[Public-List] questions about bronze fasteners

Tue May 10 06:01:28 PDT 2011

Hello friends - I just realized I made a number of grammatical errors in my
tirade below that make my meaning tough to determine.  If anybody is
interested in what I was trying to say, the version below may be clearer....

Sorry.

Gord

On 10/05/11 8:54 AM, "Gordon Laco" <mainstay at csolve.net> wrote:

> This is an interesting topic.
> 
> Stainless steel is not particularly 'strong'.... But due to it's appearance
> and longevity in rigging, it is now used almost exclusively.   Most sailors
> today can't believe that galvanized steel rigging is considerably more
> suitable for rigging than SS.  This is because SS is so brittle and prone to
> metal fatigue in comparisine to galvanized steel or iron...  In particular
matrix's (ie 7x7) galvanized steel or iron rigging is considerably stronger per
> diameter than SS.
> 
> There are alloys of bronze that are 'stronger' than stainless steel... An
> example would be aluminium bronze.  However, most such alloys are
> considerably more expensive than stainless steel.   Because there are so
> many alloys of bronze available, it is important to have good reasons to
> have faith in the veracity of your bronze gear's maker's claims of what
> alloy they supply.  That's a whole separate topic and I have amusing stories
> I could tell with a beer in front of me.
> 
> Much is sometimes made of 'high quality' 316 grade stainless steel vs 'lower
> quality' 304 grade stainless steel.   An interesting fact is that while 316
> will look shinier for longer; It is more brittle than the softer and
> somewhat less corrosion-proof, and cheaper 304.  304 is stronger per diameter
even though it
> won't look as good after years in service.
> 
> Another issue with stainless steel is that it needs to be exposed to O2 in
> air for the anti-corrosive properties 'work'.  It is for this reason that
> appropriate alloys of bronze are better for fastenings in places where they
> will live buried in the materials they hold or underwater, than stainless
> steel.  So wrapping it with too much tape,  or putting plastic bags over
> various rigging components (or anything) during winter lay-ups are counter
> productive practices when dealing with stainless steel rigging.
> 
> And so on....
> 
> Gord #426 SURPRISE
> 
> 
> 
> On 10/05/11 5:57 AM, "Jeffrey" <fongemie at gmail.com> wrote:
> 
>> I agree Michael. What I don't like about working with stainless is
>> that while I'm sure it is stronger, it gives no feedback to when it
>> fails. For example, when putting screws into a hard wood, stainless
>> goes in ok right up to the point where it snaps the head off or strips
>> the head. With bronze, it seems that you can feel it start to stress,
>> as if the head is twisting a little, then springs back. It is subtle,
>> but I do notice it. Gives you the chance to make a correction, drill a
>> better pilot hole etc.
>> 
>> -Jeff Fongemie
>> #116 Seagrass
>> 
>> http://picasaweb.google.com/fongemie
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> On Mon, May 9, 2011 at 9:58 PM,  <crufone at comcast.net> wrote:
>>> 
>>> 
>>> Brian,
>>> 
>>> I don't believe that Stainless holds up well in a salt water environment.
>>> As with Bronze there are many alloys of Stainless. Some are more salt water
>>> resistant than others. But if I had the choice between silicon bronze and
>>> stainless fasteners for the same application I would always choose silicone
>>> bronze.
>>> 
>>> Michael #133
>>> ----- Original Message -----
>>> From: "brian curry" <brian_curry at hotmail.com>
>>> To: public-list at lists.alberg30.org
>>> Sent: Monday, May 9, 2011 4:40:30 PM
>>> Subject: [Public-List] questions about bronze fasteners
>>> 
>>> 
>>> Hi everyone,
>>> 
>>> Looking for some help here.  I am looking to do several projects with the
>>> wood on my boat and am wondering is anyone can give me answers to some
>>> questions:
>>> 
>>> 1.  Without measuring, does anyone know offhand how many sizes and lengths
>>> of
>>> fasteners are used on our A 30s?
>>> 
>>> 2. Are silicon bronze fasteners the same as bronze fasteners?
>>> 
>>> 3.  Where is the best place to buy bronze fasteners?  I have been looking
>>> online at Jamestown Distributors (example box of 100 #8 x 1/2 is $8.70/box.)
>>>  I would like to buy basically what I would need, meaning various sizes, to
>>> use on the boat.
>>> 
>>> Finally if anyone has another idea INSTEAD of bronze fasteners, please let
>>> me
>>> know.
>>> 
>>> Thanks,
>>> 
>>> Brian Curry
>>> Tampa Fl
>>> Makai 151
>>> 
>>> 
>>> 
>>> Brian Curry, Executive Director
>>> The Sustany Foundation
>>> www.sustany.org
>>> 
>>> 
>>> 
>>> 
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>> 
>> 
> 
> 
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