ER70S6 vs ER70S2

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A pretty stupid question came up today in the shop... but alas no one knew the answerWhat is the difference between er70s6 and er70s2?I like to party!
Reply:-2 has titanium, zirconium and aluminum in it that -3 doesn't have.Edit; my bad...-3 doesn't have that stuff but neither does -6...sorry.Last edited by olddad; 03-05-2008 at 08:39 PM.Reason: goofed the numberAnything worth doing is worth doing RIGHT
Reply:S-6 flows a lot more than S-2.  S-2 is supposed to be for out of position welding.You talking MIG right?DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:I believe it is for different deoxidizers.  70s-6 has more deoxidizers than 70s-2.  meaning it is better on "dirtier" metal.I'm a Lover, Fighter, Wild horse Rider, and a pretty good welding man......
Reply:I don't have a clue but here is what Lincoln shows:ER70S2- compositon by %: C -0.07, Mn -0.90 t0 1.40, Si -0.40 to 0.70, Ti- 0.05 to 0.15, Zr o.o2 to o.12, Al 0.05 to 0.15ER70S6- compositon by %: C-0.07 t0 0.15, Mn- 1.40 to 1.85, Si- o.8o to 1.15, 0% of Ti,Zr, and Al.
Reply:Originally Posted by David RS-6 flows a lot more than S-2.  S-2 is supposed to be for out of position welding.You talking MIG right?David
Reply:I would say use what works for you.  I have S2 mig wire and I can't get it to weld for beans.  Been using s6 for too long.    For Tig, S2 works better, gives a less concave bead.Its a personal thing I guess.  Our LWS only has S6 in mig and tig filler.DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:Originally Posted by Hammack_WeldingI believe it is for different deoxidizers.  70s-6 has more deoxidizers than 70s-2.  meaning it is better on "dirtier" metal.
Reply:In addition, the lower silicon and manganese, as well as the lower cap on carbon, in the -2 have some desirable properties in some applications.
Reply:The "ER" in ER70S-2 means cut length TIG filler wire.E=electrode.R=cut length.70=70,000 psi tensile strength.S= solid rod no coating.-2= type of metals in the filler wire.Uses of S-2 or S-6 Not a stupid question at all.Last edited by Donald Branscom; 03-06-2008 at 08:57 PM.
Reply:Originally Posted by Donald BranscomThe "ER" in ER70S-2 means cut length TIG filler wire.E=electrode.R=cut length.70=70,000 psi tensile strength.S= solid rod no coating.-2= type of metals in the filler wire.Uses of S-2 or S-6 Not a stupid question at all.