need to get some more mig wire (for heart attack google machine mart /mig wire)
i have some stainless to weld to mild,ive done it before with mild wire,can i use stainless wire with co2 to get a better (rust proof) weld?

http://www.machinemart.co.uk/shop/search/filter/mig%20wire/page/2


this was the page that popped up for me

CO2 will give carbon stained welds even with stainless wire, pure argon is cleaner. I bought a 5kg roll of mild steel wire from my supplier for £12 a couple of months ago so they are not too bad.

ok mild it is then

You need an argon+CO2 mix for SS really.

TBH if you weld it with mild wire it'll "take on" some of the properties of the metal being welded. If you weld SS with mild wire, the weld seems to rust much less than if you'd welded mild steel.

309 wire required for welding ms to ss


Paul G

Soooo, (he says trying desperately to not sound daft) what'll happen to the welds I did on my exhaust (ss to mild) using mild wire ? Thay seem OK at the mo', but they're not exactly structural.