Inweld 70S-6 contains higher levels of manganese and silicon than many other classifications of mild steel wires. The increased Mn and Si content gives stronger deoxidizing power when welding over mild or carbon steel that may have traces of rust or mill scale such as found on structural and plate steels. Inweld 70S-6 is used for single or multi-pass welding. An excellent choice for sheet metal applications, where the higher silicon content creates excellent “wetting out” properties and produces weld deposits that are essentially flat to slightly convex and require little or no grinding. Weld deposits are x-ray quality. Typical Weld Metal Properties AWS Spec Tensile Strength: 70,000 psi Yield Strength: 58,000 psi Elongation: 22% Charpy V-Notch at -20°F: 20 ft/lbs Recommended Parameters GMAW (DCEP - Electrode+) 100 % CO2 , or a 75-25% Argon/CO2 Mixture For Solid Wire, 98 % Argon / 2% CO2 Mixture For Spray Transfer Wire Diameter Voltage Amperage Wire Feed IPM 0.023” 14-19 30-85 360-620 0.030” 15-20 40-130 390-670 0.035” 16-25 60-235 360-520 0.045” 18-23 90-290 210-360 0.035” (Spray) 23-36 160-300 0.045” (Spray) 23-29 170-375 1/16” (Spray) 25-31 275-475 GTAW (DCEN - Electrode -) 100% Ar 2% Thoriated, or 1.5% Lanthanum Tungsten Electrode Material Tungsten Dia. Filler Wire Size Amperage Argon (CFH) 1/16” 1/16” 1/16” 100-140 20 3/32” 1/16” 1/16” 100-160 20 1/8” 3/32” 1/16” 125-200 20 3/16” 3/32” 3/32” 150-250 25 ¼” 1/8” 1/8” 150-250 25