Just got a repeat order on these. I do a batch several times a year. These pics are the last time I did the job. My customer does all the machining & I just weld. The material is inconel 625 although this time they are switching to inconel 600 due to cost. The 625 tubing went from $28 a foot to $62 a foot now. The 600 series tube is $34 a foot. 1/2" x .0625 wall tube & small machined end pcs.1221101131.jpg1221101110a.jpg1221101130.jpg