Select 720HP H4

Carbon Steel / Flux Cored / Gas Shielded


Features

  • Designed for single & multiple pass welding of carbon steels, such as ASTM A36, A285, A515-Gr 70, & A516-Gr 70.
  • Developed for low hydrogen deposits utilizing 75-80% Ar/balance CO₂ sheilding gas.
  • Microalloying and slag adjustments provide enhanced CVN toughness values at lower than required classification temperatures.
  • Well suited for structural welding and general fabrication.
  • A good choice for fine grained, high toughness steels, such as ASTM A572 and A633.

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
    Flow Rate: 40 – 50 CFM

Polarity

Direct Current Electrode Positive (DCEP)

Conformances

  • AWS A5.20
    • E71T-12M-JH4
  • AWS A5.29
    • E81T1-GM-H4
  • Approvals
    Agency Approval Shielding Gas Diameter(s)
    in (mm)
    ABS 4YSA H5 M21 (75% Ar/25% CO₂) 0.035 (0.9) – 1/16 (1.6)
    DNV IV YMS (H5) M21 (75% Ar/25% CO₂) 0.035 (0.9) – 1/16 (1.6)
    TYPICAL WELD DEPOSIT CHEMISTRY (WT%)
    Shielding Gas C Cr Cu Mn Mo Ni P S Si V
    75% Ar/25% CO₂ 0.06 0.04 0.022 1.35 <0.01 0.40 0.01 0.01 0.36 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)
    Charpy V-Notch
    -40 °F ft⋅lb (-40 °C J)
    Charpy V-Notch
    -60 °F ft⋅lb (-51 °C J)
    75%Ar / 25%CO2 87 (600) 76 (524) 27 As-Welded 111 (151) 95 (129) 65 (88)

    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.