Thank you for all of the responses. The quantities of these parts should not exceed 1000. Some of these parts might serve as cosmetic parts, so both corrosion resistance as well as durability will be required. I was primarily looking for a quick cost vs. quality/performance comparison, which...
I am looking for the most cost effective way to apply an opaque, black finish on some steel sheetmetal parts. I am considering powder coating, paint or black oxide. Which one of these are most cost effective?