How To Weld Cast Iron With Mild Steel. WelddotcomIn this episode we take a look at welding Cast Iron. Working at 95 Amps on DCEP Direct Current Electrode Positive will give great results.
2 Weld patches in place using short welds about 1 inch 25 cm long each. Dont heat over 1400 degrees F since that will put the material into the critical temperature range. You will more likely than not end up with Martensite weak and non machinable hard.
Welding cast iron has two schools of thought one is hot and the other is cold welding.
Preheating and slow cooling of the component is the crux for the cast iron welding procedure. 12 Months On Us. Turn your welders heat up somewhat past what your normanl setting would be for what ever thickness you are using. A few tacks and some hammering with a slag brush makes this an easy job.