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baker250r
07-18-2005, 06:05 PM
Where can I buy chromoly? and how much about is it? also can it be welded with a MIG welder, or do i gotta TIG it?
baker250r
07-18-2005, 07:17 PM
anybody?
07-18-2005, 07:25 PM
it is a ***** to machine. dont know about wielding it.
07-18-2005, 07:25 PM
mcmaster.com
BSTURDIVANT
07-18-2005, 07:27 PM
We buy 4130 tubing at a local stock car builder- he buys out of Pittsburgh. Better to tig, but even the stock car builder migs it! He does some welding on aircraft frames which require tig welding with certification.
baker250r
07-18-2005, 07:34 PM
64 bucks for a 6 inch piece?? is that right?
07-18-2005, 07:36 PM
wicked high grade. you can get standard grade for cheeper prolly. some bigger pices that are more standard can be cheeper. lol
protraxrptr17
07-18-2005, 07:51 PM
I wouldn't MIG it. Some people do, but I wouldn't. It's very sensitive to heat. If it cools too fast it will crack. You have more control of your heat with TIG.
BSTURDIVANT
07-19-2005, 02:14 PM
1 1/8" tubing runs about 7.00 per ft.
Waynno
07-19-2005, 09:40 PM
"Where can I buy chromoly?"

Check following link
http://www.aircraftspruce.com/catalog/mepages/4130tubing_un1.php

Chromoly tubing can be Migged or Tigged
I weld it both ways all the time. It can also be brased
Wayne
http://nosala.com/awPlug.htm