1100 all the way. 4043 ( and 4047) is actually an old alloy used for brazing believe it or not. Its high silicon content lowers the melting point below most wrought alloys, but it also makes the weld more brittle and unsatisfactory for sheet work. Your nose im guessing is either 2S or 3S as these were the most common at the time for body work, 1100 is the correct rod for it. Good Luck!Originally Posted by Little
-Aaron
Results 11 to 18 of 18
Thread: Alum pot metal rod and a torch
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05-31-2007, 03:06 PM #11
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06-07-2007, 05:11 AM #12
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this might be of interest.
http://www.harrisproductsgroup.com/c...lloys.asp?id=2
although not the site i was looking for so i'll keep looking.
thanks for the help
......or..........
hope i helped
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06-07-2007, 07:54 AM #13
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Originally Posted by fun4now
this might be of interest.
http://www.harrisproductsgroup.com/c...lloys.asp?id=2
although not the site i was looking for so i'll keep looking.
Yeah thats in the family of things to stay away from when doing sheet work or anything that moves. Brazing is normally used for putting in fuel filler necks and other bungs in tanks. 4047 is a great brazing alloy, as is 4043. Just use the old brazing formula flux and away you go.
-Aaron"Better Metalworking Through Research"
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01-02-2009, 12:12 PM #14
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HTS2000
Looks pretty amazing!
http://www.youtube.com/watch?v=fC9d1AroXR4RoyB
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01-03-2009, 11:01 AM #15
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See my previous posts in this thread about that stuff. Either weld it, braze it, or solder it....but stay the heck away from that stuff if you care about the part your working on. The real materials are less expensive anyway. Originally Posted by rbertalotto
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01-03-2009, 04:55 PM #16
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Now they are falling in love with that crap over at Hobart as well. Originally Posted by Aerometalworker
Sheesh
Anybody that did much repair learns to hate that junk pretty quick when you have to get it all out to fix it right.
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01-03-2009, 08:52 PM #17
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Are you using Kent's mystery flux or Allstate #? I'm proficient with TIG but I'd like to try my hand at gas welding AL. (A&P since '93)
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01-03-2009, 09:29 PM #18
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Matt, Originally Posted by MR.57
I use both, The Allstate # is 35 for the welding flux. I too started with Tig, then graduated to the torch for real professional work on sheet.
-Aaron"Better Metalworking Through Research"
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