Should i still use fluxcored on old metal, even with gas?

[Fixer]

I heard someone say there is flux cored wire for use with shielding gas - would it be better for old metal than flux-less, solid wire - I weld old cars and getting stuff more than 90% clean isn't always possible!
I take it there is a reason why you can't or shouldn't use fuxcored wire for gasless with shielding gas, or is there?

 

[Justme]

I think in USA they use a cored wire with gas but i dont think its the same as gasless wire.

Justme

 

[shenion]

Use ER70-6 wire. It has extra deoxidizers. I just used it and blasted right through some thin paint. I use Lincoln L-56, great stuff.

A good wire makes a difference. I use doff brand and it barely worked on new metal.

 

[Fixer]

Thanks guys. Shenion, do you think the wire you mention will be o.k for my SIP migmate 150? its upgraded/moded and has geat wire feed...although it is just a hobby welder.

oh, and what shielding gas do recomend for old metal?
Thanks

 

[shenion]

There is nothing special as far as the wire and the welder. It is just a very good type and brand of wire.

Not sure how easy it is to get Lincoln wire over there. Hobart is good also. But these are American brands, you can get it almost anywhere.

ER70-6 is what most people use. ER70-3 is supposed to be better for fab work.

 

[aametalmaster]

Look at the right side under Twenty Gauge wire, its for sheetmetal.
http://www.harrisproductsgroup.com/consumables/alloys.asp?id=11
That is a gas flux core wire that uses the same poliarty as steel with gas. I have some and use 75/25 gas with it. I also use the 75/25 gas with 70-S6 wire shenion said...Bob

 

[Fixer]

That looks like stuff for me right enough! I hope I can find it here in the u.k...thanks

 

[snowcat]

I use Bohler HV Duel cores for most new fab work, Which is cross referenced to be the same as the Hobart and the lincoln wires avaliable in the states...The wire is expensive I pay around the £70 mark for 15kg of 1.4...The bigest advantage I find is for verticals and overheads where the slag helps to hold the weld on the weave, also it goes it spray transfer at lower OVC's so its handy for destortion control...

I dont think for car type work it would make little diffrence,

A bohler agent should be able to cross refrence the wire the U.S guys have given you........

 

[Fixer]

thats great snowcat, I'll look them up - thanks