monel screws
 

Ezcellent? I don't think so. There are other materials far better for both
strength and corrosion resistance. There are reasons why they are hard to
find.
Steve

"Wolfram Fassbender" wrote in message
i.fu-berlin.de...

Has someone here an idea where to get screws from this excellent
material monel? Google-searches where not successful after all.

Thank you in advance,
-wolfram

monel screws
 

Strong AND corrosion-resistant!
I'm all ears! Bronze? Particular brasses? Not stainless nor alloy
steel nor mild steel certainly. Some aluminum alloys? possibly.
nickel alloys (other than monel??) Titanium??

Brian W

Steve Lusardi wrote:
Ezcellent? I don't think so. There are other materials far better for both
strength and corrosion resistance. There are reasons why they are hard to
find.
Steve

"Wolfram Fassbender" wrote in message
i.fu-berlin.de...
Has someone here an idea where to get screws from this excellent
material monel? Google-searches where not successful after all.

Thank you in advance,
-wolfram

monel screws
 

On Tue, 28 Apr 2009 19:20:25 -0500, Brian Whatcott
wrote:

Strong AND corrosion-resistant!
I'm all ears! Bronze? Particular brasses? Not stainless nor alloy
steel nor mild steel certainly. Some aluminum alloys? possibly.
nickel alloys (other than monel??) Titanium??

Brian W

Steve Lusardi wrote:
Ezcellent? I don't think so. There are other materials far better for both
strength and corrosion resistance. There are reasons why they are hard to
find.
Steve

"Wolfram Fassbender" wrote in message
i.fu-berlin.de...
Has someone here an idea where to get screws from this excellent
material monel? Google-searches where not successful after all.

Thank you in advance,
-wolfram

I typed "+wood screws +monel" into google and got 7,400 hits.

Seems like one of them might suit?


Cheers,

Bruce in Bangkok
(bruceinbangkokatgmaildotcom)

monel screws
 

Brian,
Please do the research if you disagree. Stainless fasteners exhibit far
greater strength and fatigue resistance, which by the way is poor for the
whole nickel alloy family and depending on the alloy, exhibit every bit as
good resistance to corrosion. May I also point out that nickel alloys
fasteners are not always the best solution for corrosive and electrolytic
environments and that includes monel. So, assuming your application
qualifies for a nickel alloy solution, why in the world would you choose
monel, when SS is better and less expensive?
Steve

"Brian Whatcott" wrote in message
...
Strong AND corrosion-resistant!
I'm all ears! Bronze? Particular brasses? Not stainless nor alloy steel
nor mild steel certainly. Some aluminum alloys? possibly.
nickel alloys (other than monel??) Titanium??

Brian W

Steve Lusardi wrote:
Ezcellent? I don't think so. There are other materials far better for
both strength and corrosion resistance. There are reasons why they are
hard to find.
Steve

"Wolfram Fassbender" wrote in message
i.fu-berlin.de...
Has someone here an idea where to get screws from this excellent
material monel? Google-searches where not successful after all.

Thank you in advance,
-wolfram

monel screws
 

Show me the stainless alloy that does not corrode when submerged for
long in salt water, and I'm your man.

BrianW

Steve Lusardi wrote:
Brian,
Please do the research if you disagree. Stainless fasteners exhibit far
greater strength and fatigue resistance, which by the way is poor for the
whole nickel alloy family and depending on the alloy, exhibit every bit as
good resistance to corrosion. May I also point out that nickel alloys
fasteners are not always the best solution for corrosive and electrolytic
environments and that includes monel. So, assuming your application
qualifies for a nickel alloy solution, why in the world would you choose
monel, when SS is better and less expensive?
Steve

"Brian Whatcott" wrote in message
...
Strong AND corrosion-resistant!
I'm all ears! Bronze? Particular brasses? Not stainless nor alloy steel
nor mild steel certainly. Some aluminum alloys? possibly.
nickel alloys (other than monel??) Titanium??

Brian W

Steve Lusardi wrote:
Ezcellent? I don't think so. There are other materials far better for
both strength and corrosion resistance. There are reasons why they are
hard to find.
Steve

monel screws
 

On Wed, 29 Apr 2009 11:57:55 -0500, Brian Whatcott
wrote:

Show me the stainless alloy that does not corrode when submerged for
long in salt water, and I'm your man.

BrianW

Actually quite a few. Even 304 does not corrode rapidly and I have a
316 propeller shaft that I installed 10 years ago and still exhibits
no corrosion.

What, exactly are you planning on using these fasteners for? Certainly
sufficient 3xx stainless is being used in the marine industry today
that you should have confidence that this alloy will resist corrosion
for a reasonable length of time.



Steve Lusardi wrote:
Brian,
Please do the research if you disagree. Stainless fasteners exhibit far
greater strength and fatigue resistance, which by the way is poor for the
whole nickel alloy family and depending on the alloy, exhibit every bit as
good resistance to corrosion. May I also point out that nickel alloys
fasteners are not always the best solution for corrosive and electrolytic
environments and that includes monel. So, assuming your application
qualifies for a nickel alloy solution, why in the world would you choose
monel, when SS is better and less expensive?
Steve

"Brian Whatcott" wrote in message
...
Strong AND corrosion-resistant!
I'm all ears! Bronze? Particular brasses? Not stainless nor alloy steel
nor mild steel certainly. Some aluminum alloys? possibly.
nickel alloys (other than monel??) Titanium??

Brian W

Steve Lusardi wrote:
Ezcellent? I don't think so. There are other materials far better for
both strength and corrosion resistance. There are reasons why they are
hard to find.
Steve
Cheers,

Bruce in Bangkok
(bruceinbangkokatgmaildotcom)

monel screws
 

Can I guess that you are relying on zincs near the prop shaft?
That would be the ONLY reason the pitting was not severe.

Brian W

Bruce in Bangkok wrote:
On Wed, 29 Apr 2009 11:57:55 -0500, Brian Whatcott
wrote:

Show me the stainless alloy that does not corrode when submerged for
long in salt water, and I'm your man.

BrianW

Actually quite a few. Even 304 does not corrode rapidly and I have a
316 propeller shaft that I installed 10 years ago and still exhibits
no corrosion.

What, exactly are you planning on using these fasteners for? Certainly
sufficient 3xx stainless is being used in the marine industry today
that you should have confidence that this alloy will resist corrosion
for a reasonable length of time.


Steve Lusardi wrote:
Brian,
Please do the research if you disagree. Stainless fasteners exhibit far
greater strength and fatigue resistance, which by the way is poor for the
whole nickel alloy family and depending on the alloy, exhibit every bit as
good resistance to corrosion. May I also point out that nickel alloys
fasteners are not always the best solution for corrosive and electrolytic
environments and that includes monel. So, assuming your application
qualifies for a nickel alloy solution, why in the world would you choose
monel, when SS is better and less expensive?
Steve

"Brian Whatcott" wrote in message
...
Strong AND corrosion-resistant!
I'm all ears! Bronze? Particular brasses? Not stainless nor alloy steel
nor mild steel certainly. Some aluminum alloys? possibly.
nickel alloys (other than monel??) Titanium??

Brian W

Steve Lusardi wrote:
Ezcellent? I don't think so. There are other materials far better for
both strength and corrosion resistance. There are reasons why they are
hard to find.
Steve
Cheers,

Bruce in Bangkok
(bruceinbangkokatgmaildotcom)

monel screws
 

On Wed, 29 Apr 2009 22:16:38 -0500, Brian Whatcott
wrote:

Can I guess that you are relying on zincs near the prop shaft?
That would be the ONLY reason the pitting was not severe.

Brian W

Of course there are zincs on the shaft - there is a bronze propeller
on the shaft too. But I have a stainless rudder post and a stainless
wind vane steerer shaft that do not have incompatible metals attached
and don't have zincs which don't have corrosion either.

But quit quibbling. I posted something about monel screws, there are
plenty of sources for them and whether you "need" them or not is of
course your decision.



Bruce in Bangkok wrote:
On Wed, 29 Apr 2009 11:57:55 -0500, Brian Whatcott
wrote:

Show me the stainless alloy that does not corrode when submerged for
long in salt water, and I'm your man.

BrianW

Actually quite a few. Even 304 does not corrode rapidly and I have a
316 propeller shaft that I installed 10 years ago and still exhibits
no corrosion.

What, exactly are you planning on using these fasteners for? Certainly
sufficient 3xx stainless is being used in the marine industry today
that you should have confidence that this alloy will resist corrosion
for a reasonable length of time.


Steve Lusardi wrote:
Brian,
Please do the research if you disagree. Stainless fasteners exhibit far
greater strength and fatigue resistance, which by the way is poor for the
whole nickel alloy family and depending on the alloy, exhibit every bit as
good resistance to corrosion. May I also point out that nickel alloys
fasteners are not always the best solution for corrosive and electrolytic
environments and that includes monel. So, assuming your application
qualifies for a nickel alloy solution, why in the world would you choose
monel, when SS is better and less expensive?
Steve

"Brian Whatcott" wrote in message
...
Strong AND corrosion-resistant!
I'm all ears! Bronze? Particular brasses? Not stainless nor alloy steel
nor mild steel certainly. Some aluminum alloys? possibly.
nickel alloys (other than monel??) Titanium??

Brian W

Steve Lusardi wrote:
Ezcellent? I don't think so. There are other materials far better for
both strength and corrosion resistance. There are reasons why they are
hard to find.
Steve
Cheers,

Bruce in Bangkok
(bruceinbangkokatgmaildotcom)

monel screws
 

316, 316l, 316Ti, but like Monel, these alloys are all subject to crevice
corrosion. Their corrosion resistance is due to their ability to absorb
oxygen on their surface and if under even mild abrasion or electrolysis and
the environment becomes oxygen depleted, they corrode very quickly. So, the
answer is to make certain that water flows around the fastener, anti sieze
is used on the threads and it isn't mounted near dissimilar metals and your
golden.
Steve

"Brian Whatcott" wrote in message
...
Show me the stainless alloy that does not corrode when submerged for long
in salt water, and I'm your man.

BrianW

Steve Lusardi wrote:
Brian,
Please do the research if you disagree. Stainless fasteners exhibit far
greater strength and fatigue resistance, which by the way is poor for the
whole nickel alloy family and depending on the alloy, exhibit every bit
as good resistance to corrosion. May I also point out that nickel alloys
fasteners are not always the best solution for corrosive and electrolytic
environments and that includes monel. So, assuming your application
qualifies for a nickel alloy solution, why in the world would you choose
monel, when SS is better and less expensive?
Steve

"Brian Whatcott" wrote in message
...
Strong AND corrosion-resistant!
I'm all ears! Bronze? Particular brasses? Not stainless nor alloy
steel nor mild steel certainly. Some aluminum alloys? possibly.
nickel alloys (other than monel??) Titanium??

Brian W

Steve Lusardi wrote:
Ezcellent? I don't think so. There are other materials far better for
both strength and corrosion resistance. There are reasons why they are
hard to find.
Steve

monel screws
 

One additional point, Monel is a stainless steel alloy. It's primary use is
for high temperature strength and resistance to corrosion, 1000 degrees C
and higher. It will retain 90% of its room temperature strength when red
hot.
Steve

"Steve Lusardi" wrote in message
...
316, 316l, 316Ti, but like Monel, these alloys are all subject to crevice
corrosion. Their corrosion resistance is due to their ability to absorb
oxygen on their surface and if under even mild abrasion or electrolysis
and the environment becomes oxygen depleted, they corrode very quickly.
So, the answer is to make certain that water flows around the fastener,
anti sieze is used on the threads and it isn't mounted near dissimilar
metals and your golden.
Steve

"Brian Whatcott" wrote in message
...
Show me the stainless alloy that does not corrode when submerged for long
in salt water, and I'm your man.

BrianW

Steve Lusardi wrote:
Brian,
Please do the research if you disagree. Stainless fasteners exhibit far
greater strength and fatigue resistance, which by the way is poor for
the whole nickel alloy family and depending on the alloy, exhibit every
bit as good resistance to corrosion. May I also point out that nickel
alloys fasteners are not always the best solution for corrosive and
electrolytic environments and that includes monel. So, assuming your
application qualifies for a nickel alloy solution, why in the world
would you choose monel, when SS is better and less expensive?
Steve

"Brian Whatcott" wrote in message
...
Strong AND corrosion-resistant!
I'm all ears! Bronze? Particular brasses? Not stainless nor alloy
steel nor mild steel certainly. Some aluminum alloys? possibly.
nickel alloys (other than monel??) Titanium??

Brian W

Steve Lusardi wrote:
Ezcellent? I don't think so. There are other materials far better for
both strength and corrosion resistance. There are reasons why they are
hard to find.
Steve