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Welding/ Alloy type.
Posted: Sat Jun 04, 2016 8:11 am
by seef158
I am thinking about having a bow eye welded onto my 1978 28 express for trailering. Not sure I want to drill holes in the front end for the bolt through style if I don't have to. I want to quiz the guy I may have weld it as to if he knows proper technique for this alloy but I can't seem to find the alloy type in my research. What is the type of aluminum these boats are made out of again? Thanks!
Re: Welding/ Alloy type.
Posted: Sat Jun 04, 2016 10:56 am
by Fastjeff
Made of an aluminum, manganese, magnesium alloy called 5086 – H116.
The correct welding wire is 5356
Jeff (AKA Mr. Know it all)
Re: Welding/ Alloy type.
Posted: Sat Jun 04, 2016 11:33 am
by EWRice
Is this the same alloy they used for the struts?
Re: Welding/ Alloy type.
Posted: Sat Jun 04, 2016 3:05 pm
by Busia
The skin is 5086, extrusions for the stem and keel are something else. 5086 is hard to find, mostly 6061 is used, and the filler wire for a MIG gun is different like Jeff says. Here might be a pic of what I did. Strong enough to pick the boat up using the eye.
- Bow eye 12k.jpg (12.74 KiB) Viewed 8631 times
__Ed
Re: Welding/ Alloy type.
Posted: Sun Jun 05, 2016 5:36 am
by Fastjeff
Nice job on that trailer eye.
Jeff (crappy aluminum welder)