Q & A details - Arc welding: DC needed for stainless steel?
Your current position: Tech Community > Answer > Q & A details
0861803284

Arc welding: DC needed for stainless steel?

1 answer Reward0 Remaining Time 0 Day

I am looking to weld some stainless steel using stainless electrodes. I was told that the arc welder needs to be able to run in DC in order to be able to weld stainless steel. Is this true? Or can you weld stainless steel with stainless electrodes with AC also? 

Other answers

  • 0861788249

    0861788249 2017-02-13 09:49:49

    Arc or "stick" welding is not ideal for stainless steel. It is advisable to use MIG or TIG welding instead, with argon shield gas. I would only advise manual arc welding as a last resort, or for field repairs. Expect corrosion issues, and issues with excessive oxidation and porosity in your stainless welds. Manual arc welding is a "dirty" process and simply does not protect the weld puddle well enough from oxidation and carbon pickup, which are especially damaging in sensitive stainless alloys. As to whether to use AC or DC for stick welding, you should consult the instructions found on the box of electrodes. If polarity and current recommendations cannot be found, then you should contact the manufacturer and get it in writing. You should probably not make welding decisions based on advice from a sales representative. Firstly is is not documented. Secondly, sales representatives are not legally liable for damages caused by weld failures, YOU are.

    [ More ] [ Close ]
    reply
    Answer0861788249:
    Answer
More

Wococarbide

Member login

shuriyouwu
Forgot password?

Join free

Reset Your Password

Email:

SMS code:

Send Code

New Password:

Submit