Colm, building one of my 31′ trimarans, came up with two sources of thick wall stainless ruddershaft suppliers.
“I bought my 304 rudder shaft from tube service co: www.tubeservice.com. It was 299 for 6′ of 1.5 od with 0.375 wall. Recently I was quoted the same tube in 316 from penn stainless: www.pennstainless.com Quote was 380.
BTW, tube service sent me two 5′ pieces of 1.5 tube, .375 wall, for $178 ea. plus shipping. It is seamless, rather than welded.
I could see about a quote from http://www.tubeservice.com (your link above is broken, Kurt). I see a choice in some suppliers from welded tube vs. seamless. Welded ok? – assume seamless is more for sanitary uses (as a beer brewer) but could be wrong.
fixed it. thanks.
I used to know the difference. guess I need to google it now.