Filler rods that can be used to MIG weld 4130 chromoly steel

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I would like to know about the type of filler rods that can be used to MIG weld 4130 chromoly steel?
Reply:tig rodstick rodmig wireO/A rodwww.georgesplasmacuttershop.comPlasma Cutter and Welder Sales and Repairs--Ebay storeTec.Mo. Dealer Consumables for the PT and IPT torch's
Reply:This guy^ awesome responseSent from my iPhone using Tapatalkif you can step across it I can weld it.
Reply:Mechanic416, do actually have some of those O/A rods? I was about to start thinking all we can do is braze and weld plastic. All the O/A rods I have been getting for years are sure plastic. I have tried them, but they do not hold too well.SA-250 TMDSquarewave 200Thunderbolt AC/DC1951 G.E. welder
Reply:Yep these O/A rods are getting harder and harder to find these days thanks to all the scrapers out there. Find most of them at yard sales and on evilbay.www.georgesplasmacuttershop.comPlasma Cutter and Welder Sales and Repairs--Ebay storeTec.Mo. Dealer Consumables for the PT and IPT torch's
Reply:thanks everyone for replying.Is MIG welding of 4130 steel better than TIG welding.
Reply:NO its not. You can weld 4130 anyway you want depending on what it is used for. I would tig it if I had the choice.Last edited by mechanic416; 05-31-2015 at 07:15 AM.www.georgesplasmacuttershop.comPlasma Cutter and Welder Sales and Repairs--Ebay storeTec.Mo. Dealer Consumables for the PT and IPT torch's
Reply:Originally Posted by inzamamnkrobthanks everyone for replying.Is MIG welding of 4130 steel better than TIG welding.
Reply:@ rhacobs - NASCAR Teams have MIG welded 4130 CrMo roll cages for years.  Why would you you even mention "stick" welding in the same sentence as TIG and 4130?"Discovery is to see what everybody else has seen, and to think what nobody else has thought" - Albert Szent-Gyorgyi
Reply:If your 4130 is heat treated it can be braze welded without destroying the heat treating, slightly easier than TIG. Anyway 70s-2 for TIG, 70-s6 for MIG. If you want the "best" Weld Mold 880 is highly regarded.Last edited by Brazin; 05-31-2015 at 05:24 PM.SqWave 200Millermatic 190Airco 200 ACHypertherm PM45Boice-Crane Band SawVictor O/A
Reply:There are some ump modified chassis builders using the mig process on chrome.
Reply:Originally Posted by ManoKai@ rhacobs - NASCAR Teams have MIG welded 4130 CrMo roll cages for years.  Why would you you even mention "stick" welding in the same sentence as TIG and 4130?
Reply:For NASCAR I didn't think they were allowed to use any alloy in the cages????
Reply:If your not going to have the parts stress relieved after welding then use regular 70-S2 or 70-S6 and move on. If you are going to stress relieve the parts then use a matching filler metal.