Originally Posted by neuropel
If you have a design for a turbo header that you're using in a GT, I'd be interested - steel would be fine but stainless steel would be superior.
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Make sure you guys are using the
same turbo then. Flanges differ, as do external dimensions, which will affect the clearance to other components.
I think mild steel would be fine, with a similar Swain coating.
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As long as it's
thick wall, then mild steel will be okay. Schedule 40 (.134" thick) steel pipe is okay in mild steel, but you can use schedule 10 (.109" thick) if you make in it with 304L stainless 'weld-L's'. Regular thin wall (.049" or .065") header tubing is a no-no! Or you can use .065" thin-wall if it's type 316 or 321 stainless, but at that point the materials will set you back $400-500 alone!