Select 125-K4M

Low Alloy / Flux Cored / Gas Shielded

Resources

Features

  • Designed for welding of low alloy steels, such as ASTM A514 or HY-100. Also well suited for structural welding and general fabrication.
  • Basic slag system allows for excellent mechanical properties.
  • In contrast with T-1 slag systems, this electrode has a globular transfer. However, the welding performance is improved over usual T-5 slag systems, featuring excellent slag release and bead geometry.
  • Typical applications include mining machinery, cranes, and construction equipment.
  • Designed for 75-80% Ar / balance CO₂ shielding gas. If you wish to use 100% CO₂, Select 125-K4C is the preferred choice

Standard Diameters

in (mm)
  • 1/16 (1.6)
  • 3/32 (2.4)

Welding Positions

Flat and Horizontal

Shielding

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

Polarity

Direct Current Electrode Positive (DCEP)

Conformances

  • AWS A5.29
    • E120T5-K4M-H4
    • TYPICAL WELD DEPOSIT CHEMISTRY (WT%)
    Shielding Gas C Cr Mn Mo Ni P S Si V
    75% Ar/25% CO₂ 0.08 0.43 1.98 0.39 2.51 0.006 0.010 0.62 0.004
    Typical Mechanical Properties
    Shielding Gas Tensile Strength
    ksi (MPa)    		 Yield Strength
    ksi (MPa)    		 Elongation
    (%)    		 WeldCondition PWHTTemp Charpy V-Notch
    -60 °F ft⋅lb (-51 °C J)
    75%Ar / 25%CO2 134 (924) 112 (772) 19 As-Welded – 39 (53)
    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)
    1/16 (1.6) 75% Ar/25% CO₂ Flat & Horizontal 250 (6.4) 265 24 3/4 (19)
    1/16 (1.6) 75% Ar/25% CO₂ Flat & Horizontal 280 (7.1) 290 26 3/4 – 1 (19 – 25)
    1/16 (1.6) 75% Ar/25% CO₂ Flat & Horizontal 315 (8.0) 315 28 3/4 – 1 (19 – 25)
    3/32 (2.4) 75% Ar/25% CO₂ Flat & Horizontal 120 (3.0) 275 24 1 1/4 (32)
    3/32 (2.4) 75% Ar/25% CO₂ Flat & Horizontal 150 (3.8) 335 26 1 1/4 – 1 1/2 (32 – 38)
    3/32 (2.4) 75% Ar/25% CO₂ Flat & Horizontal 165 (4.2) 400 28 1 1/4 – 1 1/2 (32 – 38)

    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.