[Public-List] Propeller Shaft Material

[Laughing Gull]

My replacement was stainless. I did notice an increase in the speed the zinc deteriorated, but this has not been an issue. 

Jonathan Adams
Mobile: 443-538-7443
Composed on PDA

On Jan 5, 2010, at 2:44 PM, Gordon Laco <mainstay at csolve.net> wrote:

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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