MIG Filler Wire

Low carbon or mild steel filler wire specifications are found in the CSA standard W48.8 and in the AWS standard A5.18.

CSA

ER 480S-6

E = Electrode

R = The wire can be used as filler rod for TIG welding

480 = 480 MPa tensile strength

S = Solid wire

6 = Deoxidizers and other additions in the wire

AWS

ER 70S-6

E = Electrode

R = The wire can be used as filler rod for TIG welding

70 = 70,000 psi tensile strength

S = Solid wire

6 = Deoxidizers and other additions in the wire