Don,
Check the archive - this was discussed a loooooooooog time ago.
Dave Patrick Chelsea, Michigan
Donald Gillies <gillies@cs.ubc.ca> wrote: Has Reynolds discontinued regular production of all its manganese-molybdenum tubing? Reynolds 531 is gone, Reynolds 753 is gone. Available by special order, but otherwise gone. My understanding is that 525, 631, 725, and 853 are all chromoly tubing for the purposes of TIG-welding.
Has Reynolds given up on its heritage alloy altogether ??
- Don Gillies
San Diego, CA