Try http://www.megafil.com
I had to scroll to the right side of the page to find how to get into the site, but maybe that just my computer settings.
This is the product page. The seamless FCAW we tried (MEgafil 821) ran very well, much more spray-like than the comparison ESAB 101-H4M.
http://www.drahtzug.de/produkt/subset.omeco?lang=EN&PHPSESSID=0d38c86d1d3bc33f4549f04dd76779d3
Regards,
Brian
What grade of wire? If you want a good seamless 70-series FCAW wire, check out Thermal Arc's SF-1A.
http://www.thermadyne.com/stdy/literature/pdf/data/84_9920.pdf
HTH
Why should this wire absolutely be seamless ?
Seamless wires have less filling capacity resulting in lower deposition rates !
Or are you thinking about moisture absorption problems ?
Not sure I would agree with the lower depostion rate comment.
Using the Megafil 821 (tensile ~ 95 ksi) we were achieving ~ 13-14 lb/hr welding pipe out of position (bottom to top - 5G??) We could not get any better than that with ESAB wire.
Is there some other experience or specifice application that suggests seamless is lower productivity than seamed FCAW wire?
Let's go back to basics about deposition rates :
(1) The deposition rate from cored wires relies upon the I2R heating effect wich is greater than with solid wires at a given current. With a solid wire the total cross section carries all of the current, but with cored wires all current is conducted by the (thin walled) tube. Therefore the current density and hence heating effect ensures a higher burn-off rate from cored wires.
(2) Seamless cored wires have a wide variety of fill percentages between 18-33% depending on the size. Closed butt and overlap cored wires have a fill percentage between 30-50% , resulting in a thinner wall size for the same diameter. The thinner wall section has the advantage of even higher current density and hence deposition rate.
Generally speaking a seamless flux cored wire has a lower deposition rate than closed wires.
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