Select 125-K4C

Low Alloy / Flux Cored / Gas Shielded

Resources

Features

  • The basic slag system of this electrode provides better mechanical properties and diffusible hydrogen levels in the weld deposit than T-1 (rutile) slag systems.
  • Globular arc transfer, producing more spatter than T-1 slag systems but much improved over usual T-5 types.
  • Slag removal and bead geometry are similar to those of E12018 electrodes.
  • Ideal selection for welding high strength, low alloy steels such as T-1, HY-100, ASTM A514, and others of similar strength. Also use for repair of high strength castings.
  • Designed for 100% CO₂ shielding gas. If you wish to use 75% Ar / 25% CO₂, Select 125-K4M is the preferred product

Standard Diameters

in (mm)
  • 0.045 (1.2)
  • 1/16 (1.6)
  • 3/32 (2.4)

Welding Positions

Flat and Horizontal

Shielding

  • 100% CO₂
    Flow Rate: 40 – 50 CFM

Polarity

Direct Current Electrode Positive (DCEP)

Conformances

  • AWS A5.29
    • E120T5-K4C
    • TYPICAL WELD DEPOSIT CHEMISTRY (WT%)
    Shielding Gas C Cr Mn Mo Ni P S Si V
    100% CO₂ 0.06 0.42 2.15 0.35 2.27 0.006 0.009 0.43 0.006
    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)
    100%CO2 127 (879) 113 (778) 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)
    0.045 (1.2) 100% CO₂ Flat & Horizontal 275 (7.0) 160 25 5/8 (16)
    0.045 (1.2) 100% CO₂ Flat & Horizontal 350 (8.9) 190 27 5/8 – 3/4 (16 – 19)
    0.045 (1.2) 100% CO₂ Flat & Horizontal 435 (11.0) 220 29 5/8 – 3/4 (16 – 19)
    1/16 (1.6) 100% CO₂ Flat & Horizontal 250 (6.4) 265 25 3/4 (19)
    1/16 (1.6) 100% CO₂ Flat & Horizontal 280 (7.1) 290 27 3/4 – 1 (19 – 25)
    1/16 (1.6) 100% CO₂ Flat & Horizontal 315 (8.0) 315 29 3/4 – 1 (19 – 25)
    3/32 (2.4) 100% CO₂ Flat & Horizontal 120 (3.0) 275 25 1 1/4 (32)
    3/32 (2.4) 100% CO₂ Flat & Horizontal 150 (3.8) 335 27 1 1/4 – 1 1/2 (32 – 38)
    3/32 (2.4) 100% CO₂ Flat & Horizontal 165 (4.2) 400 29 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.