Select 720A

Carbon Steel / Flux Cored / Gas Shielded


Features

  • Designed for single and multiple pass welding of carbon steels, such as ASTM A36, A285, and A515-Gr 70
  • Can be used with either 100% CO₂ or 75-80% Ar/balance CO₂
  • Improved arc stability at lower amperage/voltage settings allows for welding on thinner sections
  • Intended for welding structural steel and general fabrication, especially on thinner gauges, down to 3/16 inch.
  • Typical applications are railcar construction, pipe welding, and offshore platform construction

Standard Diameters

in (mm)
  • 0.035 (0.9)
  • 0.045 (1.2)
  • 0.052 (1.3)
  • 1/16 (1.6)

Welding Positions

All Positions

Shielding Gas

  • 75-80%Ar/Balance CO₂
  • 100% CO₂
    Flow Rate: 40 – 50 CFM

Polarity

Direct Current Electrode Positive (DCEP)

Conformances

  • ASME SFA 5.20
    • E71T-1C
    • E71T-1M
    • E71T-9C
    • E71T-9M
  • AWS A5.20
    • E71T-1C
    • E71T-1M
    • E71T-9C
    • E71T-9M
  • TYPICAL WELD DEPOSIT CHEMISTRY (WT%)
    Shielding Gas C Cr Cu Mn Mo Ni P S Si V
    100% CO₂ 0.05 0.06 0.03 1.21 0.00 0.02 0.008 0.010 0.38 0.02
    75% Ar/25% CO₂ 0.05 0.05 0.03 1.37 0.00 0.02 0.008 0.009 0.42 0.02
    Typical Mechanical Properties
    Shielding Gas Tensile Strength
    ksi (MPa)
    Yield Strength
    ksi (MPa)
    Elongation
    (%)
    WeldCondition PWHTTemp Charpy V-Notch
    -20 °F ft⋅lb (-29 °C J)
    100%CO2 83 (572) 75 (517) 28 As-Welded 58 (79)
    75%Ar / 25%CO2 87 (600) 78 (538) 27 As-Welded 59 (80)

    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.