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ER70S-6 | Mild Steel | MIG Welding Wire

ER70S-6 is a copper-coated AWS ER70S-6 welding wire, suited for general purpose fabrication of mild steel. The additional deoxidizers also provide better wetting, giving a flatter bead shape and the capabilityof faster travel speeds. It is manufactured under WeldingCity's Quality Control programs and meets AWS standards AWS A5.18 ER70S-6.

Class: ER70S-6

AWS: A5.18

Conforms to Certification: AWS A5.18           ASME SFA A5.18

Weld Process Used for Mig (GMAW)

AWS Chemical Composition Requirements
C = 0.06 – 0.15 Ni = 0.15 max
Mn = 1.40 – 1.85 Cr = 0.15 max
Si = 0.80 – 1.15 Mo = 0.15 max
P = 0.025 max V = 0.03 max
S = 0.035 max Cu = 0.50 max

Available Sizes
.023 x 2#, 11#,
.030 x 2#, 11#,
.035 x 2#, 11#,
.045 x 2#, 11#,

Application
Type ER70S-6 is a wire with higher levels of Deoxidizers welding of steels with moderate amounts of scale or rust. (Mn & Si) compared to other carbon steel wires. This wire is suitable for welding of steels with moderate amounts of scale or rust.

For Mig welding use Carbon Dioxide or Argon + Co2 or Argon + 2% Oxygen as shielding gases.

Deposited Chemical Composition % (Typical)
C = 0.09 P = 0.012 Si = 0.95
Mn = 1.65 S = 0.018 Cu = 0.35

 

Deposited All Weld Metal Properties % (As Welded) 
Tensile Strength 78,000 psi
Yield Strength 65,500 psi
Elongation 24%

Deposited Charpy-V-Notch Impact Properties %
45 ft. lbs. (at -20ºF)

Recommended Welding Parameters (GMAW “Mig Process”)
  Wire Diameter Volts Amps IPM
Short Arc Welding .030 16 – 18 75 – 125 176 – 324
  .035 15 – 18 100 – 160 132 – 228
  .045 17 – 18 100 – 120 149 – 208
Spray Arc Welding .030 26 – 28 200 560
  .035 27 – 29 250 504
  .045 28 – 31 265 336
  .052 29 – 31 300 – 340 280 – 350
  1/16 30 – 36 350 – 400 220 – 280