Treb,
About 15years ago, we were making some parts for a customer out of 316 stainless. They had 2ea oring seal grooves that required a 32 finish. We polished the oring grooves and kept seeing these inclusions that wouldn't polish out. You could see them without magnification. With magnification, they looked like 1/8" to 3/16" long cracks. We sent them to the lab and the problem was sulfur content. When we looked at the certs, yep, sulfur was high. They were called sulfur stringers and I sure wouldn't want them in a barrel!
We paid hell getting compensated from the material supplier for the parts, but in the end it came out ok.
Last edited by ithaca1; 02/02/16 08:38 PM.
