Welding chromoly

[ElPasoEric2005]

Can it be MIG welded or just TIG welded?

[Pin Head]

4130 can be MIG welded but it is not the preferred process and may not be allowed in competition or certain applications.

http://www.millerwelds.com/powerclick/powerclick_0307.html

[ElPasoEric2005]

Thanks, I was just planning on making some A arms for my banshee, I think the strength issue can be overcome with a few gussets with the ER80 wire. Thanks.

[geargrinder]

It is common practice in many fab shops to mig chassis and tig suspension.



:)

[PTSchram]

Back in the day, Oxy-Acetylene was the preferred method.

[drtywhtboy]

Eric, you can mig chromoly, but it will get brittle near the welds. You will have to take a torch and heat the tubing around the weld area slowly, backing the temperature down slowly, to stress relieve.