Stainless steel is different than regular (clear?) steel because is is an alloy, or combination, of steel and other elements. Stainles steel has 15% chromium, which is very resistant to rust than regular steel. That is why stainless is more expensive
You would think that is the case, right? Well, it isn't. Steel rims are necessarily made of very thin sheet. This sheet, when formed into a rim tends to dent very easily. On top of that, because the material is so thin it can and does flex- a lot. Al...
I located several articles that address the isssue of welding dissimilar metals and have cited them below for you. I hope that they help you to resolve your question.