Finalreminder
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Does anyone buy there mig wire offline? if so, where from?
Also, whats a fair price for 5KG 0.8 mild steel wire?
Also, whats a fair price for 5KG 0.8 mild steel wire?
Will the price of wire vary greatly though as it is copper?
...slightly off topic, but does the (incredibly thin) copper coating have much affect on the properties of the weld? Are there some codes/applications where non-coated is essential?
£12 ish for 5kg at Wellington Welding last time I was in there (just before Christmas).Does anyone buy there mig wire offline? if so, where from?
Also, whats a fair price for 5KG 0.8 mild steel wire?
Uncoppered or Copper Free wire has a coating, it would quickly go rusty without, which is usually Zinc Phosphate.
I dont know of any
The Cu content is limited by specification to the combination of the combined Copper with that of the coating.
In other words the steel also contains some Copper and dependent on where the steel is produced you could have non-copper coated with a higher copper content than copper coated wire.
Copper in steel can cause hot shortness, cracking at high temp due to the lower melting point copper. I cant remember the level of Copper needed to make it crack but CORTEN steels are often welded with an alloy steel conatining 1%Ni and 0.5%Cu.
Uncoppered or Copper Free wire has a coating, it would quickly go rusty without, which is usually Zinc Phosphate.
We use the Esab autorod 12.50, thats a non coated wire. A brief write up comparing here
Garvey, just for your info mate, mig lcs wire is copper coated only, you can purchase non-coated if required.
Copper coating helps prevent corrosion, also help when arcing up as copper has good electrical conductivity.
HTH?
Cheers........
It does help, thanks.
I'm new to welding so it was just a guess
Al, am I remembering rightly that Copper free wire was recommended for high amperage welding and high deposition welding?
If so, why was that?
If any of the above is more rubbish than usual please blame Stella