http://www.usweldingcorp.com/
http://www.aircraftspruce.com/catalog/mepages/4130steelwire.php
I tried some, and my welds are better with it, but welder skill is the far
bigger variable.
________________________________
> Hi Chris, For some time now we (Farmers Air) have been doing our own
> repairs to our Landing gear and other Steel (mostly chromemoly 4130)
> structural components. We have recently gained certification to
> produce and use our own designed components. The problem that I have
> relates to locally welded components and the quality of the welding,
> by this I mean mostly the appearance of the weld (T.I.G) Even though
> the welders that we use are certified and the welds pass the ministry
> tests....the appearance leaves a bit to be desired, especially when
> compared to the welding you see produced by the various Hot Rod/Race
> Car Chassis builders in the US. The problem we have is getting
> information about what Filler Wire these guys in the States are using
> and (if any) special blend of Argon. The best Filler wire we have
> been able to get here is a generic type PZ6500 with 3 1/2% nickel
> mix. While this produces a reasonable looking Cap...it still falls
> somewhat short of what those American Race Car Chassis builders are
> producing. Is there any way you could find out for me just what it is
> that they use when welding 4130 Chromemoly tube. Cheers Warrick
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