What happens to recycled metal?
Corrosion issues are more a matter of a failure of the coatings applied to the panel rather than the content of the material, but once the coatings fail, the rate of the corrosion can be influenced by the alloy content. Alloying materials whether intended or incidental affect characteristics relevant to the forming, welding and machining of the material. While you can alloy a crucible of basic low carbon wrought iron ultimately to a high grade stainless steel, doing so affects all of the other physical charateristics as well. Even so- stainless steel will ultimately corrode away. The issues with GM and Ford paint failures resulted in some recalls in order to remedy some of the paint failures, but not all of them. How panels and cars are made can affect where they will likely rust out, AMC had a problem with the upper portions of fenders rusting away in the 1970’s instead of the lower fender areas due to the assembly of the vehicle. If a scrap yard can easily sort their metals to a more