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Tenzaloy impeller

 
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sandman



Joined: 15 Jun 2005
Posts: 260
Location: The captains table
PostPosted: Fri Feb 02, 2007 5:39 pm    Post subject: Tenzaloy impeller Reply with quote
Anyone ever try one of these? What kind of alloy is it? Does anyone still make the steel impellers?
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DOC



Joined: 17 Jun 2005
Posts: 329
Location: Whitecourt
PostPosted: Sun Feb 04, 2007 6:45 pm    Post subject: Reply with quote
Never heard of it. Roger Kehoe is still building steel ones. I thought a while back somebody was gonna build or cast a titanium impeller ??
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allblowdup



Joined: 20 Jun 2005
Posts: 135
Location: Grande Prairie
PostPosted: Mon Feb 05, 2007 10:38 am    Post subject: Reply with quote
Aggressor uses it. It is a type of alum. It is quite a bit harder than alum but also way more brittle. Family boat maybe but definitely not a race boat.
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SouthIdahoGary



Joined: 15 Jun 2005
Posts: 295
Location: Wilder, ID, USA
PostPosted: Mon Feb 05, 2007 11:24 am    Post subject: Reply with quote
Here is a link that compares strength of various Aluminum sand castings.

http://www.alcast.com/material_specs.htm

Items cast from Tenzalloy Alloy #713 offer greater strength and corrosion resistance than Almag 35 which is the most common alloy for marine aluminum "things". (I do not know the aluminum alloy used for most impellers-most just say "Aerospace aluminum casting, heat treated and coated".) Tenzalloy increases in strength as it ages.
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DOC



Joined: 17 Jun 2005
Posts: 329
Location: Whitecourt
PostPosted: Thu Feb 08, 2007 4:53 pm    Post subject: Reply with quote
Increases in strength as it ages hhhmmmmnnnnn kinda like my p---s .
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