We have some copper strip material that has been specified as "1/4 hard", but some people here think that it in fact is "1/2 hard", and thus we need a longer anneal time.
I'm not familiar with the designations '1/4 hard' and '1/2 hard'. Can someone explain to me what these mean?
Thanks!
I want to measure the pressure inside of a small thin-walled cylindrical pressure vessel with strain gauges. It's a battery can, and during safety tests it heats up, so I want to lay out my Wheatstone bridge circuit such that thermal effects can be canceled. The only way I can think of doing...
