Does anyone have what "SR" stamp on a data plate would stand for? The tank was built back in 1954 by Chicago Bridge and Iron, but was not registered with the National Board. I assume it stands for Stress Relief, but I do not have a copy of the Code that goes that far back.
Thanks in Advance!
I want to use Butt caps for the heads of a 6" diameter tank. Which head type would one use in Compress for the calculation of a butt cap?
Thanks in Advance.