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Kenvlach, Thanks for posting. Actually, the brass alloy was 377 Forgings per QQ-B-626 (not 360 alloy), my mistake. As it turns out, we resolved this problem, unexpectedly. Further examination of the failed samples revealed a surface mark (appearing like a crack), running along both sides of...

We have machined a hydraulic 90 deg elbow pipe fitting from 360 Brass Alloy (Size -16, 1" OD line) (aprox 600 elbows made). A sample of 13 was subjected to the Mercurous Nitrate Test (ASTM-B154) and 3 of 13 parts were observed to have cracks on the OD radius and wrench pad area. Can...

I have re-installed several times trying to fix this problem. When I click on the MDT6 or ACAD2002 icon (or try to start the program through the start menu)I immediately get this window message and cannot continue to load-up program. Please advise if problem is known ???? "ACAD caused an...

Your best bet for internal thread measurement is to look at either Johnson Gages or Bowers/Fowler Gages. I am in the aerospace hydraulic fitting industry where we manufacture 1000's of threaded parts (internal and external threads per AS8879)and use SPC controls to monitor Pitch Dia, Functional...