ER70S-2

Class: ER70S-2
AWS: A5.18

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

Weld Process Used for Mig: (GMAW)

AWS Chemical Composition Requirements
C = 0.07 max Ni = 0.15 max Cu = 0.50 max
Mn = 0.90 – 1.40 Cr = 0.15 max Ti = 0.05 – 0.15
Si = 0.40 – 0.70 Mo = 0.15 max Zr = 0.02 – 0.12
P = 0.025 max V = 0.03 max Al = 0.05 – 0.15
S = 0.035 max

Available Sizes
.035 x 2#, 11#, 33#
.045 x 2#, 11#, 33#
1/16 x 33#

Application
Type ER70S-2 is a triple deoxidized steel welding wire for tig and mig welding applications.

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

Deposited Chemical Composition % (Typical)
C = 0.05 P = 0.012 Al = 0.09
Mn = 1.15 Ti = 0.06 Cu = 0.35
Si = 0.45 S = 0.012 Zr = 0.04
Deposited All Weld Metal Properties % (As Welded)
Tensile Strength 74,800 psi
Yield Strength 62,000 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 – 220 149 – 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