Metalguy,
Yes you are quite correct it was my mistake, an AC coil is widely used for demagnetisation, a simple mistake.
Someone else in the thread had stated that he probably had 10 - 15% Fe, that was my point,
Therefore 65% Fe (in same phase) as opposed to 15% Fe in any alloy = stronger...
ka4huskyhawk,
In your manufacturing process, do you pickle the finished boxes and then fresh air passivate?
316L contains upto about 68% Fe and I calculate yours to contain approx 65%. If the in house QC did not wrap the boxes in polythene after P & P and subsequently they have been exposed to...
James,
My company has recently been using some very sensitive thermal imagery equipment which is hand held for offshore riser inpection in the gulf of mexico.
In your particular situation,
If the fluid in the inner line is at an elevated temperature and under pressure and is leaking at...