Mild steel headers

[kingtut]

Looking to just repair the exhaust I have on my setup and would like to know what type of mild steel is usually used if it matters at all. I found some cheap A-513 mild steel but I looked that up and it's usually used for racks and frames. Not sure if that will be able to handle the heat and will just melt off onto my track. It's going right after my downpipe from the turbo so the gasses are still pretty hot I think.

Thanks in advance