Steve Lusardi wrote:
One additional point, Monel is a stainless steel alloy.

Really? http://www.espi-metals.com/metals/monel.pdf
Alloy 400 has 2.5% iron and Alloy K-500 has 2%. A high copper steel
typically has less than 2% copper. Monel is around 30% and it's *NOT* a
steel!

It's primary use is
for high temperature strength and resistance to corrosion, 1000 degrees C
and higher.

540 deg C is in the middle of the heat treatment temperature range for
Monel K-500. 1000 deg C is around the temperature required to solution
anneal this alloy. Its properties are stable below 425 deg C.
http://www.hightempmetals.com/techdata/hitempMonelK500data.php

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





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