Select 720

Carbon Steel / Flux Cored / Gas Shielded

Resources

Features

  • Designed for ease of welding in all positions.
  • Arc transfer is soft; resides on the puddle in a small to medium droplet transfer.
  • Mechanical properties exceed the minimum AWS requirements and rival E7018 electrodes.
  • Intended for use with 100% CO₂ or 75-80% Ar/balance CO₂.
  • Excels in general fabrication, structural steel, and shipbuilding applications.
  • Although a dual gas electrode, it is optimized for use on 75-80% Ar/balance CO₂.

Standard Diameters

in (mm)
  • 0.035 (0.9)
  • 0.045 (1.2)
  • 0.052 (1.3)
  • 1/16 (1.6)
  • 5/64 (2.0)

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-H8
    • E71T-1M-H8
    • E71T-9C-H8
    • E71T-9M-H8
  • AWS A5.20
    • E71T-1C-H8
    • E71T-1M-H8
    • E71T-9C-H8
    • E71T-9M-H8
  • AWS A5.36
    • E71T1-C1A2-CS1-H8
    • E71T1-M21A2-CS1-H8
  • AWS D1.8
    • 0.045 in (1.2 mm), (100% CO₂)
    • 0.045 in (1.2 mm), (75% Ar/25% CO₂)
    • 0.052 in (1.3 mm), (100% CO₂)
    • 0.052 in (1.3 mm), (75% Ar/25% CO₂)
    • 1/16 in (1.6 mm), (100% CO₂)
    • 1/16 in (1.6 mm), (75% Ar/25% CO₂)
    • Approvals
    Agency Approval Shielding Gas Diameter(s)
    in (mm)
    ABS 3YSA C1 (100% CO₂) 0.035 (0.9) – 1/16 (1.6)
    ABS 3YSA M21 (75% Ar/25% CO₂) 0.035 (0.9) – 1/16 (1.6)
    CWB E491T1-C1A3-CS1-H4 C1 (100% CO₂) 0.035 (0.9) – 5/64 (2.0)
    CWB E491T1-GA3-CS1-H4 G (Gas Mixture*) 0.035 (0.9) – 5/64 (2.0)
    TYPICAL WELD DEPOSIT CHEMISTRY (WT%)
    Shielding Gas C Cr Cu Mn Mo Ni P S Si V
    100% CO₂ 0.04 0.05 0.04 1.18 0.01 0.01 0.015 0.010 0.50 0.02
    75% Ar/25% CO₂ 0.04 0.06 0.03 1.46 0.00 0.02 0.016 0.010 0.55 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)    		 Charpy V-Notch
    -20 °F ft⋅lb (-29 °C J)
    100%CO2 86 (593) 77 (531) 27 As-Welded – 80 (108) 69 (94)
    75%Ar / 25%CO2 93 (641) 84 (579) 26 As-Welded – 95 (129) 74 (100)
    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) 100% CO₂ All Positions 275 (7.0) 120 23 1/2 – 5/8 (13 – 16)
    0.035 (0.9) 100% CO₂ All Positions 320 (8.1) 135 24 1/2 – 5/8 (13 – 16)
    0.035 (0.9) 100% CO₂ All Positions 420 (10.7) 160 26 1/2 – 5/8 (13 – 16)
    0.035 (0.9) 100% CO₂ Flat & Horizontal 465 (11.8) 180 27 5/8 – 3/4 (16 – 19)
    0.035 (0.9) 100% CO₂ Flat & Horizontal 570 (14.5) 200 29 5/8 – 3/4 (16 – 19)
    0.045 (1.2) 100% CO₂ All Positions 200 (5.1) 145 23 1/2 – 5/8 (13 – 16)
    0.045 (1.2) 100% CO₂ All Positions 235 (6.0) 160 24 1/2 – 5/8 (13 – 16)
    0.045 (1.2) 100% CO₂ All Positions 300 (7.6) 185 26 1/2 – 5/8 (13 – 16)
    0.045 (1.2) 100% CO₂ Flat & Horizontal 375 (9.5) 215 27 5/8 – 3/4 (16 – 19)
    0.045 (1.2) 100% CO₂ Flat & Horizontal 440 (11.2) 235 29 5/8 – 3/4 (16 – 19)
    0.052 (1.3) 100% CO₂ All Positions 170 (4.3) 155 23 5/8 – 3/4 (16 – 19)
    0.052 (1.3) 100% CO₂ All Positions 200 (5.1) 175 24 5/8 – 3/4 (16 – 19)
    0.052 (1.3) 100% CO₂ All Positions 250 (6.4) 225 26 5/8 – 3/4 (16 – 19)
    0.052 (1.3) 100% CO₂ Flat & Horizontal 310 (7.9) 250 27 3/4 – 1 (19 – 25)
    0.052 (1.3) 100% CO₂ Flat & Horizontal 395 (10.0) 280 29 3/4 – 1 (19 – 25)
    1/16 (1.6) 100% CO₂ All Positions 125 (3.2) 165 23 5/8 – 3/4 (16 – 19)
    1/16 (1.6) 100% CO₂ All Positions 150 (3.8) 195 24 5/8 – 3/4 (16 – 19)
    1/16 (1.6) 100% CO₂ All Positions 185 (4.7) 225 26 5/8 – 3/4 (16 – 19)
    1/16 (1.6) 100% CO₂ Flat & Horizontal 265 (6.7) 280 27 3/4 – 1 (19 – 25)
    1/16 (1.6) 100% CO₂ Flat & Horizontal 325 (8.3) 320 29 3/4 – 1 (19 – 25)
    5/64 (2.0) 100% CO₂ All Positions 100 (2.5) 195 23 3/4 (19)
    5/64 (2.0) 100% CO₂ All Positions 110 (2.8) 210 24 3/4 (19)
    5/64 (2.0) 100% CO₂ All Positions 130 (3.3) 240 26 3/4 (19)
    5/64 (2.0) 100% CO₂ Flat & Horizontal 200 (5.1) 310 27 1 – 1 1/4 (25 – 32)
    5/64 (2.0) 100% CO₂ Flat & Horizontal 225 (5.7) 350 29 1 – 1 1/4 (25 – 32)

    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.