Originally Posted by Scooper

A year or so ago, right after Reynolds introduced 921, I put together this chart comparing the five then currently available stainless tubesets using manufacturers' literature for standards, physical properties, and chemistry. I haven't updated it yet to reflect KVA's MS3 which replaces MS2.

I found it interesting that 953 is 1.5% - 1.8% titanium (by weight).