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CLASSIFICATION: E70C-6M per AWS A5.18, ASME SFA 5.18

APPROVALS: Lloyd’s 3S, 3YS, ABS 3SA, 3YSA, DNV 3 YMS

A nickel bearing version of Select 70C-6, Select 70C-T is a composite metal cored electrode designed for single and multiple pass welding of carbon or certain low alloy steels requiring excellent CVN toughness at temperatures as low as -50°F.

APPLICATIONS: The excellent toughness of Select 70C-T makes it an ideal selection for welding fine grained steels and many low alloy steels such as ASTM A515 Gr 70, A516 Gr 70 and 1% Ni steels. These materials would be used in the fabrication of railcars, mining machinery, earthmoving equipment, pipeline material and fabrications utilized in cold climates.

DIAMETERS: .035", .045", .052", 1/16"

SHIELDING GAS: 75-95% Ar/balance CO2, 40-55 cfh

WELDING POSITIONS: All Positions

CHARACTERISTICS:

  • Excellent low temperature toughness.
  • True spray arc transfer with virtually no spatter.
  • Superior bead profile with virtually no convexity.
  • Deoxidizer content allows welding over mill scale with no surface porosity.
  • Significant advantages over welding with solid wire.

    TYPICAL MECHANICAL PROPERTIES
      75% Ar /
    25% CO2
    Ultimate Tensile Strength (psi) 88,900
    Yield Strength (psi) 76,300
    Percent Elongation 28
    CVN (ftlb f) @ -50° F 38

    TYPICAL DEPOSIT COMPOSITION
    Wt% C Mn P S Si Ni
    75 Ar/25 CO2
    .04 1.59 .010 .010 .69 .40

    TYPICAL WELDING PARAMETERS:
      Operating Range Optimum
    Diam. Amps
    (DCEP)
    WFS
    (in/min)
    Volts ESO Amps WFS Volts
    .035" 160-250 350-750 24-35 1/2-3/4" 200 550 29-30
    .045" 180-330 240-600 27-33 1/2-1" 255 410 29-30
    .052" 220-460 220-620 25-35 1/2-1" 300 350 29-30
    1/16" 240-520 175-500 26-37 3/4-1 1/4" 360 300 29-30

    TYPICAL SHORT ARC PARAMETERS
    (for out of position welding)
    Diam. Amps WFS Volts
    .035" 100 145 15-16
    .045" 140 150 16-17
    .052" 125 120 17-18
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