QUESTION: Can stainless steel be welded to mild steel?

If so, is it a strong weld?

If so, can it be done with a stick welder?

Thank you for your time.

ANSWER: Hello Mike,

Yes they can be welded together and with a stick welder as well.

How and which stick you should use would depend on what shapes sizes and alloys are being welded together.

If you can go into greater detail, I may be able to assist further.

Note: I will out of town for 19 of the next 22 days.



---------- FOLLOW-UP ----------


thank you for the reply.

AS for the shapes--there will me round & square pipes and flats of different sizes.

Asfor the alloys, I really don't know how to answer that.

A fabricator told me that he made his motorcycle frame out of stainless steel.
I don't know what alloy the stainless is.

And the steel is a mild steel.

Can you tell what rods should be used by the info I gave?

Thank you.


Hi Mike,

As a general guide, I prefer to use a stainless bonding or filler rod & I try to keep 60% of the weld puddle in the 'plain' steel material. Make sure you have a bit of a bevel on the tube piece you are welding for some additional feed and blend. I typically do not stick-weld these together, however if you can run a good bead you should be fine.


All Answers

Answers by Expert:

Ask Experts


Dean Stewart


Architectural fabrication and application questions. Railing Specialist!! Self and professional instruction, in Stainless, Brass, Carbon, and Bronze Railings and fabrication. Please no "stick" or structural Q's!! TIG Welding of all metals except for Aluminum. TIG welding questions of all kinds.


16 Years of Architectural Field installation and fabrication.

NOMMA, metalfab workshop leader.

Certified in all aspects of railing engineering and welding for railings.

Awards and Honors
Architectural Design and Display "Top Job" award for 2 different projects.

©2017 About.com. All rights reserved.