Roger all that Ken,
So true. There is lots of stainless out there that has been fine for decades and probably will be for a long time. Yet there is some that will let you down big time with no warning. Roger on the Ti too. Guess I'll have to stick to stainless or galv. As for galling, stainless is bad about that too. When I installed my prop shaft I had to slide the steel thrust bearing onto it about 12 feet. I did not lubricate the shaft the first attempt. That lead to lots of filing and emery cloth then a good film of grease. Even less major assemblies in stainless benefit greatly by some lubricant. Norm S/V Bandersnatch Lying Julington Creek 30 07.695N 081 38.484W > [Original Message] > From: Ken James <[EMAIL PROTECTED]> > To: <[email protected]> > Date: 8/20/2008 7:43:13 PM > Subject: Re: [Liveaboard] storm anchor > > > > Norm of Bandersnatch wrote: > > > > > > Stainless is sneaky, especially so when in contact with other metals. > > > > Practical Sailor did a anchor test a few issues ago and wrote about it. > > > > Crystal Spray, a Spray replica, had a stainless bobstay fitting turn to > > crap inside. Many experienced seamen distrust stainless in rigging and > > prefer galvanized, yet stainless use is very widespread. > > > > I suppose we should switch to titanium. I read some time ago that someone > > had come up with a cheap way to get titanium from the sea but have not hear > > anything further. > > I think it must depend to a large extent on the > alloys used, the installation and proper/improper > contact with other metals, and the quality of the > SS. I have SS rigging on my boat, now 36 years > old, no troubles. I was at one time an NDT > inspector and have done dye checks on it before, > no troubles but of course that by itself is not a > clean bill of health. > > Titanium is a very funny metal. When I raced > bikes, I got ti spokes when they first came out. > They would last during a very tough fast race, > then while cooling down going slow, suddenly PING! > Later I guess they changed the alloy because that > became much less of a problem, but ti is notorious > for 'notch fatigue'. I don't think I would trust > it for that application. Galling of turnbuckles > would also be a problem as ti galls easily.-Ken > > _______________________________________________ Liveaboard mailing list [email protected] To adjust your membership settings over the web http://www.liveaboardnow.org/mailman/listinfo/liveaboard To subscribe send an email to [EMAIL PROTECTED] To unsubscribe send an email to [EMAIL PROTECTED] The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ To search the archives http://www.mail-archive.com/[email protected] The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html
