Class: ER70S-3

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 = 0.90 – 1.40	Cr = 0.15 max
Si = 0.45 – 0.75	Mo = 0.15 max
P = 0.025 max	V = 0.03 max
S = 0.035 max	Cu = 0.50 max

Available Sizes
.023 X 11#, 33#
.035 X 11#, 33#
.045 X 11#, 33# & 60# Coils

Application
Type ER70S-3 is a 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 = 0.07	P = 0.012	Si = 0.52
Mn = 1.19	S = 0.022	Cu = 0.40

 

Deposited All Weld Metal Properties % (As Welded)
Tensile Strength	75,500 psi
Yield Strength	61,500 psi
Elongation	23%

Deposited Charpy-V-Notch Impact Properties %
35 ft. lbs. (at 0ºF)

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