[Public-List] Propeller Shaft Material

[Gordon Laco]

Hello -

I have aluminium bronze in 1 1/2" rod in stock; I use it to fabricate  
custom large turnbuckle studs and lifeline stanchions.  Alum Bronze is  
a particularly hard alloy but that said, I think a 316 grade stainless  
shaft will be superior in most aspects including avoidance of galvanic  
corrosion and certainly wear.  The Achilles heel of 316 is that it is  
relatively brittle compared to galv steel or 304... but hardness and  
stiffness is what you want in a prop shaft.  Not malleability, which  
is what makes bronze alloys attractive.    If I were having a new  
shaft made I would use 316 stainless with no hesitation.

Cheers - Gord

#426 SURPRISE





On 5-Jan-10, at 2:14 PM, Michael wrote:

> It appears close to impossible to get brass or bronze 1" stock, so  
> the choice has been made for you. Do you have a line on bronze shaft  
> material?
>
> MichaelGrosh
> #220
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