Welding Tips and Tricks

Can someone please tell me what the white substance along the edges of the weld is.

A570 GR 50
75/25
Lincoln 71A85 Ultracore FCAW G

Probably just contaminates from the steel being dirty. can you explain what where or when this is happening. a lot of times people over think the problem and it's something really simple to fix. this may be the case here.

are you running correct gas for the wire?

Yes 75/25

everything I've seen so far says high argon concentrations work best. the cfh rate is 40 to 50 also which is a higher flow. perhaps trying a higher concentrate of argon gas and check flowrate. other than that I'm still looking a bit. it's interesting because I've worked with guys who worked shipyards in Seward and I bet this wire is used. I wish someone else would stab at this with me.

could you try 85/15? here is just an explanation of the argon mixtures

Where did the metal come from? Is it steel or some grade of SS ? Is it galvanized or from a corrosive enviroment? I've seen some weird stuff bubble up through or from contaminated metals.

bigworm40 wrote: A570 GR 50
75/25
Lincoln 71A85 Ultracore FCAW G

here's his response from earlier

I was wondering if it was used and maybe permiated with some kind of chemical.

I would get two maybe 3 other pieces of test material and run a bead on each. that should give you a better idea what's going on.
I don't think you specified if it was giving you this with just the one material you posted a pic of or all pieces. if you're wanting to know what's bubbling out of the metal just out of curiosity then I totally missed that. ... and now I feel dumb haha