"Roll cage" welding/fab ....
NHRA used to offer specs.
Was .090" wall thickness for some. ... That might tend to get hot, if sustained. Might plan coffee breaks, accordingly? (just noodling the details.)
__________________
Kent
http://www.tinmantech.com
"All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919.
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