 301 or 302. Often they have coatings, but htat is very application dependent.

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Corrosion never sleeps, but it can be managed.

http://www.trenttube.com/Trent/tech_form.htm

 

[metman]

I concur with McGuire’s comment about potential splitting of 303. Also I am not sure there would be any reason to use free machining S.S. except for a machining application especially since EdStainless is pointing to the standard S.S. for rivets.

Passivation is one of the most common surface treatments for enhancing corrosion resistance of S.S. but I would be most interested in hearing suggestions by others for your particular application. Please elucidate with respect to environment.