Select 70C-T

Carbon Steel / Metal Cored / Gas Shielded

Resources

Features

  • This electrode is a microalloyed version of Select 70C-6, offering superior CVN toughness values at temperatures as low as -40º F.
  • Intended for single and multiple pass welding of most carbon steels, such as ASTM A36, A285, A515-Gr 70, and A516-Gr 70 and 1% Ni steels.
  • This electrode exhibits a true spray transfer, with virtually no spatter.
  • Minimal slag islands on the weld surface, and these decrease with increased argon in the shielding gas.
  • Smaller diameter electrodes can be used in all position welding with either pulse arc or short circuit arc welding process.
  • These materials would be used in the fabrication of railcars, mining machinery, shipbuilding, earthmoving equipment, pipeline material, and fabrications utilized in cold climates.

Standard Diameters

in (mm)
  • 0.035 (0.9)
  • 0.045 (1.2)

Welding Positions

Flat and Horizontal

Shielding

  • 75-92% Ar / Balance CO₂
    Flow Rate: 40 – 50 CFM

Polarity

Direct Current Electrode Positive (DCEP)

Conformances

  • ASME SFA 5.18
    • E70C-6M
  • AWS A5.18
    • E70C-6M
  • AWS A5.36
    • E70T15-M20A4-CS1
    • E70T15-M21A4-CS1
    • Approvals
    Agency Approval Shielding Gas Diameter(s)
    in (mm)
    ABS 3YSA M21 (75% Ar/25% CO₂) 0.035 (0.9) – 1/16 (1.6)
    CWB E491T15-M20A4-CS1-H4 (E491C-6MJ-H4) M20 (92%Ar / 8%CO₂) 0.035 (0.9) – 1/16 (1.6)
    CWB E491T15-M21A4-CS1-H4 (E491C-6MJ-H4) M21 (75% Ar/25% CO₂) 0.035 (0.9) – 1/16 (1.6)
    DNV III 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 0.05 0.04 0.05 1.69 0.002 0.39 0.011 0.010 0.67 0.005
    92%Ar / 8%CO₂ 0.05 0.04 0.04 1.70 0.004 0.39 0.013 0.008 0.75 0.004
    Typical Mechanical Properties
    Shielding Gas Tensile Strength
    ksi (MPa)    		 Yield Strength
    ksi (MPa)    		 Elongation
    (%)    		 WeldCondition PWHTTemp Charpy V-Notch
    -40 °F ft⋅lb (-40 °C J)
    75%Ar / 25%CO2 85 (586) 78 (538) 30 As-Welded – 33 (45)
    92%Ar / 8%CO2 90 (621) 73 (503) 28 As-Welded – 25 (34)
    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 Flat & Horizontal 345 (8.8) 170 25 1/2 – 5/8 (13 – 16)
    0.035 (0.9) 75% Ar/25% CO₂ Flat & Horizontal 425 (10.8) 190 26 1/2 – 5/8 (13 – 16)
    0.035 (0.9) 75% Ar/25% CO₂ Flat & Horizontal 475 (12.1) 210 27.5 5/8 – 3/4 (16 – 19)
    0.035 (0.9) 75% Ar/25% CO₂ Flat & Horizontal 570 (14.5) 225 29 5/8 – 3/4 (16 – 19)
    0.045 (1.2) 75% Ar/25% CO₂ Flat & Horizontal 260 (6.6) 200 25 1/2 – 5/8 (13 – 16)
    0.045 (1.2) 75% Ar/25% CO₂ Flat & Horizontal 305 (7.7) 220 26 1/2 – 5/8 (13 – 16)
    0.045 (1.2) 75% Ar/25% CO₂ Flat & Horizontal 360 (9.1) 240 27.5 5/8 – 3/4 (16 – 19)
    0.045 (1.2) 75% Ar/25% CO₂ Flat & Horizontal 405 (10.3) 255 29 5/8 – 3/4 (16 – 19)

    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.