Oerlikon GS 3 description: GS 3 is coppered solid wire electrode for MAG welding of unalloyed and low-alloy steel types or cast steel up to 460 MPa yield strength. Suitable for CO2 and Ar/CO2 or Ar/CO2/O2 mixed gases. Good sub-zero toughness down to -40C. Low-spatter material transfer in short and spray arc.