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Welding Stainless Steel

Welding Stainless Steel

Welding Stainless Steel

(OP)
I have a job where stainless steel plates will be welded to HSS, W shapes, and C shapes.

What electrodes should I be using?  My general steel notes say use E70, but I usually never have stainless on the job.  What should I put in my general note for weldining stainless to regular?

RE: Welding Stainless Steel

309L Alloy Welding Rod

RE: Welding Stainless Steel

(OP)
Thank you.

Can that 309L electrode also be used for welding stainless to stainless?  Or is that 308?

RE: Welding Stainless Steel

Yes 308 would be used to weld SS to SS
One would use 309 to weld SS to Carbon Steel

RE: Welding Stainless Steel

308 is the consumable generally used to weld type 304 and similar grades such as 301 and 302.  There are many other types of ss which require different consumables, so, please don't think 308 is a 'catchall'.  FYI, for most applications, 309 would be an acceptable choice for welding type 304, but, more costly due to the higher alloy content.

RE: Welding Stainless Steel

(OP)
Thanks again.

One other question - I have a general steel note that says W Shapes to be ASTM A992.  What should I include for structural stainless?  "All stainless steels to be 300 series"?
 

RE: Welding Stainless Steel

Try the company "Stainless Structurals" ( http://www.stainless-structurals.com/ ) for what can be supplied regarding stainless steel structural members.  

For smaller depth stainless members the sizes can be hot rolled (usually from India).  For larger sizes, they will be plates welded together.

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