Select 720HP H4

Carbon Steel / Flux Cored / Gas Shielded

Resources

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

  • 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)
    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) 75% Ar/25% CO₂ All-Position 275 (7.0) 120 22 1/2 – 5/8 (13 – 16)
    0.035 (0.9) 75% Ar/25% CO₂ All-Position 320 (8.1) 135 23 1/2 – 5/8 (13 – 16)
    0.035 (0.9) 75% Ar/25% CO₂ All-Position 420 (10.7) 160 25 1/2 – 5/8 (13 – 16)
    0.035 (0.9) 75% Ar/25% CO₂ Flat & Horizontal 465 (11.8) 180 26 5/8 – 3/4 (16 – 19)
    0.035 (0.9) 75% Ar/25% CO₂ Flat & Horizontal 570 (14.5) 200 28 5/8 – 3/4 (16 – 19)
    0.045 (1.2) 75% Ar/25% CO₂ All-Position 200 (5.1) 145 22 1/2 – 5/8 (13 – 16)
    0.045 (1.2) 75% Ar/25% CO₂ All-Position 235 (6.0) 160 23 1/2 – 5/8 (13 – 16)
    0.045 (1.2) 75% Ar/25% CO₂ All-Position 300 (7.6) 185 25 1/2 – 5/8 (13 – 16)
    0.045 (1.2) 75% Ar/25% CO₂ Flat & Horizontal 375 (9.5) 215 26 5/8 – 3/4 (16 – 19)
    0.045 (1.2) 75% Ar/25% CO₂ Flat & Horizontal 440 (11.2) 235 28 5/8 – 3/4 (16 – 19)
    0.052 (1.3) 75% Ar/25% CO₂ All-Position 170 (4.3) 155 22 5/8 – 3/4 (16 – 19)
    0.052 (1.3) 75% Ar/25% CO₂ All-Position 200 (5.1) 175 23 5/8 – 3/4 (16 – 19)
    0.052 (1.3) 75% Ar/25% CO₂ All-Position 250 (6.4) 225 25 5/8 – 3/4 (16 – 19)
    0.052 (1.3) 75% Ar/25% CO₂ Flat & Horizontal 310 (7.9) 250 26 3/4 – 1 (19 – 25)
    0.052 (1.3) 75% Ar/25% CO₂ Flat & Horizontal 395 (10.0) 280 28 3/4 – 1 (19 – 25)
    1/16 (1.6) 75% Ar/25% CO₂ All-Position 125 (3.2) 165 22 5/8 – 3/4 (16 – 19)
    1/16 (1.6) 75% Ar/25% CO₂ All-Position 150 (3.8) 195 23 5/8 – 3/4 (16 – 19)
    1/16 (1.6) 75% Ar/25% CO₂ All-Position 185 (4.7) 225 25 5/8 – 3/4 (16 – 19)
    1/16 (1.6) 75% Ar/25% CO₂ Flat & Horizontal 265 (6.7) 280 26 3/4 – 1 (19 – 25)
    1/16 (1.6) 75% Ar/25% CO₂ Flat & Horizontal 325 (8.3) 320 28 3/4 – 1 (19 – 25)

    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.