Select ER70S-3

Carbon Steel / Solid / Gas Shielded

Resources

Features

  • A carbon steel, solid “MIG wire” electrode with copper coating, for gas shielded arc welding.
  • Moderate levels of manganese and silicon compared to 70S-6 electrodes reduces silicate slag on weld deposit which minimizes postweld cleanup.
  • Excellent feedability and welding.
  • Intended for welding carbon steels, such as ASTM A36, A515, A516, and A572.
  • Smaller diameters (1/16” or smaller) can be pulse welded in all positions.

Standard Diameters

in (mm)
  • 0.035 (0.9)
  • 0.045 (1.2)

Welding Positions

All Positions

Shielding

  • 100% CO₂
  • 75-95% Ar/Balance CO₂
  • 95-98% Ar/Balance O₂
    Flow Rate: 40 – 50 CFM

Polarity

DCEP

Conformances

  • AWS A5.18
    • ER70S-3
    • TYPICAL WIRE CHEMISTRY (WT%)
    Shielding Gas C Cr Cu Mn Mo Ni P S Si V
    N/A 0.07 0.02 0.17 1.30 <0.01 0.01 0.01 0.02 0.70 <0.01
    Typical Mechanical Properties
    Shielding Gas Tensile Strength
    ksi (MPa)    		 Yield Strength
    ksi (MPa)    		 Elongation
    (%)    		 WeldCondition PWHTTemp Charpy V-Notch
    0 °F ft⋅lb (-18 °C J)
    100%CO2 74 (510) 61 (421) 30 As-Welded – –
    Recomended Welding Parameters
    Diameter
    in (mm)    		 Shielding Gas Position Wire Feed Speed
    in/min (m/min)    		 Amps Volts Contact Tip to Work Distance
    in (mm)
    0.035 (0.9) 90% Ar/10% CO₂ Flat & Horizontal 380 (9.7) 175 25 3/8 – 5/8 (10 – 16)
    0.035 (0.9) 90% Ar/10% CO₂ Flat & Horizontal 450 (11.4) 230 27 3/8 – 5/8 (10 – 16)
    0.035 (0.9) 90% Ar/10% CO₂ Flat & Horizontal 550 (14.0) 250 29 1/2 – 3/4 (13 – 19)
    0.035 (0.9) 90% Ar/10% CO₂ Flat & Horizontal 625 (15.9) 275 30 1/2 – 3/4 (13 – 19)
    0.045 (1.2) 90% Ar/10% CO₂ Flat & Horizontal 310 (7.9) 240 26 1/2 – 5/8 (13 – 16)
    0.045 (1.2) 90% Ar/10% CO₂ Flat & Horizontal 375 (9.5) 275 28 1/2 – 5/8 (13 – 16)
    0.045 (1.2) 90% Ar/10% CO₂ Flat & Horizontal 450 (11.4) 325 29 5/8 – 3/4 (16 – 19)
    0.045 (1.2) 90% Ar/10% CO₂ Flat & Horizontal 550 (14.0) 375 30 5/8 – 3/4 (16 – 19)

    Packaging (lbs (kg))

    33 (15) Spools, 60 (27.2) Coils, 500 (226.8) Round Drum, 800 (362.9) Hex Drum, 900 (408.2) Hex Drum

    *Some packaging options may not be available depending on diameter and product. Special package options may be available upon request.