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There are additional treatments you can apply to stainless steel to make it more resistant to rusting. There's the passivation process that forms a very corrosi
by rtkwe 3y ago
There are additional treatments you can apply to stainless steel to make it more resistant to rusting. There's the passivation process that forms a very corrosion resistant (nearly impervious) film on the surface by depleting the iron in the top layers. It's expensive to do well though and the best methods produce some fairly toxic byproducts because it's done with nitric acid to get the best results.
- jtriangle 3y agoNitric acid is just faster, the passivation layer isn't better than you get with plain old citrc acid. Passivation isn't really enough for a car though, they basically get sand blasted while driving on the road, and every little pit is an area where the material would have to repassivate without rusting. SS301 isn't nearly as good at that game as some other alloys.